Trigger circuit of electronic jumper

Abstract

The invention discloses a trigger circuit of an electronic jumper, which comprises a trigger pulse generation unit, a trigger pulse amplification unit and a power supply, and is characterized in that two input ends of the trigger pulse generation unit are connected with external control signals, and the output end of the trigger pulse generation unit is connected with the input end of the trigger pulse amplification unit; a first output end, a second output end, a third output end and a fourth output end of the trigger pulse amplification unit are connected with external parallel thyristors; the power supply supplies power to the trigger pulse generation unit and the trigