Device and method for automatically detecting open circuit and short circuit of chip

Abstract

The invention relates to the technical field of semiconductor test equipment, in particular to an automatic detection device and method for open circuit and short circuit of a chip. Comprising a single-chip microcomputer master control module and an ADC measurement unit, one end of the single-chip microcomputer master control module is connected with a switch data transmission module, the switch data transmission module is connected with an operation display screen, the other end of the single-chip microcomputer master control module is connected with the ADC measurement unit, a test channel of the ADC measurement unit is provided with a relay switching module, and the relay switching module is connected with the switch data transmission module. The relay switching module is communicated with the single-chip microcomputer master control module, and the test channel is connected with a chip to be tested through the adapter plate. Compared with the prior art, by adopting a more efficient test method and simplifying the circuit design, the complexity of the circuit is reduced while the test accuracy is ensured. The simplification not only improves the reliability of the test equipment, but also reduces the maintenance and upgrade costs. And in addition, the size is miniaturized, so that the physical size of equipment can be reduced while the test performance is maintained, and the equipment is more compact and portable.

Description

Technical Field

[0001] The invention relates to the technical field of semiconductor testing equipment, in particular to a device and method for automatically detecting chip open and short circuits. Background Art

[0002] Semiconductor testers are an important part of semiconductor testing equipment. They are mainly used to verify the performance and diagnose faults of integrated circuits (ICs) to ensure the quality and reliability of products. These devices are widely used in the semiconductor field, including the verification stage in the integrated circuit design stage and the finished product testing stage in the packaging and testing stage. The tester automatically transfers the chip to be tested to the test station, connects it to the functional module of the tester through a dedicated connection line, and transmits the test results to the sorting machine after testing. The sorting machine marks, classifies, and collects the chips according to the test results. Types of testers include translational test sorters, gravity test sorters, tray test sorters, etc. They play a vital role in the semiconductor industry chain to ensure that the quality and performance of semiconductor products meet the standard requirements.

[0003] ATE, (Auto Test Equipment), also known as automatic test equipment or semiconductor test equipment, is a highly specialized electronic measuring instrument used to automatically verify the performance and diagnose faults of the object under test (such as chips). ATE testers play an important role in all aspects of semiconductor design, manufacturing, packaging, etc., ensuring product quality, cost control and time to market through repeated inspections and tests. With the continuous advancement of semiconductor technology, the integration and miniaturization of IC testers are increasing. At the same time, the integration of artificial intelligence and machine learning technologies has promoted the intelligent and automated development of testers. In addition, the rapid development of 5G and Internet of Things technologies, as well as the continuous upgrading of the semiconductor industry, have brought broad application prospects and higher performance requirements to the IC tester market.

[0004] Mainstream IC tester types include SoC testers, storage testers, analog testers, and mixed analog testers. SoC testers mainly test system-level chips, storage testers focus on testing storage chips, analog testers test analog circuits, and mixed analog testers can handle the testing of digital and analog signals at the same time, which is suitable for complex mixed signal chips. These testers have the characteristics of high precision, high efficiency, and high sensitivity, support multiple test modes and test procedures, meet different test requirements, and ensure the accuracy and reliability of test results.

[0005] During the chip manufacturing process, it is necessary to detect the quality of the packaging structure. By early detection and elimination of problematic chips, costs and time can be effectively reduced. Testing the connection and disconnection of chips using ATE testing equipment is generally expensive, resulting in high testing costs. Summary of the invention

[0006] In order to overcome the deficiencies of the prior art, the present invention provides a chip open and short circuit automatic detection device and method, so as to achieve the purpose of effectively reducing the test cost.

[0007] To achieve the above purpose, a chip open and short circuit automatic detection device is designed, including a single-chip microcomputer main control module and an ADC measurement unit. One end of the single-chip microcomputer main control module is connected to a switch data transmission module, and the switch data transmission module is connected to an operation display screen. The other end of the single-chip microcomputer main control module is connected to the ADC measurement unit. A relay switching module is provided in a test channel of the ADC measurement unit. The relay switching module is connected to the single-chip microcomputer main control module, and the test channel is connected to the chip to be tested through an adapter board.

[0008] The single-chip microcomputer main control module uses the STM32H745 series, and the ADC measurement unit uses the STM32H745 series sampling channel.

[0009] To achieve the above purpose, a method for automatically detecting chip open and short circuits is designed, comprising the following steps: S1, the MCU main control module receives the command signal from the host computer and sends a command to open a relay according to the command signal; S2, the corresponding relay switching module receives the instruction and the switching module starts working; S3, current is injected into a pin of the chip under test; S4, the test channel of the ADC measurement unit samples the current of the pin of the chip to be tested; S5, the MCU main control module obtains the sampling results and uploads them to the host computer; S6, the host computer receives the sampling result, determines whether the pin of the chip to be tested is qualified, and distinguishes good products from defective products; S7, the host computer transmits the test BIN information results to the sorting machine according to the GPIB communication protocol; S8, the sorting machine sorts the good and bad chips, collects and processes the bad chips, and performs step S9 on the good chips; S9, repeating steps S1 to S8 until all pins of the chip to be tested are tested.

[0010] Compared with the prior art, the present invention reduces the complexity of the circuit while ensuring the accuracy of the test by adopting a more efficient test method and simplifying the circuit design. This simplification not only improves the reliability of the test equipment, but also reduces the cost of maintenance and upgrading. In addition, the miniaturization achieved can reduce the physical size of the equipment while maintaining the test performance, making it more compact and portable. This miniaturized design not only helps to reduce manufacturing costs, but also improves the deployability and flexibility of use of the test equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 A block diagram of the present invention.

[0012] Figure 2 It is a circuit diagram of the relay switching module of the present invention.

[0013] Figure 3 for Figure 2 Partial magnification Figure 1 .

[0014] Figure 4 for Figure 2 Partial magnification Figure 2 .

[0015] Figure 5 for Figure 2 Partial magnification Figure 3 .

[0016] Figure 6 for Figure 2 Partial magnification Figure 4 .

[0017] Figure 7 FIG. 4 is a circuit diagram of the adapter board of the present invention.

[0018] Figure 8 It is a flow chart of the present invention. DETAILED DESCRIPTION

[0019] The present invention will be further described below with reference to the accompanying drawings.

[0020] like Figure 1 As shown, one end of the single-chip main control module 1 is connected to the switch data transmission module 2, the switch data transmission module 2 is connected to the operation display screen 3, the other end of the single-chip main control module 1 is connected to the ADC measurement unit 4, the test channel 5 of the ADC measurement unit 4 is provided with a relay switching module 6, the relay switching module 6 is connected to the single-chip main control module 1, and the test channel 5 is connected to the chip to be tested 8 through the adapter board 7.

[0021] like Figures 2 to 6As shown, the circuit of the relay switching module includes several chips and relays. Pin 1 of chip U1 is grounded, pin 2 of chip U1 is connected to one end of capacitor C1, the other end of capacitor C1 is connected to pin 4 of chip U1, pin 3 of chip U1 is grounded, pin 5 of chip U1 is respectively connected to one end of capacitor C6 and one end of resistor R1, the other end of capacitor C6 is grounded, the other end of resistor R1 is connected to port 10 of terminal P1, pin 6 of chip U1 is grounded, pin 8 of chip U1 is connected to pin 47 of U6 and pin 47 of U8, pin 1 of chip U2 is grounded, pin 2 of chip U2 is connected to one end of capacitor C2, the other end of capacitor C2 is connected to port 10 of terminal P1, pin 6 of chip U1 is grounded, pin 8 of chip U1 is connected to pin 47 of U6 and pin 47 of U8, pin 1 of chip U2 is grounded, pin 2 of chip U2 is connected to one end of capacitor C2, and the other end of capacitor C2 is connected to port 10 of terminal P1. Connect pin 4 of chip 2 U2, pin 3 of chip 2 U2 is grounded, pin 5 of chip 2 U2 is respectively connected to one end of capacitor 7 C7 and one end of resistor 2 R2, the other end of capacitor 7 C7 is grounded, the other end of resistor 2 R2 is connected to port 6 of terminal 1 P1, pin 6 of chip 2 U2 is grounded, pin 8 of chip 2 U2 is connected to pin 43 of U6 and pin 43 of U8, pin 1 of chip 3 U3 is grounded, pin 2 of chip 3 U3 is connected to one end of capacitor 3 C3, the other end of capacitor 3 C3 is connected to pin 4 of chip 3 U3, pin 3 of chip 3 U3 is grounded, pin 5 of chip 3 U3 is respectively connected to one end of capacitor 8 C8 and one end of resistor 3 R3, the other end of capacitor 8 C8 is grounded , the other end of resistor R3 is connected to port 4 of terminal block P1, pin 6 of chip U3 is grounded, pin 8 of chip U3 is connected to pin 46 of U6 and pin 46 of U8, pin 1 of chip U4 is grounded, pin 2 of chip U4 is connected to one end of capacitor C4, the other end of capacitor C4 is connected to pin 4 of chip U4, pin 3 of chip U4 is grounded, pin 5 of chip U4 is connected to one end of capacitor C9 and one end of resistor R4 respectively, the other end of capacitor C9 is grounded, the other end of resistor R4 is connected to port 2 of terminal block P1, pin 6 of chip U4 is grounded, pin 8 of chip U4 is connected to pin 44 of U6 and pin 44 of U8, Pin 1 of chip U5 is grounded, pin 2 of chip U5 is connected to one end of capacitor C5, the other end of capacitor C5 is connected to pin 4 of chip U5, pin 3 of chip U5 is grounded, pin 5 of chip U5 is respectively connected to one end of capacitor C10 and one end of resistor R5, the other end of capacitor C10 is grounded, the other end of resistor R5 is connected to port 8 of terminal P1, pin 6 of chip U5 is grounded, pin 8 of chip U5 is connected to pin 45 of U6 and pin 45 of U8, port 1 of relay K1 is respectively connected to one end of diode D1, one end of resistor R20 and 5V voltage, the other end of resistor R20 is connected to the anode of light-emitting diode LED1,The cathode of the light emitting diode LED1 is respectively connected to the other end of the diode D1, the port No. 8 of the relay K1, and the collector of the transistor Q1. The emitter of the transistor Q1 is respectively connected to one end of the resistor R7 and ground. The other end of the resistor R7 is respectively connected to the base of the transistor Q1 and one end of the resistor R6. The other end of the resistor R6 is respectively connected to the pin No. 48 of U6 and the pin No. 48 of U8. The port No. 2 of the relay K1 is grounded. The port No. 3 of the relay K1 is respectively connected to the ports No. 1, No. 3, No. 5, No. 7, and No. 9 of the connection terminal J1, the ports No. 1, No. 3, No. 5, No. 7, and No. 9 of the connection terminal J2, and the ports No. 1, No. 3, No. 5, No. 7, and No. 9 of the connection terminal J3. , connect the No. 1, No. 3, No. 5, No. 7, and No. 9 ports of the terminal four J4, the No. 1 port of the relay two K2 is respectively connected to one end of the diode two D2, one end of the resistor twenty-one R21, and a 5V voltage, the other end of the resistor twenty-one R21 is connected to the anode of the light-emitting diode two LED2, the cathode of the light-emitting diode two LED2 is respectively connected to the other end of the diode two D2, the No. 8 port of the relay two K2, the collector of the transistor two Q2, the emitter of the transistor two Q2 is respectively connected to one end of the resistor fourteen R14 and ground, the other end of the resistor fourteen R14 is respectively connected to the base of the transistor two Q2, one end of the resistor eight R8, the other end of the resistor eight R8 is respectively connected to the No. 1 pin of U8, the No. 2 port of the relay two K2 is connected Connect terminal 1 J1 with port 2, relay 2 K2 with port 3 connected to pin 1 of U6, relay 2 K2 with port 4 connected to terminal 1 P1 with port 9, relay 3 K3 with port 1 connected to one end of diode 3 D3, one end of resistor 22 R22, and 5V voltage, the other end of resistor 22 R22 connected to the anode of light emitting diode 3 LED3, the cathode of light emitting diode 3 LED3 connected to the other end of diode 3 D3, relay 3 K3 with port 8, and the collector of transistor 3 Q3, the emitter of transistor 3 Q3 connected to one end of resistor 15 R15 and ground, the other end of resistor 15 R15 connected to the base of transistor 3 Q3 and one end of resistor 9 R9, The other end of resistor nine R9 is connected to pin No. 7 of U8, port No. 2 of relay three K3 is connected to port No. 8 of connection terminal one J1, port No. 3 of relay three K3 is connected to pin No. 7 of U6, port No. 4 of relay three K3 is connected to port No. 9 of connection terminal one P1, port No. 1 of relay four K4 is connected to one end of diode four D4, one end of resistor twenty-three R23 and 5V voltage, the other end of resistor twenty-three R23 is connected to the anode of light-emitting diode four LED4, the cathode of light-emitting diode four LED4 is connected to the other end of diode four D4, port No. 8 of relay four K4 and the collector of transistor four Q4, the emitter of transistor four Q4 is connected to one end of resistor sixteen R16 and ground,The other end of resistor R16 is connected to the base of transistor Q4 and one end of resistor R10 respectively, the other end of resistor R10 is connected to pin 13 of U8 respectively, port 2 of relay K4 is connected to port 4 of connection terminal J1, port 3 of relay K4 is connected to pin 13 of U6, port 4 of relay K4 is connected to port 9 of connection terminal P1, port 1 of relay K5 is connected to one end of diode D5, one end of resistor R24 ​​and 5V voltage respectively, the other end of resistor R24 ​​is connected to the anode of light-emitting diode LED5, the cathode of light-emitting diode LED5 is connected to the other end of diode D5, port 8 of relay K5 and transistor The collector of Q5 and the emitter of transistor Q5 are connected to one end of resistor R17 and ground respectively, the other end of resistor R17 is connected to the base of transistor Q5 and one end of resistor R11 respectively, the other end of resistor R11 is connected to pin 19 of U8 respectively, port 2 of relay K5 is connected to port 10 of connection terminal J2, port 3 of relay K5 is connected to pin 19 of U6, port 4 of relay K5 is connected to port 9 of connection terminal P1, port 1 of relay K6 is connected to one end of diode D6, one end of resistor R25 and 5V voltage respectively, the other end of resistor R25 is connected to the anode of light emitting diode LED6, the light emitting diode The cathode of LED6 is respectively connected to the other end of diode D6, port 8 of relay K6, and the collector of transistor Q6. The emitter of transistor Q6 is respectively connected to one end of resistor R18 and ground. The other end of resistor R18 is respectively connected to the base of transistor Q6 and one end of resistor R12. The other end of resistor R12 is respectively connected to pin 25 of U8. Port 2 of relay K6 is connected to port 6 of connection terminal J3. Port 3 of relay K6 is connected to pin 25 of U6. Port 4 of relay K6 is connected to port 9 of connection terminal P1. Port 1 of relay K7 is respectively connected to one end of diode D7, one end of resistor R26, 5V voltage, the other end of resistor R26 is connected to the anode of light emitting diode LED7, the cathode of light emitting diode LED7 is respectively connected to the other end of diode D7, port 8 of relay K7, and the collector of transistor Q7, the emitter of transistor Q7 is respectively connected to one end of resistor R19 and ground, the other end of resistor R19 is respectively connected to the base of transistor Q7 and one end of resistor R13, the other end of resistor R13 is respectively connected to pin 31 of U8, port 2 of relay K7 is connected to port 2 of connection terminal J4, port 3 of relay K7 is connected to pin 31 of U6, port 4 of relay K7 is connected to port 9 of connection terminal P1,Port 1 of relay 8K8 is respectively connected to one end of diode 8D8, one end of resistor 41 R41, and 5V voltage, the other end of resistor 41 R41 is connected to the anode of light emitting diode 8LED8, the cathode of light emitting diode 8LED8 is respectively connected to the other end of diode 8D8, port 8 of relay 8K8, and the collector of transistor 8Q8, the emitter of transistor 8Q8 is respectively connected to one end of resistor 34R34 and ground, the other end of resistor 34R34 is respectively connected to the base of transistor 8Q8 and one end of resistor 27R27, the other end of resistor 27R27 is respectively connected to pin 3 of U8, port 2 of relay 8K8 is connected to terminal 4 of connection terminal 1J1 port, port 3 of relay eight K8 is connected to pin 3 of U6, port 4 of relay eight K8 is connected to port 9 of terminal one P1, port 1 of relay nine K9 is respectively connected to one end of diode nine D9, one end of resistor forty-two R42, and 5V voltage, the other end of resistor forty-two R42 is connected to the anode of light-emitting diode nine LED9, the cathode of light-emitting diode nine LED9 is respectively connected to the other end of diode nine D9, port 8 of relay nine K9, and the collector of transistor nine Q9, the emitter of transistor nine Q9 is respectively connected to one end of resistor thirty-five R35 and ground, the other end of resistor thirty-five R35 is respectively connected to the base of transistor nine Q9 and one end of resistor twenty-eight R28, The other end of resistor R28 is connected to pin 9 of U8, port 2 of relay K9 is connected to port 10 of connection terminal J1, port 3 of relay K9 is connected to pin 9 of U6, port 4 of relay K9 is connected to port 9 of connection terminal P1, port 1 of relay K10 is connected to one end of diode D10, one end of resistor R43 and 5V voltage, the other end of resistor R43 is connected to the anode of light-emitting diode LED10, the cathode of light-emitting diode LED10 is connected to the other end of diode D10, port 8 of relay K10, collector of transistor Q10 and emitter of transistor Q10. The electrodes are respectively connected to one end of resistor thirty-six R36 and ground, the other end of resistor thirty-six R36 is respectively connected to the base of transistor ten Q10 and one end of resistor twenty-nine R29, the other end of resistor twenty-nine R29 is respectively connected to pin 15 of U8, port 2 of relay ten K10 is connected to port 6 of connection terminal two J2, port 3 of relay ten K10 is connected to pin 15 of U6, port 4 of relay ten K10 is connected to port 9 of connection terminal one P1, port 1 of relay eleven K11 is respectively connected to one end of diode eleven D11, one end of resistor forty-four R44 and 5V voltage, the other end of resistor forty-four R44 is connected to the anode of light-emitting diode eleven LED11,The cathode of the light emitting diode LED11 is respectively connected to the other end of the diode D11, the port 8 of the relay K11, and the collector of the transistor Q11. The emitter of the transistor Q11 is respectively connected to one end of the resistor R37 and the ground. The other end of the resistor R37 is respectively connected to the base of the transistor Q11 and one end of the resistor R30. The other end of the resistor R30 is respectively connected to the pin 21 of U8. The port 2 of the relay K11 is connected to the port 2 of the connection terminal J3. The port 3 of the relay K11 is connected to the pin 21 of U6. The port 4 of the relay K11 is connected to the port 9 of the connection terminal P1. The port 1 of the relay K12 is respectively connected to the pin 21 of U6. Respectively connect one end of diode D12, one end of resistor R45, and 5V voltage. The other end of resistor R45 is connected to the anode of light-emitting diode LED12. The cathode of light-emitting diode LED12 is respectively connected to the other end of diode D12, port 8 of relay K12, and the collector of transistor Q12. The emitter of transistor Q12 is respectively connected to one end of resistor R38 and ground. The other end of resistor R38 is respectively connected to the base of transistor Q12 and one end of resistor R31. The other end of resistor R31 is respectively connected to pin 27 of U8. Port 2 of relay K12 is connected to port 8 of connection terminal J3. Relay Port 3 of relay K12 is connected to pin 27 of U6, port 4 of relay K12 is connected to port 9 of terminal P1, port 1 of relay K13 is respectively connected to one end of diode D13, one end of resistor R46 and 5V voltage, the other end of resistor R46 is connected to the anode of light emitting diode LED13, the cathode of light emitting diode LED13 is respectively connected to the other end of diode D13, port 8 of relay K13 and the collector of transistor Q13, the emitter of transistor Q13 is respectively connected to one end of resistor R39 and ground, the other end of resistor R39 is respectively connected to the base of transistor Q13, resistor One end of the second resistor R32 and the other end of the resistor R32 are connected to the 33rd pin of U8, the 2nd port of the relay K13 is connected to the 4th port of the connecting terminal J4, the 3rd port of the relay K13 is connected to the 33rd pin of U6, the 4th port of the relay K13 is connected to the 9th port of the connecting terminal P1, the 1st port of the relay K14 is connected to one end of the diode D14, one end of the resistor R47 and the 5V voltage, the other end of the resistor R47 is connected to the anode of the light emitting diode LED14, the cathode of the light emitting diode LED14 is connected to the other end of the diode D14, the 8th port of the relay K14 and the collector of the transistor Q14,The emitter of transistor fourteen Q14 is respectively connected to one end of resistor fourty R40 and ground, the other end of resistor fourty R40 is respectively connected to the base of transistor fourteen Q14 and one end of resistor thirty-three R33, the other end of resistor thirty-three R33 is respectively connected to pin 37 of U8, port 2 of relay fourteen K14 is connected to port 8 of connection terminal four J4, port 3 of relay fourteen K14 is connected to pin 37 of U6, port 4 of relay fourteen K14 is connected to port 9 of connection terminal one P1, port 1 of relay fifteen K15 is respectively connected to one end of diode fifteen D15, one end of resistor sixty-two R62 and 5V voltage, the other end of resistor sixty-two R62 is connected to the anode of light-emitting diode fifteen LED15 , the cathode of the light emitting diode LED15 is respectively connected to the other end of the diode D15, the No. 8 port of the relay K15, and the collector of the transistor Q15, the emitter of the transistor Q15 is respectively connected to one end of the resistor R55 and the ground, the other end of the resistor R55 is respectively connected to the base of the transistor Q15 and one end of the resistor R48, the other end of the resistor R48 is respectively connected to the No. 5 pin of U8, the No. 2 port of the relay K15 is connected to the No. 6 port of the connection terminal J1, the No. 3 port of the relay K15 is connected to the No. 5 pin of U6, the No. 4 port of the relay K15 is connected to the No. 9 port of the connection terminal P1, and the No. 1 port of the relay K16 is respectively connected to Connect one end of diode D16, one end of resistor R63, and 5V voltage, the other end of resistor R63 is connected to the anode of light-emitting diode LED16, the cathode of light-emitting diode LED16 is respectively connected to the other end of diode D16, port 8 of relay K16, and the collector of transistor Q16, the emitter of transistor Q16 is respectively connected to one end of resistor R56 and ground, the other end of resistor R56 is respectively connected to the base of transistor Q16 and one end of resistor R49, the other end of resistor R49 is respectively connected to pin 11 of U8, port 2 of relay K16 is connected to port 2 of connection terminal J2, relay K16 is respectively connected to port 11 of connection terminal J2, Port 3 of relay K16 is connected to pin 11 of U6, port 4 of relay K16 is connected to port 9 of terminal P1, port 1 of relay K17 is respectively connected to one end of diode D17, one end of resistor R64 and 5V voltage, the other end of resistor R64 is connected to the anode of light emitting diode LED17, the cathode of light emitting diode LED17 is respectively connected to the other end of diode D17, port 8 of relay K17 and the collector of transistor Q17, the emitter of transistor Q17 is respectively connected to one end of resistor R57 and ground, the other end of resistor R57 is respectively connected to the base of transistor Q17 and one end of resistor R50,The other end of the resistor 50 R50 is connected to pin 17 of U8, port 2 of the relay 17 K17 is connected to port 8 of the connection terminal 2 J2, port 3 of the relay 17 K17 is connected to pin 17 of U6, port 4 of the relay 17 K17 is connected to port 9 of the connection terminal 1 P1, port 1 of the relay 18 K18 is connected to one end of the diode 18 D18, one end of the resistor 65 R65, and a 5V voltage, the other end of the resistor 65 R65 is connected to the anode of the light emitting diode 18 LED18, the cathode of the light emitting diode 18 LED18 is connected to the other end of the diode 18 D18, port 8 of the relay 18 K18, the collector of the transistor 18 Q18, and the transistor 18 Q1 The emitter of relay 8 is respectively connected to one end of resistor 58 R58 and ground, the other end of resistor 58 R58 is respectively connected to the base of transistor 18 Q18 and one end of resistor 51 R51, the other end of resistor 51 R51 is respectively connected to pin 23 of U8, port 2 of relay 18 K18 is connected to port 4 of connection terminal 3 J3, port 3 of relay 18 K18 is connected to pin 23 of U6, port 4 of relay 18 K18 is connected to port 9 of connection terminal 1 P1, port 1 of relay 19 K19 is respectively connected to one end of diode 19 D19, one end of resistor 66 R66 and 5V voltage, the other end of resistor 66 R66 is connected to the anode of light emitting diode 19 LED19, the emitter ... resistor 58 R58 and ground, the other end of resistor 51 R51 is respectively connected to the base of transistor 18 Q18 and one end of resistor 51 R51, the other end of resistor 51 R51 is respectively connected to pin 23 of U8, port 2 of relay 18 K18 is connected to port 4 of connection terminal 3 J3, port 3 of relay 18 K18 is connected to pin 23 of U6, port 4 of relay 18 K18 is connected to port 9 of connection terminal 1 P1, The cathode of the photodiode LED19 is respectively connected to the other end of the diode D19, the No. 8 port of the relay K19, and the collector of the transistor Q19. The emitter of the transistor Q19 is respectively connected to one end of the resistor R59 and the ground. The other end of the resistor R59 is respectively connected to the base of the transistor Q19 and one end of the resistor R52. The other end of the resistor R52 is respectively connected to the No. 29 pin of U8. The No. 2 port of the relay K19 is connected to the No. 10 port of the connection terminal J3. The No. 3 port of the relay K19 is connected to the No. 29 pin of U6. The No. 4 port of the relay K19 is connected to the No. 9 port of the connection terminal P1. The No. 1 port of the relay K20 is connected to the No. The ports are respectively connected to one end of the diode 20 D20, one end of the resistor 67 R67, and a 5V voltage, the other end of the resistor 67 R67 is connected to the anode of the light-emitting diode 20 LED20, the cathode of the light-emitting diode 20 LED20 is respectively connected to the other end of the diode 20 D20, the No. 8 port of the relay 20 K20, and the collector of the transistor 20 Q20, the emitter of the transistor 20 Q20 is respectively connected to one end of the resistor 60 R60 and ground, the other end of the resistor 60 R60 is respectively connected to the base of the transistor 20 Q20, one end of the resistor 53 R53, the other end of the resistor 53 R53 is respectively connected to the No. 35 pin of U8, the No. 2 port of the relay 20 K20 is connected to the No. 6 port of the connection terminal 4 J4,Port 3 of relay K20 is connected to pin 35 of U6, port 4 of relay K20 is connected to port 9 of terminal P1, port 1 of relay K21 is connected to one end of diode D21, one end of resistor R68 and 5V voltage respectively, the other end of resistor R68 is connected to the anode of light-emitting diode LED21, the cathode of light-emitting diode LED21 is connected to the other end of diode D21, port 8 of relay K21, collector of transistor Q21, emitter of transistor Q21 is connected to one end of resistor R61 and ground respectively, the other end of resistor R61 is connected to base of transistor Q21 and one end of resistor R54, the other end of resistor R54 is connected to pin 39 of U8 respectively, port 2 of relay K21 is connected to port 10 of terminal J4, port 3 of relay K21 is connected to Pin 39 of U6, port 4 of relay K21 are connected to port 9 of terminal block P1, port 1 of relay K22 are connected to 5V voltage and one end of resistor R72, the other end of resistor R72 is connected to the anode of light emitting diode LED22, the cathode of light emitting diode LED22 is grounded, port 2 of relay K22 are connected to one end of resistor R73, one end of capacitor C11, one end of capacitor C12, pin 4 of chip U10, one end of capacitor C14, pin 2 of chip U10, the other end of resistor R73 is connected to the anode of light emitting diode LED23, the cathode of light emitting diode LED23 is grounded, the other end of capacitor C11 is grounded, the other end of capacitor C12 is grounded, the other end of capacitor C14 is grounded, pin 1 of chip U10 is grounded, pin 3 of chip U10 are connected to capacitor C15 One end of the DC plug DC, the other end of the capacitor C15 is grounded, the No. 1 port of the relay K23 is respectively connected to one end of the diode D22, one end of the resistor R86, and 5V voltage, the other end of the resistor R86 is connected to the anode of the light-emitting diode LED24, the cathode of the light-emitting diode LED24 is respectively connected to the other end of the diode D22, the No. 8 port of the relay K23, the collector of the transistor Q22, the emitter of the transistor Q22 is respectively connected to one end of the resistor R80 and ground, the other end of the resistor R80 is respectively connected to the base of the transistor Q22, one end of the resistor R74, the other end of the resistor R74 is respectively connected to the No. 4 pin of U8, the No. 3 port of the relay K23 is connected to the No. 2 pin of U6,Port 1 of relay 24 K24 is respectively connected to one end of diode 23 D23, one end of resistor 87 R87, and 5V voltage; the other end of resistor 87 R87 is connected to the anode of light emitting diode 25 LED25; the cathode of light emitting diode 25 LED25 is respectively connected to the other end of diode 23 D23, port 8 of relay 24 K24, and the collector of transistor 23 Q23; the emitter of transistor 23 Q23 is respectively connected to one end of resistor 81 R81 and ground; the other end of resistor 81 R81 is respectively connected to the base of transistor 23 Q23 and one end of resistor 75 R75; the other end of resistor 75 R75 is respectively connected to pin 10 of U8; relay 24 K24 is respectively connected to one end of diode 23 D23, one end of resistor 75 R75, and the other end of resistor 75 R75 is respectively connected to pin 10 of U8; Port 3 of electrical appliance K24 is connected to pin 8 of U6, port 1 of relay K25 is respectively connected to one end of diode D24, one end of resistor R88 and 5V voltage, the other end of resistor R88 is connected to the anode of light emitting diode LED26, the cathode of light emitting diode LED26 is respectively connected to the other end of diode D24, port 8 of relay K25 and collector of transistor Q24, the emitter of transistor Q24 is respectively connected to one end of resistor R82 and ground, the other end of resistor R82 is respectively connected to the base of transistor Q24, one end of resistor R76 and the other end of resistor R77. The other end of R76 is connected to pin 16 of U8, port 3 of relay K25 is connected to pin 14 of U6, port 1 of relay K26 is connected to one end of diode D25, one end of resistor R89 ​​and 5V voltage, the other end of resistor R89 ​​is connected to the anode of light emitting diode LED27, the cathode of light emitting diode LED27 is connected to the other end of diode D25, port 8 of relay K26 and the collector of transistor Q25, the emitter of transistor Q25 is connected to one end of resistor R83 and ground, the other end of resistor R83 is connected to transistor 20 The base of Q25, one end of resistor R77, and the other end of resistor R77 are connected to pin 22 of U8 respectively, port 3 of relay K26 is connected to pin 20 of U6, port 1 of relay K27 is connected to one end of diode D26, one end of resistor R90, and 5V voltage respectively, the other end of resistor R90 is connected to the anode of light emitting diode LED28, the cathode of light emitting diode LED28 is connected to the other end of diode D26, port 8 of relay K27, and the collector of transistor Q26, the emitter of transistor Q26 is connected to one end of resistor R84 and ground respectively,The other end of resistor eighty-four R84 is respectively connected to the base of transistor twenty-six Q26 and one end of resistor seventy-eight R78, the other end of resistor seventy-eight R78 is respectively connected to pin 28 of U8, port 3 of relay twenty-six K26 is connected to pin 26 of U6, port 1 of relay twenty-seven K27 is respectively connected to one end of diode twenty-six D26, one end of resistor ninety R90 and 5V voltage, the other end of resistor ninety R90 is connected to the anode of light-emitting diode twenty-eight LED28, the cathode of light-emitting diode twenty-eight LED28 is respectively connected to the other end of diode twenty-six D26, port 8 of relay twenty-seven K27 and the collector of transistor twenty-six Q26, transistor twenty-six Q26 The emitter of is respectively connected to one end of resistor eighty-four R84 and ground, the other end of resistor eighty-four R84 is respectively connected to the base of transistor twenty-six Q26 and one end of resistor seventy-eight R78, the other end of resistor seventy-eight R78 is respectively connected to pin 28 of U8, port 3 of relay twenty-seven K27 is connected to pin 26 of U6, port 1 of relay twenty-eight K28 is respectively connected to one end of diode twenty-seven D27, one end of resistor ninety-one R91 and 5V voltage, the other end of resistor ninety-one R91 is connected to the anode of light-emitting diode twenty-nine LED29, the cathode of light-emitting diode twenty-nine LED29 is respectively connected to the other end of diode twenty-seven D27 and port 8 of relay twenty-eight K28 , the collector of transistor Q27, the emitter of transistor Q27 are connected to one end of resistor R85 and ground respectively, the other end of resistor R85 is connected to the base of transistor Q27 and one end of resistor R79, the other end of resistor R79 is connected to pin 34 of U8, port 3 of relay K28 is connected to pin 32 of U6, port 1 of relay K29 is connected to one end of diode D28, one end of resistor R106 and 5V voltage respectively, the other end of resistor R106 is connected to the anode of light emitting diode LED30, the cathode of light emitting diode LED30 is connected to diode The other end of D28, the No. 8 port of relay K29, the collector of transistor Q28, and the emitter of transistor Q28 are connected to one end of resistor R99 and ground respectively, the other end of resistor R99 is connected to the base of transistor Q28 and one end of resistor R92, the other end of resistor R92 is connected to pin 6 of U8, the No. 3 port of relay K29 is connected to pin 4 of U6, the No. 1 port of relay K30 is connected to one end of diode D29, one end of resistor R107, and 5V voltage respectively, the other end of resistor R107 is connected to the anode of light emitting diode LED31,The cathode of the light emitting diode 31 LED31 is respectively connected to the other end of the diode 29 D29, the No. 8 port of the relay 30 K30, and the collector of the transistor 29 Q29. The emitter of the transistor 29 Q29 is respectively connected to one end of the resistor 100 R100 and ground. The other end of the resistor 100 R100 is respectively connected to the base of the transistor 29 Q29 and one end of the resistor 93 R93. The other end of the resistor 93 R93 is respectively connected to the No. 12 pin of U8. The No. 3 port of the relay 30 K30 is connected to the No. 10 pin of U6. The No. 1 port of the relay 31 K31 is respectively connected to one end of the diode 30 D30, one end of the resistor 108 R108, and a 5V voltage. The other end of the resistor 108 R108 is connected to The anode of the light emitting diode 32 LED32 is connected, the cathode of the light emitting diode 32 LED32 is respectively connected to the other end of the diode 30 D30, the No. 8 port of the relay 31 K31, and the collector of the transistor 30 Q30, the emitter of the transistor 30 Q30 is respectively connected to one end of the resistor 101 R101 and ground, the other end of the resistor 101 R101 is respectively connected to the base of the transistor 30 Q30 and one end of the resistor 94 R94, the other end of the resistor 94 R94 is respectively connected to the No. 18 pin of U8, the No. 3 port of the relay 31 K31 is connected to the No. 16 pin of U6, the No. 1 port of the relay 32 K32 is respectively connected to one end of the diode 31 D31, one end of the resistor 109 R109, 5 V voltage, the other end of resistor R109 is connected to the anode of light emitting diode LED33, the cathode of light emitting diode LED33 is respectively connected to the other end of diode D31, port 8 of relay K32, and the collector of transistor Q31, the emitter of transistor Q31 is respectively connected to one end of resistor R102 and ground, the other end of resistor R102 is respectively connected to the base of transistor Q31, one end of resistor R95, the other end of resistor R95 is respectively connected to pin 24 of U8, port 3 of relay K32 is connected to pin 22 of U6, port 1 of relay K33 is respectively connected to diode 3 One end of the twelve D32, one end of the resistor one hundred and ten R110, and 5V voltage, the other end of the resistor one hundred and ten R110 is connected to the anode of the light emitting diode thirty-four LED34, the cathode of the light emitting diode thirty-four LED34 is respectively connected to the other end of the diode thirty-two D32, the No. 8 port of the relay thirty-three K33, and the collector of the transistor thirty-two Q32, the emitter of the transistor thirty-two Q32 is respectively connected to one end of the resistor one hundred and three R103 and ground, the other end of the resistor one hundred and three R103 is respectively connected to the base of the transistor thirty-two Q32, one end of the resistor ninety-six R96, the other end of the resistor ninety-six R96 is respectively connected to the No. 30 pin of U8, the No. 3 port of the relay thirty-three K33 is connected to the No. 28 pin of U6,Port 1 of relay 34 K34 is respectively connected to one end of diode 33 D33, one end of resistor 111 R111, and 5V voltage; the other end of resistor 111 R111 is connected to the anode of light emitting diode 35 LED35; the cathode of light emitting diode 35 LED35 is respectively connected to the other end of diode 33 D33, port 8 of relay 34 K34, and the collector of transistor 33 Q33; the emitter of transistor 33 Q33 is respectively connected to one end of resistor 104 R104 and ground; the other end of resistor 104 R104 is respectively connected to the base of transistor 33 Q33 and one end of resistor 97 R97; the other end of resistor 97 R97 is respectively connected to pin 36 of U8; relay 34 K34 is respectively connected to one end of diode 33 D33, one end of resistor 97 R97, the other end of resistor 97 R97 is respectively connected to pin 36 of U8; Port 3 of electrical appliance K34 is connected to pin 34 of U6, port 1 of relay K35 is respectively connected to one end of diode D34, one end of resistor R112 and 5V voltage, the other end of resistor R112 is connected to the anode of light emitting diode LED36, the cathode of light emitting diode LED36 is respectively connected to the other end of diode D34, port 8 of relay K35 and the collector of transistor Q34, the emitter of transistor Q34 is respectively connected to one end of resistor R105 and ground, the other end of resistor R105 is respectively connected to the base of transistor Q34, one end of resistor R98 and the other end of resistor R106. The other end of R98 is connected to pin 40 of U8, port 3 of relay K35 is connected to pin 38 of U6, port 1 of relay K36 is connected to one end of diode D35, one end of resistor R127 and 5V voltage, the other end of resistor R127 is connected to the anode of light emitting diode LED37, the cathode of light emitting diode LED37 is connected to the other end of diode D35, port 8 of relay K36 and the collector of transistor Q35, the emitter of transistor Q35 is connected to one end of resistor R120 and ground, the other end of resistor R120 is connected to transistor The base of Q35, one end of the resistor R113, and the other end of the resistor R113 are connected to the 8th pin of U8 respectively, the 3rd port of the relay K36 is connected to the 6th pin of U6, the 1st port of the relay K37 is connected to one end of the diode D36, one end of the resistor R128, and a 5V voltage respectively, the other end of the resistor R128 is connected to the anode of the light emitting diode LED38, the cathode of the light emitting diode LED38 is connected to the other end of the diode D36, the 8th port of the relay K37, and the collector of the transistor Q36, the emitter of the transistor Q36 is connected to one end of the resistor R121 and ground respectively,The other end of resistor R121 is respectively connected to the base of transistor Q36 and one end of resistor R114. The other end of resistor R114 is respectively connected to pin 14 of U8. Port 3 of relay K37 is connected to pin 12 of U6. Port 1 of relay K38 is respectively connected to one end of diode D37, one end of resistor R129 and 5V voltage. The other end of resistor R129 is connected to the anode of light emitting diode LED39. The cathode of light emitting diode LED39 is respectively connected to the other end of diode D37, port 8 of relay K38 and the collector of transistor Q37. The emitter of 37 is respectively connected to one end of the resistor 122 R122 and ground, the other end of the resistor 122 R122 is respectively connected to the base of the transistor 37 Q37 and one end of the resistor 115 R115, the other end of the resistor 115 R115 is respectively connected to the No. 20 pin of U8, the No. 3 port of the relay K38 is connected to the No. 18 pin of U6, the No. 1 port of the relay K39 is respectively connected to one end of the diode D38, one end of the resistor 130 R130 and a 5V voltage, the other end of the resistor 130 R130 is connected to the anode of the light emitting diode 40 LED40, the cathode of the light emitting diode 40 is respectively connected to the other end of the diode D38 and the No. 8 terminal of the relay K39. The collector of transistor Q38, the emitter of transistor Q38 is connected to one end of resistor R123 and ground respectively, the other end of resistor R123 is connected to the base of transistor Q38 and one end of resistor R116 respectively, the other end of resistor R116 is connected to pin 26 of U8 respectively, port 3 of relay K39 is connected to pin 24 of U6, port 1 of relay K40 is connected to one end of diode D39, one end of resistor R131 and 5V voltage respectively, the other end of resistor R131 is connected to the anode of light emitting diode LED41, the cathode of light emitting diode LED41 is connected to diode The other end of transistor thirty-nine D39, port 8 of relay forty K40, collector of transistor thirty-nine Q39, emitter of transistor thirty-nine Q39 are respectively connected to one end of resistor one twenty-four R124 and ground, the other end of resistor one twenty-four R124 are respectively connected to base of transistor thirty-nine Q39 and one end of resistor one hundred seventeen R117, the other end of resistor one hundred seventeen R117 are respectively connected to pin 32 of U8, port 3 of relay forty K40 is connected to pin 30 of U6, port 1 of relay forty-one K41 is respectively connected to one end of diode forty D40, one end of resistor one thirty-two R132 and 5V voltage, the other end of resistor one thirty-two R132 is connected to anode of light-emitting diode forty-two LED42,The cathode of the light emitting diode 42 LED42 is respectively connected to the other end of the diode 40 D40, the No. 8 port of the relay 41 K41, and the collector of the transistor 40 Q40. The emitter of the transistor 40 Q40 is respectively connected to one end of the resistor 125 R125 and ground. The other end of the resistor 125 R125 is respectively connected to the base of the transistor 40 Q40 and one end of the resistor 118 R118. The other end of the resistor 118 R118 is respectively connected to the No. 38 pin of U8. The No. 3 port of the relay 41 K41 is connected to the No. 36 pin of U6. The relay 4 Port 1 of K42 is respectively connected to one end of diode D41, one end of resistor R133, and 5V voltage; the other end of resistor R133 is connected to the anode of light emitting diode LED43; the cathode of light emitting diode LED43 is respectively connected to the other end of diode D41, port 8 of relay K42, and the collector of transistor Q41; the emitter of transistor Q41 is respectively connected to one end of resistor R126 and ground; the other end of resistor R126 is respectively connected to transistor The base of Q41, one end of resistor R119, and the other end of resistor R119 are connected to pin 42 of U8 respectively. Port 3 of relay K42 is connected to pin 40 of U6. Ports K23 to K42 are combined and connected to one end of resistor R69. The other end of resistor R69 is connected to pin 2 of chip U7 and one end of resistor R71 respectively. The other end of resistor R71 is connected to pin 6 of chip U7 and pin 2 of U8. Pin 3 of chip U7 is connected to one end of resistor R70, the other end of resistor R70 is grounded, pins 4 and 7 of chip U7 are connected to 5V voltage respectively, pin 1 of chip U9 is grounded, pin 2 of chip U9 is connected to one end of capacitor C13, the other end of capacitor C13 is connected to pin 4 of chip U9, pin 5 of chip U9 is connected to 5V voltage and one end of capacitor C16 respectively, the other end of capacitor C16 is grounded, pin 6 of chip U9 is grounded, and pin 8 of chip U9 is connected to 5V voltage.

[0022] In this embodiment, the model of chip 1 U1 to chip 55 and chip 9 U9 is TP7660H, the model of U6 and U8 is EH254V1264P, the model of chip 7 U7 is OP07CP, the model of relay 1 K1 to relay 21 K21, relay 23 K23 to relay 42 K42 is AGQ200, the model of relay 22 K22 is K2SMD, the model of chip 10 U10 is LD1117, the model of connection terminal 1 J1 to connection terminal 3 J3 is Header 5X2, the model of transistor is S8050J3Y, and the model of diode is IN4148.

[0023] An adapter board circuit is provided on the adapter board, and the adapter board circuit includes a test socket SITE1 to a test socket SITE8, a connector HJ1 to a connector HJ8, and port No. 1 of the test socket SITE1 to the test socket SITE8 is respectively connected to port No. 1 and port No. 2 of the connector HJ1 to the connector HJ8, port No. 2 of the test socket SITE1 to the test socket SITE8 is respectively connected to port No. 3 and port No. 4 of the connector HJ1 to the connector HJ8, port No. 3 of the test socket SITE1 to the test socket SITE8 is respectively connected to port No. 5 and port No. 6 of the connector HJ1 to the connector HJ8, port No. 4 of the test socket SITE1 to the test socket SITE8 is respectively grounded, and the test Port No. 5 of test socket SITE1 to test socket SITE8 is respectively connected to port No. 7 and port No. 8 of connector HJ1 to connector HJ8, port No. 6 of test socket SITE1 to test socket SITE8 is respectively connected to port No. 9 and port No. 10 of connector HJ1 to connector HJ8, port No. 7 of test socket SITE1 to test socket SITE8 is respectively connected to port No. 11 and port No. 12 of connector HJ1 to connector HJ8, port No. 8 of test socket SITE1 to test socket SITE8 is respectively connected to port No. 13 and port No. 14 of connector HJ1 to connector HJ8, and port No. 9 of test socket SITE1 to test socket SITE8 is respectively grounded.

[0024] Specifically, port No. 1 of test socket SITE1 is connected to port No. 1 and port No. 2 of connector HJ1, port No. 2 of test socket SITE1 is connected to port No. 3 and port No. 4 of connector HJ1, port No. 3 of test socket SITE1 is connected to port No. 5 and port No. 6 of connector HJ1, port No. 4 of test socket SITE1 is grounded, port No. 5 of test socket SITE1 is connected to port No. 7 and port No. 8 of connector HJ1, port No. 6 of test socket SITE1 is connected to port No. 9 and port No. 10 of connector HJ1, port No. 7 of test socket SITE1 is connected to port No. 11 and port No. 12 of connector HJ1, and port No. 8 of test socket SITE1 is connected to connector Port 13 and 14 of connector 1 HJ1, port 9 of test socket 1 SITE1 is grounded, port 1 of test socket 2 SITE2 is connected to port 1 and port 2 of connector 2 HJ2, port 2 of test socket 2 SITE2 is connected to port 3 and port 4 of connector 2 HJ2, port 3 of test socket 2 SITE2 is connected to port 5 and port 6 of connector 2 HJ2, port 4 of test socket 2 SITE2 is grounded, port 5 of test socket 2 SITE2 is connected to port 7 and port 8 of connector 2 HJ2, port 6 of test socket 2 SITE2 is connected to port 9 and port 10 of connector 2 HJ2, port 7 of test socket 2 SITE2 is connected to Port No. 11 and Port No. 12, Port No. 8 of Test Socket 2 SITE2 is connected to Port No. 13 and Port No. 14 of Connector 2 HJ2, Port No. 9 of Test Socket 2 SITE2 is grounded, Port No. 1 of Test Socket 3 SITE3 is connected to Port No. 1 and Port No. 2 of Connector 3 HJ3, Port No. 2 of Test Socket 3 SITE3 is connected to Port No. 3 and Port No. 4 of Connector 3 HJ3, Port No. 3 of Test Socket 3 SITE3 is connected to Port No. 5 and Port No. 6 of Connector 3 HJ3, Port No. 4 of Test Socket 3 SITE3 is grounded, Port No. 5 of Test Socket 3 SITE3 is connected to Port No. 7 and Port No. 8 of Connector 3 HJ3, Port No. 6 of Test Socket 3 SITE3 is connected to Port No. 9 and Port No. 10, Port No. 7 of test socket three SITE3 is connected to Port No. 11 and Port No. 12 of connector three HJ3, Port No. 8 of test socket three SITE3 is connected to Port No. 13 and Port No. 14 of connector three HJ3, Port No. 9 of test socket three SITE3 is grounded, Port No. 1 of test socket four SITE4 is connected to Port No. 1 and Port No. 2 of connector four HJ4, Port No. 2 of test socket four SITE4 is connected to Port No. 3 and Port No. 4 of connector four HJ4, Port No. 3 of test socket four SITE4 is connected to Port No. 5 and Port No. 6 of connector four HJ4, Port No. 4 of test socket four SITE4 is grounded, Port No. 5 of test socket four SITE4 is connected to Port No. 7 and Port No. 8 of connector four HJ4,Port No. 6 of test socket four SITE4 is connected to port No. 9 and port No. 10 of connector four HJ4, port No. 7 of test socket four SITE4 is connected to port No. 11 and port No. 12 of connector four HJ4, port No. 8 of test socket four SITE4 is connected to port No. 13 and port No. 14 of connector four HJ4, port No. 9 of test socket four SITE4 is grounded, port No. 1 of test socket five SITE5 is connected to port No. 1 and port No. 2 of connector five HJ5, port No. 2 of test socket five SITE5 is connected to port No. 3 and port No. 4 of connector five HJ5, port No. 3 of test socket five SITE5 is connected to port No. 5 and port No. 6 of connector five HJ5, port No. 4 of test socket five SITE5 is grounded, and port No. 1 of test socket five SITE5 is connected to port No. 1 and port No. 2 of connector five HJ5. Port No. 5 of SITE5 is connected to Port No. 7 and Port No. 8 of Connector No. 5 HJ5, Port No. 6 of Test Socket No. 5 SITE5 is connected to Port No. 9 and Port No. 10 of Connector No. 5 HJ5, Port No. 7 of Test Socket No. 5 SITE5 is connected to Port No. 11 and Port No. 12 of Connector No. 5 HJ5, Port No. 8 of Test Socket No. 5 SITE5 is connected to Port No. 13 and Port No. 14 of Connector No. 5 HJ5, Port No. 9 of Test Socket No. 5 SITE5 is grounded, Port No. 1 of Test Socket No. 6 SITE6 is connected to Port No. 1 and Port No. 2 of Connector No. 6 HJ6, Port No. 2 of Test Socket No. 6 SITE6 is connected to Port No. 3 and Port No. 4 of Connector No. 6 HJ6, Port No. 3 of Test Socket No. 6 SITE6 is connected to Port No. 5 of Connector No. 6 HJ6 Port No. 1 and Port No. 6 of test socket SITE6 are connected, Port No. 4 of test socket SITE6 is grounded, Port No. 5 of test socket SITE6 is connected to Port No. 7 and Port No. 8 of connector HJ6, Port No. 6 of test socket SITE6 is connected to Port No. 9 and Port No. 10 of connector HJ6, Port No. 7 of test socket SITE6 is connected to Port No. 11 and Port No. 12 of connector HJ6, Port No. 8 of test socket SITE6 is connected to Port No. 13 and Port No. 14 of connector HJ6, Port No. 9 of test socket SITE6 is grounded, Port No. 1 of test socket SITE7 is connected to Port No. 1 and Port No. 2 of connector HJ7, Port No. 2 of test socket SITE7 is connected to Port No. 3 and Port No. 14 of connector HJ7 Port No. 4, Port No. 3 of test socket SITE7 is connected to Port No. 5 and Port No. 6 of connector HJ7, Port No. 4 of test socket SITE7 is grounded, Port No. 5 of test socket SITE7 is connected to Port No. 7 and Port No. 8 of connector HJ7, Port No. 6 of test socket SITE7 is connected to Port No. 9 and Port No. 10 of connector HJ7, Port No. 7 of test socket SITE7 is connected to Port No. 11 and Port No. 12 of connector HJ7, Port No. 8 of test socket SITE7 is connected to Port No. 13 and Port No. 14 of connector HJ7, Port No. 9 of test socket SITE7 is grounded, Port No. 1 of test socket SITE8 is connected to Port No. 1 and Port No. 2 of connector HJ8,Port 2 of test socket eight SITE8 is connected to port 3 and port 4 of connector eight HJ8, port 3 of test socket eight SITE8 is connected to port 5 and port 6 of connector eight HJ8, port 4 of test socket eight SITE8 is grounded, port 5 of test socket eight SITE8 is connected to port 7 and port 8 of connector eight HJ8, port 6 of test socket eight SITE8 is connected to port 9 and port 10 of connector eight HJ8, port 7 of test socket eight SITE8 is connected to port 11 and port 12 of connector eight HJ8, port 8 of test socket eight SITE8 is connected to port 13 and port 14 of connector eight HJ8, and port 9 of test socket eight SITE8 is grounded.

[0025] In this embodiment, the model of the test socket SITE1 to the test socket SITE8 is DFN6X8, and the model of the connector HJ1 to the connector HJ8 is Header2X32.

[0026] The STM32H745 series is used as the main control module of the microcontroller in this embodiment. The STM32H745 series uses high-performance Arm®Cortex®-M7 and Cortex®M4 32-bit RISC cores. The operating frequency of the Cortex®-M7 core is up to 480MHz, and the operating speed of the Cortex®M4 core is up to 240 MHz. Both cores have a floating point unit (FPU), support Arm® single-precision and double-precision (Cortex®-M7 core) operations and conversions (compliant with IEEE 754), and include a full set of DSP instructions and a memory protection unit (MPU) to enhance the security of the application.

[0027] The ADC measurement unit uses the STM32H745 series sampling channel. It has multiple parameters and functions. The STM32H7 ADC has two clock sources to choose from. It can use the system clock from the AHB bus to synchronize the clock, or it can use the PLL2, PLL3, HSE, HSI or CSI clock asynchronous clock. ADC1, ADC2 and ADC3 share the selected clock 12. The clock source of the ADC uses the AHB clock, and when using the injection mode, the ADC clock cannot exceed one-quarter of the AHB clock at 16-bit, 14-bit, 12-bit or 10-bit resolution. In 8-bit mode, it cannot exceed one-third of the AHB clock. If the AHB clock is selected, the ADC configuration provides options for no division, two-division and four-division 2. Each ADC consists of a 16-bit successive approximation analog-to-digital converter and supports multiple resolution modes, including but not limited to 16-bit, 14-bit, 12-bit and 10-bit 3. Each ADC supports up to 20 multiplexed channels, which can perform A / D conversion in single, continuous, scan or discontinuous sampling mode 3. The result of the ADC is stored in a left-aligned or right-aligned 32-bit data register3. The ADC has an analog watchdog feature that allows the application to detect whether the input voltage exceeds the upper or lower threshold defined by the user3. The internal reference voltage VrefInt, the internal temperature sensor, and the VBAT monitoring channel VBAT / 4 are connected to the ADC3. In addition, the internal DAC channels 1 and 2 are connected to the ADC21. The ADC supports external triggering, with a total of 21 triggers for regular channels, and the injection channel also has corresponding trigger settings1. The ADC supports DMA requests, which can achieve high-speed data transmission and reduce the burden on the CPU1. The ADC adopts an efficient low-power mode to achieve extremely low power consumption at low frequencies.

[0028] In this embodiment, the relay uses 5V double-pole double-throw to switch different pins of the chip. The current source uses a series resistor to obtain the corresponding current. The voltage source uses the output voltage of the IO pin of the single-chip microcomputer (range 0~5V). The switch uses TL-SF1010P for data exchange and transmission. The adapter board is used to measure the adapter carrier of chips with different pins.

[0029] The method of the chip open and short circuit automatic detection device in this embodiment includes the following steps: S1, the MCU main control module receives the command signal from the host computer and sends a command to open a relay according to the command signal; S2, the corresponding relay switching module receives the instruction and the switching module starts working; S3, current is injected into a pin of the chip under test; S4, the test channel of the ADC measurement unit samples the current of the pin of the chip to be tested; S5, the MCU main control module obtains the sampling results and uploads them to the host computer; S6, the host computer receives the sampling result, determines whether the pin of the chip to be tested is qualified, and distinguishes good products from defective products; S6, the host computer transmits the test BIN information results to the sorting machine according to the GPIB communication protocol; S7, the sorting machine sorts the good and bad chips, collects and processes the bad chips, and proceeds to step S8 for the good chips; S8, repeating steps S1 to S7 until all pins of the chip to be tested are tested.

[0030] In the present invention, the single chip microcomputer directly controls the on and off of the relay through IO. The single chip microcomputer sends a signal, the relay switching module starts to work, and the chip pins are connected to the current in sequence. The single chip microcomputer directly controls the relay, and simplifies the circuit and control logic.

Claims

1. A chip open and short circuit automatic detection device, comprising a single chip microcomputer main control module and an ADC measurement unit, characterized in that: One end of the single-chip computer main control module (1) is connected to the switch data transmission module (2), the switch data transmission module (2) is connected to the operation display screen (3), the other end of the single-chip computer main control module (1) is connected to the ADC measurement unit (4), the test channel (5) of the ADC measurement unit (4) is provided with a relay switching module (6), the relay switching module (6) is connected to the single-chip computer main control module (1), and the test channel (5) is connected to the chip to be tested (8) through an adapter board (7).

2. The chip open and short circuit automatic detection device according to claim 1, characterized in that: The circuit of the relay switching module includes several chips and relays. Pin 1 of chip 1 (U1) is grounded, pin 2 of chip 1 (U1) is connected to one end of capacitor 1 (C1), the other end of capacitor 1 (C1) is connected to pin 4 of chip 1 (U1), pin 3 of chip 1 (U1) is grounded, pin 5 of chip 1 (U1) is respectively connected to one end of capacitor 6 (C6) and one end of resistor 1 (R1), the other end of capacitor 6 (C6) is grounded, the other end of resistor 1 (R1) is connected to port 10 of terminal 1 (P1), pin 6 of chip 1 (U1) is grounded, pin 8 of chip 1 (U1) is connected to pin 47 of chip 6 (U6) and pin 47 of chip 8 (U8), and the chip 1 (U1) is grounded. Pin 1 of chip 2 (U2) is grounded, pin 2 of chip 2 (U2) is connected to one end of capacitor 2 (C2), the other end of capacitor 2 (C2) is connected to pin 4 of chip 2 (U2), pin 3 of chip 2 (U2) is grounded, pin 5 of chip 2 (U2) is connected to one end of capacitor 7 (C7) and one end of resistor 2 (R2), the other end of capacitor 7 (C7) is grounded, the other end of resistor 2 (R2) is connected to port 6 of terminal 1 (P1), pin 6 of chip 2 (U2) is grounded, pin 8 of chip 2 (U2) is connected to pin 43 of chip 6 (U6) and pin 43 of chip 8 (U8), pin 1 of chip 3 (U3) is grounded, pin 2 of chip 3 (U3) is connected to Connect one end of capacitor three (C3), the other end of capacitor three (C3) is connected to pin 4 of chip three (U3), pin 3 of chip three (U3) is grounded, pin 5 of chip three (U3) is connected to one end of capacitor eight (C8) and one end of resistor three (R3), the other end of capacitor eight (C8) is grounded, the other end of resistor three (R3) is connected to port 4 of terminal one (P1), pin 6 of chip three (U3) is grounded, pin 8 of chip three (U3) is connected to pin 46 of chip six (U6) and pin 46 of chip eight (U8), pin 1 of chip four (U4) is grounded, pin 2 of chip four (U4) is connected to one end of capacitor four (C4), the other end of capacitor four (C4) is connected to chip Pin 4 of chip four (U4) and pin 3 of chip four (U4) are grounded, pin 5 of chip four (U4) are connected to one end of capacitor nine (C9) and one end of resistor four (R4) respectively, the other end of capacitor nine (C9) is grounded, the other end of resistor four (R4) is connected to port 2 of terminal block one (P1), pin 6 of chip four (U4) is grounded, pin 8 of chip four (U4) is connected to pin 44 of chip six (U6) and pin 44 of chip eight (U8), pin 1 of chip five (U5) is grounded, pin 2 of chip five (U5) is connected to one end of capacitor five (C5), the other end of capacitor five (C5) is connected to pin 4 of chip five (U5), and pin 3 of chip five (U5) is grounded.Pin 5 of chip five (U5) is connected to one end of capacitor ten (C10) and one end of resistor five (R5), the other end of capacitor ten (C10) is grounded, the other end of resistor five (R5) is connected to port 8 of terminal block one (P1), pin 6 of chip five (U5) is grounded, pin 8 of chip five (U5) is connected to pin 45 of chip six (U6) and pin 45 of chip eight (U8), port 1 of relay one (K1) is connected to one end of diode one (D1), one end of resistor twenty (R20) and 5V voltage, the other end of resistor twenty (R20) is connected to the anode of light-emitting diode one (LED1), and the cathode of light-emitting diode one (LED1) is connected to the other end of diode one (D1). , port 8 of relay one (K1), the collector of transistor one (Q1), the emitter of transistor one (Q1) are connected to one end of resistor seven (R7) and ground respectively, the other end of resistor seven (R7) are connected to the base of transistor one (Q1) and one end of resistor six (R6), the other end of resistor six (R6) are connected to pin 48 of chip six (U6) and pin 48 of chip eight (U8), port 2 of relay one (K1) is grounded, port 3 of relay one (K1) is connected to ports 1, 3, 5, 7, and 9 of connection terminal one (J1), ports 1, 3, 5, 7, and 9 of connection terminal two (J2), and ports 1, 3, 5, 7, and 9 of connection terminal three (J3). Port No. 1 of relay 2 (K2), ports No. 1, 3, 5, 7, and 9 of connection terminal 4 (J4), port No. 1 of relay 2 (K2) is connected to one end of diode 2 (D2), one end of resistor 21 (R21), and 5V voltage respectively, the other end of resistor 21 (R21) is connected to the anode of light emitting diode 2 (LED2), the cathode of light emitting diode 2 (LED2) is connected to the other end of diode 2 (D2), port No. 8 of relay 2 (K2), the collector of transistor 2 (Q2), the emitter of transistor 2 (Q2) is connected to one end of resistor 14 (R14) and ground respectively, the other end of resistor 14 (R14) is connected to the base of transistor 2 (Q2), one end of resistor 8 (R8), resistor 8 (R8 ) are connected to pin 1 of chip eight (U8), port 2 of relay two (K2) is connected to port 2 of connection terminal one (J1), port 3 of relay two (K2) is connected to pin 1 of chip six (U6), port 4 of relay two (K2) is connected to port 9 of connection terminal one (P1), port 1 of relay three (K3) is connected to one end of diode three (D3), one end of resistor twenty-two (R22), and 5V voltage, the other end of resistor twenty-two (R22) is connected to the anode of light-emitting diode three (LED3), the cathode of light-emitting diode three (LED3) is connected to the other end of diode three (D3), port 8 of relay three (K3), and the collector of transistor three (Q3), respectively.The emitter of transistor three (Q3) is connected to one end of resistor fifteen (R15) and ground respectively, the other end of resistor fifteen (R15) is connected to the base of transistor three (Q3) and one end of resistor nine (R9), the other end of resistor nine (R9) is connected to pin 7 of chip eight (U8), port 2 of relay three (K3) is connected to port 8 of connection terminal one (J1), port 3 of relay three (K3) is connected to pin 7 of chip six (U6), port 4 of relay three (K3) is connected to port 9 of connection terminal one (P1), port 1 of relay four (K4) is connected to one end of diode four (D4), one end of resistor twenty-three (R23) and 5V voltage respectively, the other end of resistor twenty-three (R23) is connected to pin 7 of chip eight (U8), port 2 of relay three (K3) is connected to port 8 of connection terminal one (J1), port 3 of relay three (K3) is connected to pin 7 of chip six (U6), port 4 of relay three (K3) is connected to port 9 of connection terminal one (P1), port 1 of relay four (K4) is connected to one end of diode four (D4), one end of resistor twenty-three (R23) and 5V voltage respectively. One end is connected to the anode of light emitting diode four (LED4), the cathode of light emitting diode four (LED4) is respectively connected to the other end of diode four (D4), port 8 of relay four (K4), and the collector of transistor four (Q4), the emitter of transistor four (Q4) is respectively connected to one end of resistor sixteen (R16) and ground, the other end of resistor sixteen (R16) is respectively connected to the base of transistor four (Q4) and one end of resistor ten (R10), the other end of resistor ten (R10) is respectively connected to pin 13 of chip eight (U8), port 2 of relay four (K4) is connected to port 4 of connection terminal one (J1), port 3 of relay four (K4) is connected to pin 13 of chip six (U6), relay four (K4) ) is connected to port 9 of terminal 1 (P1), port 1 of relay 5 (K5) is connected to one end of diode 5 (D5), one end of resistor 24 (R24) and 5V voltage respectively, the other end of resistor 24 (R24) is connected to the anode of light emitting diode 5 (LED5), the cathode of light emitting diode 5 (LED5) is connected to the other end of diode 5 (D5), port 8 of relay 5 (K5) and the collector of transistor 5 (Q5), the emitter of transistor 5 (Q5) is connected to one end of resistor 17 (R17) and ground respectively, the other end of resistor 17 (R17) is connected to the base of transistor 5 (Q5), one end of resistor 11 (R11), the other end of resistor 11 (R11) is connected to the base of transistor 5 (Q5), one end of resistor 11 (R11) and the other end of resistor 11 (R11) The ends are connected to pin 19 of chip eight (U8), port 2 of relay five (K5) is connected to port 10 of connection terminal two (J2), port 3 of relay five (K5) is connected to pin 19 of chip six (U6), port 4 of relay five (K5) is connected to port 9 of connection terminal one (P1), port 1 of relay six (K6) is connected to one end of diode six (D6), one end of resistor twenty-five (R25), and 5V voltage, the other end of resistor twenty-five (R25) is connected to the anode of light-emitting diode six (LED6), and the cathode of light-emitting diode six (LED6) is connected to the other end of diode six (D6), port 8 of relay six (K6), and the collector of transistor six (Q6).The emitter of transistor six (Q6) is connected to one end of resistor eighteen (R18) and ground respectively, the other end of resistor eighteen (R18) is connected to the base of transistor six (Q6) and one end of resistor twelve (R12), the other end of resistor twelve (R12) is connected to pin 25 of chip eight (U8), port 2 of relay six (K6) is connected to port 6 of connection terminal three (J3), port 3 of relay six (K6) is connected to pin 25 of chip six (U6), port 4 of relay six (K6) is connected to port 9 of connection terminal one (P1), port 1 of relay seven (K7) is connected to one end of diode seven (D7), one end of resistor twenty-six (R26) and 5V voltage respectively, resistor twenty-six (R2 6) is connected to the anode of light emitting diode seven (LED7), the cathode of light emitting diode seven (LED7) is respectively connected to the other end of diode seven (D7), port 8 of relay seven (K7), and the collector of transistor seven (Q7), the emitter of transistor seven (Q7) is respectively connected to one end of resistor nineteen (R19) and ground, the other end of resistor nineteen (R19) is respectively connected to the base of transistor seven (Q7) and one end of resistor thirteen (R13), the other end of resistor thirteen (R13) is respectively connected to pin 31 of chip eight (U8), port 2 of relay seven (K7) is connected to port 2 of connection terminal four (J4), port 3 of relay seven (K7) is connected to pin 31 of chip six (U6), relay Port No. 4 of relay K7 is connected to port No. 9 of terminal block P1, port No. 1 of relay K8 is respectively connected to one end of diode D8, one end of resistor R41 and 5V voltage, the other end of resistor R41 is connected to the anode of light emitting diode LED8, the cathode of light emitting diode LED8 is respectively connected to the other end of diode D8, port No. 8 of relay K8 and the collector of transistor Q8, the emitter of transistor Q8 is respectively connected to one end of resistor R34 and ground, the other end of resistor R34 is respectively connected to the base of transistor Q8 and one end of resistor R27, resistor R27 is respectively connected to the base of transistor Q8 and one end of resistor R37. The other end of 27 is connected to the No. 3 pin of chip eight (U8), the No. 2 port of relay eight (K8) is connected to the No. 4 port of connection terminal one (J1), the No. 3 port of relay eight (K8) is connected to the No. 3 pin of chip six (U6), the No. 4 port of relay eight (K8) is connected to the No. 9 port of connection terminal one (P1), the No. 1 port of relay nine (K9) is connected to one end of diode nine (D9), one end of resistor forty-two (R42), and 5V voltage, the other end of resistor forty-two (R42) is connected to the anode of light-emitting diode nine (LED9), the cathode of light-emitting diode nine (LED9) is connected to the other end of diode nine (D9), the No. 8 port of relay nine (K9), and the collector of transistor nine (Q9), respectively.The emitter of transistor nine (Q9) is connected to one end of resistor thirty-five (R35) and ground respectively, the other end of resistor thirty-five (R35) is connected to the base of transistor nine (Q9) and one end of resistor twenty-eight (R28) respectively, the other end of resistor twenty-eight (R28) is connected to pin 9 of chip eight (U8), port 2 of relay nine (K9) is connected to port 10 of connection terminal one (J1), port 3 of relay nine (K9) is connected to pin 9 of chip six (U6), port 4 of relay nine (K9) is connected to port 9 of connection terminal one (P1), port 1 of relay ten (K10) is connected to one end of diode ten (D10), one end of resistor forty-three (R43) and 5V voltage respectively, The other end of resistor forty-three (R43) is connected to the anode of light-emitting diode ten (LED10), the cathode of light-emitting diode ten (LED10) is respectively connected to the other end of diode ten (D10), port 8 of relay ten (K10), and the collector of transistor ten (Q10), the emitter of transistor ten (Q10) is respectively connected to one end of resistor thirty-six (R36) and ground, the other end of resistor thirty-six (R36) is respectively connected to the base of transistor ten (Q10), one end of resistor twenty-nine (R29), the other end of resistor twenty-nine (R29) is respectively connected to pin 15 of chip eight (U8), port 2 of relay ten (K10) is connected to port 6 of connection terminal two (J2), and the emitter of relay ten (K10) is respectively connected to one end of resistor thirty-six (R36) and ground. Port 3 is connected to pin 15 of chip six (U6), port 4 of relay ten (K10) is connected to port 9 of terminal one (P1), port 1 of relay eleven (K11) is connected to one end of diode eleven (D11), one end of resistor forty-four (R44), and 5V voltage respectively, the other end of resistor forty-four (R44) is connected to the anode of light-emitting diode eleven (LED11), the cathode of light-emitting diode eleven (LED11) is connected to the other end of diode eleven (D11), port 8 of relay eleven (K11), and the collector of transistor eleven (Q11), the emitter of transistor eleven (Q11) is connected to one end of resistor thirty-seven (R37) and ground respectively, resistor thirty-seven (R37) ) are connected to the base of transistor 11 (Q11) and one end of resistor 30 (R30), the other end of resistor 30 (R30) is connected to pin 21 of chip 8 (U8), port 2 of relay 11 (K11) is connected to port 2 of connection terminal 3 (J3), port 3 of relay 11 (K11) is connected to pin 21 of chip 6 (U6), port 4 of relay 11 (K11) is connected to port 9 of connection terminal 1 (P1), port 1 of relay 12 (K12) is connected to one end of diode 12 (D12), one end of resistor 45 (R45) and 5V voltage, the other end of resistor 45 (R45) is connected to the anode of light emitting diode 12 (LED12),The cathode of light emitting diode 12 (LED12) is respectively connected to the other end of diode 12 (D12), port 8 of relay 12 (K12), and the collector of transistor 12 (Q12). The emitter of transistor 12 (Q12) is respectively connected to one end of resistor 38 (R38) and ground. The other end of resistor 38 (R38) is respectively connected to the base of transistor 12 (Q12) and one end of resistor 31 (R31). The other end of resistor 31 (R31) is respectively connected to pin 27 of chip 8 (U8). Port 2 of relay 12 (K12) is connected to port 8 of connection terminal 3 (J3). Port 3 of relay 12 (K12) is connected to pin 27 of chip 6 (U6). Port 4 of (K12) is connected to port 9 of terminal block 1 (P1), port 1 of relay 13 (K13) is respectively connected to one end of diode 13 (D13), one end of resistor 46 (R46), and 5V voltage, the other end of resistor 46 (R46) is connected to the anode of light emitting diode 13 (LED13), the cathode of light emitting diode 13 (LED13) is respectively connected to the other end of diode 13 (D13), port 8 of relay 13 (K13), and the collector of transistor 13 (Q13), the emitter of transistor 13 (Q13) is respectively connected to one end of resistor 39 (R39) and ground, the other end of resistor 39 (R39) is respectively connected to the base of transistor 13 (Q13), resistor One end of resistor 32 (R32) and the other end of resistor 32 (R32) are respectively connected to pin 33 of chip 8 (U8), port 2 of relay 13 (K13) is connected to port 4 of connection terminal 4 (J4), port 3 of relay 13 (K13) is connected to pin 33 of chip 6 (U6), port 4 of relay 13 (K13) is connected to port 9 of connection terminal 1 (P1), port 1 of relay 14 (K14) is respectively connected to one end of diode 14 (D14), one end of resistor 47 (R47) and 5V voltage, the other end of resistor 47 (R47) is connected to the anode of light emitting diode 14 (LED14), and the cathode of light emitting diode 14 (LED14) is respectively connected to diode The other end of fourteen (D14), the No. 8 port of relay fourteen (K14), the collector of transistor fourteen (Q14), and the emitter of transistor fourteen (Q14) are respectively connected to one end of resistor forty (R40) and ground, the other end of resistor forty (R40) is respectively connected to the base of transistor fourteen (Q14) and one end of resistor thirty-three (R33), the other end of resistor thirty-three (R33) is respectively connected to pin 37 of chip eight (U8), the No. 2 port of relay fourteen (K14) is connected to the No. 8 port of connection terminal four (J4), the No. 3 port of relay fourteen (K14) is connected to the No. 37 pin of chip six (U6), the No. 4 port of relay fourteen (K14) is connected to the No. 9 port of connection terminal one (P1),Port 1 of relay 15 (K15) is respectively connected to one end of diode 15 (D15), one end of resistor 62 (R62), and 5V voltage, the other end of resistor 62 (R62) is connected to the anode of light emitting diode 15 (LED15), the cathode of light emitting diode 15 (LED15) is respectively connected to the other end of diode 15 (D15), port 8 of relay 15 (K15), and the collector of transistor 15 (Q15), the emitter of transistor 15 (Q15) is respectively connected to one end of resistor 55 (R55) and ground, the other end of resistor 55 (R55) is respectively connected to the base of transistor 15 (Q15), one end of resistor 48 (R48), the other end of resistor 48 (R48) is respectively connected to the base of transistor 15 (Q15), one end of resistor 55 (R55), and the other end of resistor 55 (R55) is respectively connected to the base of transistor 15 (Q15), one end of resistor 48 (R48), and the other end of resistor 48 (R48) is respectively connected to the base of transistor 15 (Q15). One end is connected to the No. 5 pin of chip eight (U8), the No. 2 port of relay fifteen (K15) is connected to the No. 6 port of connection terminal one (J1), the No. 3 port of relay fifteen (K15) is connected to the No. 5 pin of chip six (U6), the No. 4 port of relay fifteen (K15) is connected to the No. 9 port of connection terminal one (P1), the No. 1 port of relay sixteen (K16) is connected to one end of diode sixteen (D16), one end of resistor sixty-three (R63), and 5V voltage, the other end of resistor sixty-three (R63) is connected to the anode of light-emitting diode sixteen (LED16), the cathode of light-emitting diode sixteen (LED16) is connected to the other end of diode sixteen (D16), the Port 8, the collector of transistor 16 (Q16), and the emitter of transistor 16 (Q16) are connected to one end of resistor 56 (R56) and ground respectively, the other end of resistor 56 (R56) is connected to the base of transistor 16 (Q16) and one end of resistor 49 (R49), and the other end of resistor 49 (R49) is connected to pin 11 of chip 8 (U8), port 2 of relay 16 (K16) is connected to port 2 of connection terminal 2 (J2), port 3 of relay 16 (K16) is connected to pin 11 of chip 6 (U6), port 4 of relay 16 (K16) is connected to port 9 of connection terminal 1 (P1), and port 1 of relay 17 (K17) is connected to pin 11 of chip 6 (U6). Connect one end of diode seventeen (D17), one end of resistor sixty-four (R64), and 5V voltage. The other end of resistor sixty-four (R64) is connected to the anode of light-emitting diode seventeen (LED17). The cathode of light-emitting diode seventeen (LED17) is respectively connected to the other end of diode seventeen (D17), port 8 of relay seventeen (K17), and the collector of transistor seventeen (Q17). The emitter of transistor seventeen (Q17) is respectively connected to one end of resistor fifty-seven (R57) and ground. The other end of resistor fifty-seven (R57) is respectively connected to the base of transistor seventeen (Q17) and one end of resistor fifty (R50). The other end of resistor fifty (R50) is respectively connected to pin 17 of chip eight (U8).Port 2 of relay 17 (K17) is connected to port 8 of connection terminal 2 (J2), port 3 of relay 17 (K17) is connected to pin 17 of chip 6 (U6), port 4 of relay 17 (K17) is connected to port 9 of connection terminal 1 (P1), port 1 of relay 18 (K18) is respectively connected to one end of diode 18 (D18), one end of resistor 65 (R65), and 5V voltage, the other end of resistor 65 (R65) is connected to the anode of light emitting diode 18 (LED18), and the cathode of light emitting diode 18 (LED18) is respectively connected to the other end of diode 18 (D18), port 8 of relay 18 (K18), and transistor 18 (Q18). ), the emitter of transistor 18 (Q18) is connected to one end of resistor 58 (R58) and ground respectively, the other end of resistor 58 (R58) is connected to the base of transistor 18 (Q18) and one end of resistor 51 (R51), the other end of resistor 51 (R51) is connected to pin 23 of chip 8 (U8), port 2 of relay 18 (K18) is connected to port 4 of connection terminal 3 (J3), port 3 of relay 18 (K18) is connected to pin 23 of chip 6 (U6), port 4 of relay 18 (K18) is connected to port 9 of connection terminal 1 (P1), port 1 of relay 19 (K19) is connected to diode 19 (D19) respectively. One end of resistor sixty-six (R66), 5V voltage, the other end of resistor sixty-six (R66) is connected to the anode of light-emitting diode nineteen (LED19), the cathode of light-emitting diode nineteen (LED19) is respectively connected to the other end of diode nineteen (D19), port 8 of relay nineteen (K19), collector of transistor nineteen (Q19), emitter of transistor nineteen (Q19) is respectively connected to one end of resistor fifty-nine (R59) and ground, the other end of resistor fifty-nine (R59) is respectively connected to the base of transistor nineteen (Q19), one end of resistor fifty-two (R52), the other end of resistor fifty-two (R52) is respectively connected to pin 29 of chip eight (U8), relay nineteen ( The No. 2 port of relay K19 is connected to the No. 10 port of terminal three (J3), the No. 3 port of relay nineteen (K19) is connected to the No. 29 pin of chip six (U6), the No. 4 port of relay nineteen (K19) is connected to the No. 9 port of terminal one (P1), the No. 1 port of relay twenty (K20) is respectively connected to one end of diode twenty (D20), one end of resistor sixty-seven (R67), and 5V voltage, the other end of resistor sixty-seven (R67) is connected to the anode of light-emitting diode twenty (LED20), the cathode of light-emitting diode twenty (LED20) is respectively connected to the other end of diode twenty (D20), the No. 8 port of relay twenty (K20), and the collector of transistor twenty (Q20),The emitter of transistor 20 (Q20) is connected to one end of resistor 60 (R60) and ground respectively, the other end of resistor 60 (R60) is connected to the base of transistor 20 (Q20) and one end of resistor 53 (R53), the other end of resistor 53 (R53) is connected to pin 35 of chip 8 (U8), port 2 of relay 20 (K20) is connected to port 6 of connection terminal 4 (J4), port 3 of relay 20 (K20) is connected to pin 35 of chip 6 (U6), port 4 of relay 20 (K20) is connected to port 9 of connection terminal 1 (P1), port 1 of relay 21 (K21) is connected to diode 2 One end of diode 11 (D21), one end of resistor 68 (R68), and 5V voltage, the other end of resistor 68 (R68) is connected to the anode of light emitting diode 21 (LED21), the cathode of light emitting diode 21 (LED21) is respectively connected to the other end of diode 21 (D21), port 8 of relay 21 (K21), and the collector of transistor 21 (Q21), the emitter of transistor 21 (Q21) is respectively connected to one end of resistor 61 (R61) and ground, the other end of resistor 61 (R61) is respectively connected to the base of transistor 21 (Q21), one end of resistor 54 (R54), the other end of resistor 54 (R54) is respectively connected to the base of transistor 21 (Q21), one end of resistor 54 (R54), and the other end of resistor 54 (R54) is respectively connected to the base of transistor 21 (Q21). One end is connected to pin 39 of chip eight (U8), port 2 of relay 21 (K21) is connected to port 10 of connection terminal four (J4), port 3 of relay 21 (K21) is connected to pin 39 of chip six (U6), port 4 of relay 21 (K21) is connected to port 9 of connection terminal one (P1), port 1 of relay 22 (K22) is connected to 5V voltage and one end of resistor 72 (R72), the other end of resistor 72 (R72) is connected to the anode of light-emitting diode 22 (LED22), the cathode of light-emitting diode 22 (LED22) is grounded, port 2 of relay 22 (K22) is connected to pin 39 of chip six (U6), port 4 of relay 21 (K21) is connected to port 9 of connection terminal one (P1), port 1 of relay 22 (K22) is connected to 5V voltage and one end of resistor 72 (R72), the other end of resistor 72 (R72) is connected to the anode of light-emitting diode 22 (LED22), the cathode of light-emitting diode 22 (LED22) is grounded, and port 2 of relay 22 (K22) is connected to pin 39 of chip six (U6), port 4 of relay 21 (K21) is connected to port 9 of connection terminal one (P1), Respectively connect one end of resistor seventy-three (R73), one end of capacitor eleven (C11), one end of capacitor twelve (C12), pin 4 of chip ten (U10), one end of capacitor fourteen (C14), and pin 2 of chip ten (U10); the other end of resistor seventy-three (R73) is connected to the anode of light-emitting diode twenty-three (LED23); the cathode of light-emitting diode twenty-three (LED23) is grounded; the other end of capacitor eleven (C11) is grounded; the other end of capacitor twelve (C12) is grounded; the other end of capacitor fourteen (C14) is grounded; pin 1 of chip ten (U10) is grounded; pin 3 of chip ten (U10) is respectively connected to one end of capacitor fifteen (C15) and port 1 of the DC plug (DC); the other end of capacitor fifteen (C15) is grounded.Port 1 of relay 23 (K23) is respectively connected to one end of diode 22 (D22), one end of resistor 86 (R86), and 5V voltage; the other end of resistor 86 (R86) is connected to the anode of light emitting diode 24 (LED24); the cathode of light emitting diode 24 (LED24) is respectively connected to the other end of diode 22 (D22), port 8 of relay 23 (K23), and the collector of transistor 22 (Q22); the emitter of transistor 22 (Q22) is respectively connected to one end of resistor 80 (R80) and ground; the other end of resistor 80 (R80) is respectively connected to the base of transistor 22 (Q22) and one end of resistor 74 (R74); The other end of resistor seventy-four (R74) is connected to pin 4 of chip eight (U8), port 3 of relay twenty-three (K23) is connected to pin 2 of chip six (U6), port 1 of relay twenty-four (K24) is connected to one end of diode twenty-three (D23), one end of resistor eighty-seven (R87), and 5V voltage, the other end of resistor eighty-seven (R87) is connected to the anode of light-emitting diode twenty-five (LED25), the cathode of light-emitting diode twenty-five (LED25) is connected to the other end of diode twenty-three (D23), port 8 of relay twenty-four (K24), and the collector of transistor twenty-three (Q23), and the emitter of transistor twenty-three (Q23) is connected to resistor eight. One end of resistor 11 (R81) is connected to ground, the other end of resistor 81 (R81) is connected to the base of transistor 23 (Q23) and one end of resistor 75 (R75), the other end of resistor 75 (R75) is connected to pin 10 of chip 8 (U8), port 3 of relay 24 (K24) is connected to pin 8 of chip 6 (U6), port 1 of relay 25 (K25) is connected to one end of diode 24 (D24), one end of resistor 88 (R88) and 5V voltage, the other end of resistor 88 (R88) is connected to the anode of light emitting diode 26 (LED26), the cathode of light emitting diode 26 (LED26) is connected to diode 24 ( The other end of diode D24, the 8th port of relay 25 (K25), the collector of transistor 24 (Q24), the emitter of transistor 24 (Q24) is connected to one end of resistor 82 (R82) and ground respectively, the other end of resistor 82 (R82) is connected to the base of transistor 24 (Q24) and one end of resistor 76 (R76), the other end of resistor 76 (R76) is connected to pin 16 of chip 8 (U8), the 3rd port of relay 25 (K25) is connected to pin 14 of chip 6 (U6), the 1st port of relay 26 (K26) is connected to one end of diode 25 (D25), one end of resistor 89 (R89) and 5V voltage respectively,The other end of resistor eighty-nine (R89) is connected to the anode of light-emitting diode twenty-seven (LED27), the cathode of light-emitting diode twenty-seven (LED27) is respectively connected to the other end of diode twenty-five (D25), port 8 of relay twenty-six (K26), and the collector of transistor twenty-five (Q25), the emitter of transistor twenty-five (Q25) is respectively connected to one end of resistor eighty-three (R83) and ground, the other end of resistor eighty-three (R83) is respectively connected to the base of transistor twenty-five (Q25), one end of resistor seventy-seven (R77), the other end of resistor seventy-seven (R77) is respectively connected to pin 22 of chip eight (U8), port 3 of relay twenty-six (K26) is connected to Connect to pin 20 of chip six (U6), port 1 of relay twenty-seven (K27) is connected to one end of diode twenty-six (D26), one end of resistor ninety (R90), and 5V voltage respectively, the other end of resistor ninety (R90) is connected to the anode of light-emitting diode twenty-eight (LED28), the cathode of light-emitting diode twenty-eight (LED28) is connected to the other end of diode twenty-six (D26), port 8 of relay twenty-seven (K27), and the collector of transistor twenty-six (Q26), the emitter of transistor twenty-six (Q26) is connected to one end of resistor eighty-four (R84) and ground respectively, the other end of resistor eighty-four (R84) is connected to transistor twenty-six (Q26) The base of the chip 8 (U8) and one end of the resistor 78 (R78) are connected to the 28th pin of the chip 8 (U8). The 3rd port of the relay 26 (K26) is connected to the 26th pin of the chip 6 (U6). The 1st port of the relay 27 (K27) is connected to one end of the diode 26 (D26), one end of the resistor 90 (R90) and the 5V voltage. The other end of the resistor 90 (R90) is connected to the anode of the light-emitting diode 28 (LED28). The cathode of the light-emitting diode 28 (LED28) is connected to the other end of the diode 26 (D26), the 8th port of the relay 27 (K27) and the collector of the transistor 26 (Q26). The emitter of transistor 26 (Q26) is connected to one end of resistor 84 (R84) and ground respectively, the other end of resistor 84 (R84) is connected to the base of transistor 26 (Q26) and one end of resistor 78 (R78) respectively, the other end of resistor 78 (R78) is connected to pin 28 of chip 8 (U8), port 3 of relay 27 (K27) is connected to pin 26 of chip 6 (U6), port 1 of relay 28 (K28) is connected to one end of diode 27 (D27), one end of resistor 91 (R91) and 5V voltage respectively, the other end of resistor 91 (R91) is connected to the anode of light emitting diode 29 (LED29),The cathode of light emitting diode 29 (LED29) is respectively connected to the other end of diode 27 (D27), port 8 of relay 28 (K28), and the collector of transistor 27 (Q27); the emitter of transistor 27 (Q27) is respectively connected to one end of resistor 85 (R85) and ground; the other end of resistor 85 (R85) is respectively connected to the base of transistor 27 (Q27) and one end of resistor 79 (R79); the other end of resistor 79 (R79) is respectively connected to pin 34 of chip 8 (U8); port 3 of relay 28 (K28) is connected to pin 32 of chip 6 (U6); port 1 of relay 29 (K29) is respectively connected to diode 28 (D2 8), one end of resistor 106 (R106), 5V voltage, the other end of resistor 106 (R106) is connected to the anode of light emitting diode 30 (LED30), the cathode of light emitting diode 30 (LED30) is respectively connected to the other end of diode 28 (D28), port 8 of relay 29 (K29), collector of transistor 28 (Q28), emitter of transistor 28 (Q28) is respectively connected to one end of resistor 99 (R99) and ground, the other end of resistor 99 (R99) is respectively connected to the base of transistor 28 (Q28), one end of resistor 92 (R92), the other end of resistor 92 (R92) is respectively connected to pin 6 of chip 8 (U8), relay The No. 3 port of the diode 29 (K29) is connected to the No. 4 pin of the chip 6 (U6), the No. 1 port of the relay 30 (K30) is respectively connected to one end of the diode 29 (D29), one end of the resistor 107 (R107), and a 5V voltage, the other end of the resistor 107 (R107) is connected to the anode of the light emitting diode 31 (LED31), the cathode of the light emitting diode 31 (LED31) is respectively connected to the other end of the diode 29 (D29), the No. 8 port of the relay 30 (K30), and the collector of the transistor 29 (Q29), the emitter of the transistor 29 (Q29) is respectively connected to one end of the resistor 100 (R100) and ground, the other end of the resistor 100 (R100) is respectively connected to the transistor 2 The base of Q29, one end of resistor R93, and the other end of resistor R93 are connected to pin 12 of chip U8, port 3 of relay K30 is connected to pin 10 of chip U6, port 1 of relay K31 is connected to one end of diode D30, one end of resistor R108, and 5V voltage, the other end of resistor R108 is connected to the anode of light emitting diode LED32, and the cathode of light emitting diode LED32 is connected to the other end of diode D30, port 8 of relay K31, and the collector of transistor Q30.The emitter of transistor 30 (Q30) is connected to one end of resistor 101 (R101) and ground respectively, the other end of resistor 101 (R101) is connected to the base of transistor 30 (Q30) and one end of resistor 94 (R94), the other end of resistor 94 (R94) is connected to pin 18 of chip 8 (U8), port 3 of relay 31 (K31) is connected to pin 16 of chip 6 (U6), port 1 of relay 32 (K32) is connected to one end of diode 31 (D31), one end of resistor 109 (R109) and 5V voltage respectively, the other end of resistor 109 (R109) is connected to the anode of light emitting diode 33 (LED33), and the light emitting diode The cathode of LED 33 is connected to the other end of diode 31 (D31), port 8 of relay 32 (K32), and the collector of transistor 31 (Q31). The emitter of transistor 31 (Q31) is connected to one end of resistor 102 (R102) and ground. The other end of resistor 102 (R102) is connected to the base of transistor 31 (Q31) and one end of resistor 95 (R95). The other end of resistor 95 (R95) is connected to pin 24 of chip 8 (U8). Port 3 of relay 32 (K32) is connected to pin 22 of chip 6 (U6). Port 1 of relay 33 (K33) is connected to diode 32 ( D32), one end of resistor one hundred and ten (R110), 5V voltage, the other end of resistor one hundred and ten (R110) is connected to the anode of light emitting diode thirty-four (LED34), the cathode of light emitting diode thirty-four (LED34) is respectively connected to the other end of diode thirty-two (D32), port 8 of relay thirty-three (K33), collector of transistor thirty-two (Q32), emitter of transistor thirty-two (Q32) is respectively connected to one end of resistor one hundred and three (R103) and ground, the other end of resistor one hundred and three (R103) is respectively connected to the base of transistor thirty-two (Q32), one end of resistor ninety-six (R96), the other end of resistor ninety-six (R96) is respectively connected to chip eight ( The 30th pin of the chip (U8), the 3rd port of the relay 33 (K33) is connected to the 28th pin of the chip 6 (U6), the 1st port of the relay 34 (K34) is respectively connected to one end of the diode 33 (D33), one end of the resistor 111 (R111), and the 5V voltage, the other end of the resistor 111 (R111) is connected to the anode of the light-emitting diode 35 (LED35), the cathode of the light-emitting diode 35 (LED35) is respectively connected to the other end of the diode 33 (D33), the 8th port of the relay 34 (K34), and the collector of the transistor 33 (Q33), the emitter of the transistor 33 (Q33) is respectively connected to one end of the resistor 104 (R104) and the ground,The other end of resistor 104 (R104) is connected to the base of transistor 33 (Q33) and one end of resistor 97 (R97), the other end of resistor 97 (R97) is connected to pin 36 of chip 8 (U8), port 3 of relay 34 (K34) is connected to pin 34 of chip 6 (U6), port 1 of relay 35 (K35) is connected to one end of diode 34 (D34), one end of resistor 112 (R112) and 5V voltage, the other end of resistor 112 (R112) is connected to the anode of light emitting diode 36 (LED36), the cathode of light emitting diode 36 (LED36) is connected to the other end of diode 34 (D34), relay 112 (R112) and 5V voltage. Port 8 of relay 35 (K35), the collector of transistor 34 (Q34), and the emitter of transistor 34 (Q34) are connected to one end of resistor 105 (R105) and ground respectively. The other end of resistor 105 (R105) is connected to the base of transistor 34 (Q34) and one end of resistor 98 (R98). The other end of resistor 98 (R98) is connected to pin 40 of chip 8 (U8). Port 3 of relay 35 (K35) is connected to pin 38 of chip 6 (U6). Port 1 of relay 36 (K36) is connected to one end of diode 35 (D35), one end of resistor 127 (R127), and 5V voltage respectively. The other end of resistor 127 (R127) is connected to pin 40 of chip 8 (U8). One end is connected to the anode of light emitting diode thirty-seven (LED37), the cathode of light emitting diode thirty-seven (LED37) is respectively connected to the other end of diode thirty-five (D35), port 8 of relay thirty-six (K36), and the collector of transistor thirty-five (Q35), the emitter of transistor thirty-five (Q35) is respectively connected to one end of resistor one hundred and twenty (R120) and ground, the other end of resistor one hundred and thirteen (R113) is respectively connected to the base of transistor thirty-five (Q35), one end of resistor one hundred and thirteen (R113), the other end of resistor one hundred and thirteen (R113) is respectively connected to pin 8 of chip eight (U8), port 3 of relay thirty-six (K36) is connected to pin 6 of chip six (U6), relay Port 1 of device thirty-seven (K37) is respectively connected to one end of diode thirty-six (D36), one end of resistor one-twenty-eight (R128), and 5V voltage; the other end of resistor one-twenty-eight (R128) is connected to the anode of light-emitting diode thirty-eight (LED38); the cathode of light-emitting diode thirty-eight (LED38) is respectively connected to the other end of diode thirty-six (D36), port 8 of relay thirty-seven (K37), and the collector of transistor thirty-six (Q36); the emitter of transistor thirty-six (Q36) is respectively connected to one end of resistor one-twenty-one (R121) and ground; the other end of resistor one-twenty-one (R121) is respectively connected to the base of transistor thirty-six (Q36) and one end of resistor one-hundred-fourteen (R114);The other end of resistor 114 (R114) is connected to pin 14 of chip 8 (U8), port 3 of relay 37 (K37) is connected to pin 12 of chip 6 (U6), port 1 of relay 38 (K38) is connected to one end of diode 37 (D37), one end of resistor 129 (R129), and 5V voltage, the other end of resistor 129 (R129) is connected to the anode of light emitting diode 39 (LED39), and the cathode of light emitting diode 39 (LED39) is connected to the other end of diode 37 (D37), port 8 of relay 38 (K38), the collector of transistor 37 (Q37), and the emitter of transistor 37 (Q37). One end of resistor R122 is connected to ground, the other end of resistor R122 is connected to the base of transistor Q37 and one end of resistor R115, the other end of resistor R115 is connected to pin 20 of chip U8, port 3 of relay K38 is connected to pin 18 of chip U6, port 1 of relay K39 is connected to one end of diode D38, one end of resistor R130 and 5V voltage, the other end of resistor R130 is connected to the anode of light emitting diode LED40 and the cathode of light emitting diode LED40. The electrodes are connected to the other end of diode 38 (D38), port 8 of relay 39 (K39), and the collector of transistor 38 (Q38). The emitter of transistor 38 (Q38) is connected to one end of resistor 123 (R123) and ground. The other ends of resistor 123 (R123) are connected to the base of transistor 38 (Q38) and one end of resistor 116 (R116). The other ends of resistor 116 (R116) are connected to pin 26 of chip 8 (U8). Port 3 of relay 39 (K39) is connected to pin 24 of chip 6 (U6). Port 1 of relay 40 (K40) is connected to one end of diode 39 (D39), one end of resistor 123 (R123), and the collector of transistor 38 (Q38). The emitter of transistor 38 (Q38) is connected to one end of resistor 123 (R123) and ground. The other ends of resistor 123 (R123) are connected to the base of transistor 38 (Q38) and one end of resistor 116 (R116). The other ends of resistor 116 (R116) are connected to pin 26 of chip 8 (U8). Port 3 of relay 39 (K39) is connected to pin 24 of chip 6 (U6). One end of resistor 31 (R131) is connected to 5V voltage, and the other end of resistor 31 (R131) is connected to the anode of light-emitting diode 41 (LED41). The cathode of light-emitting diode 41 (LED41) is respectively connected to the other end of diode 39 (D39), port 8 of relay 40 (K40), and the collector of transistor 39 (Q39). The emitter of transistor 39 (Q39) is respectively connected to one end of resistor 124 (R124) and ground. The other end of resistor 124 (R124) is respectively connected to the base of transistor 39 (Q39) and one end of resistor 117 (R117). The other end of resistor 117 (R117) is respectively connected to pin 32 of chip 8 (U8).Port 3 of relay 40 (K40) is connected to pin 30 of chip 6 (U6), port 1 of relay 41 (K41) is respectively connected to one end of diode 40 (D40), one end of resistor 132 (R132), and 5V voltage, the other end of resistor 132 (R132) is connected to the anode of light emitting diode 42 (LED42), the cathode of light emitting diode 42 (LED42) is respectively connected to the other end of diode 40 (D40), port 8 of relay 41 (K41), and the collector of transistor 40 (Q40), the emitter of transistor 40 (Q40) is respectively connected to one end of resistor 125 (R125) and ground, the other end of resistor 125 (R125) is respectively connected to transistor 4 The base of diode 10 (Q40), one end of resistor 118 (R118), and the other end of resistor 118 (R118) are connected to pin 38 of chip 8 (U8), port 3 of relay 41 (K41) is connected to pin 36 of chip 6 (U6), port 1 of relay 42 (K42) is connected to one end of diode 41 (D41), one end of resistor 133 (R133), and 5V voltage, the other end of resistor 133 (R133) is connected to the anode of light emitting diode 43 (LED43), and the cathode of light emitting diode 43 (LED43) is connected to the other end of diode 41 (D41), port 8 of relay 42 (K42), and transistor 41 (Q41). The collector of transistor 41 (Q41), the emitter of transistor 126 (R126) and ground are connected respectively, the other end of resistor 126 (R126) is connected to the base of transistor 41 (Q41) and one end of resistor 119 (R119), the other end of resistor 119 (R119) is connected to pin 42 of chip 8 (U8), port 3 of relay 42 (K42) is connected to pin 40 of chip 6 (U6), ports 4 of relay 23 (K23) to relay 42 (K42) are combined and connected to one end of resistor 69 (R69), the other end of resistor 69 (R69) is connected to pin 2 of chip 7 (U7) and pin 71 (R71). One end, the other end of resistor seventy-one (R71) is connected to pin 6 of chip seven (U7) and pin 2 of chip eight (U8), pin 3 of chip seven (U7) is connected to one end of resistor seventy (R70), the other end of resistor seventy (R70) is grounded, pins 4 and 7 of chip seven (U7) are connected to 5V voltage respectively, pin 1 of chip nine (U9) is grounded, pin 2 of chip nine (U9) is connected to one end of capacitor thirteen (C13), the other end of capacitor thirteen (C13) is connected to pin 4 of chip nine (U9), pin 5 of chip nine (U9) is connected to 5V voltage and one end of capacitor sixteen (C16) respectively, the other end of capacitor sixteen (C16) is grounded, pin 6 of chip nine (U9) is grounded,Connect the 8th pin of chip nine (U9) to 5V voltage.

3. The chip open and short circuit automatic detection device according to claim 2, characterized in that: The model of the chip one (U1) to the chip five (5) and the chip nine (U9) is TP7660H, the model of the chip six (U6) and the chip eight (U8) is EH254V-12-64P, the model of the chip seven (U7) is OP07CP, the model of the relay one (K1) to the relay twenty-one (K21), the model of the relay twenty-three (K23) to the relay forty-two (K42) is AGQ200, the model of the relay twenty-two (K22) is K2SMD, the model of the chip ten (U10) is LD1117, and the model of the connection terminal one (J1) to the connection terminal three (J3) is Header 5X2.

4. The chip open and short circuit automatic detection device according to claim 1, characterized in that: The adapter board is provided with an adapter board circuit, which includes test socket 1 (SITE1) to test socket 8 (SITE8), connector 1 (HJ1) to connector 8 (HJ8), port 1 of test socket 1 (SITE1) to test socket 8 (SITE8) is respectively connected to port 1 and port 2 of connector 1 (HJ1) to connector 8 (HJ8), port 2 of test socket 1 (SITE1) to test socket 8 (SITE8) is respectively connected to port 3 and port 4 of connector 1 (HJ1) to connector 8 (HJ8), port 3 of test socket 1 (SITE1) to test socket 8 (SITE8) is respectively connected to port 5 and port 6 of connector 1 (HJ1) to connector 8 (HJ8), port 4 of test socket 1 (SITE1) to test socket 8 (SITE8) is respectively grounded, Port No. 5 of test socket 1 (SITE1) to test socket 8 (SITE8) is respectively connected to port No. 7 and port No. 8 of connector 1 (HJ1) to connector 8 (HJ8), port No. 6 of test socket 1 (SITE1) to test socket 8 (SITE8) is respectively connected to port No. 9 and port No. 10 of connector 1 (HJ1) to connector 8 (HJ8), port No. 7 of test socket 1 (SITE1) to test socket 8 (SITE8) is respectively connected to port No. 11 and port No. 12 of connector 1 (HJ1) to connector 8 (HJ8), port No. 8 of test socket 1 (SITE1) to test socket 8 (SITE8) is respectively connected to port No. 13 and port No. 14 of connector 1 (HJ1) to connector 8 (HJ8), and port No. 9 of test socket 1 (SITE1) to test socket 8 (SITE8) is respectively grounded.

5. The chip open and short circuit automatic detection device according to claim 4, characterized in that: The model of the test socket 1 (SITE1) to the test socket 8 (SITE8) is DFN6X8, and the model of the connector 1 (HJ1) to the connector 8 (HJ8) is Header2X32.

6. The chip open and short circuit automatic detection device according to claim 1, characterized in that: The single-chip microcomputer main control module uses the STM32H745 series, and the ADC measurement unit uses the STM32H745 series sampling channel.

7. A method according to any one of claims 1 to 6, characterized in that: The steps include: S1, the MCU main control module receives the command signal from the host computer and sends a command to open a relay according to the command signal; S2, the corresponding relay switching module receives the instruction and the switching module starts working; S3, current is injected into a pin of the chip under test; S4, the test channel of the ADC measurement unit samples the current of the pin of the chip to be tested; S5, the MCU main control module obtains the sampling results and uploads them to the host computer; S6, the host computer receives the sampling result, determines whether the pin of the chip to be tested is qualified, and distinguishes good products from defective products; S7, the host computer transmits the test BIN information results to the sorting machine according to the GPIB communication protocol; S8, the sorting machine sorts the good and bad chips, collects and processes the bad chips, and performs step S9 on the good chips; S9, repeating steps S1 to S8 until all pins of the chip to be tested are tested.

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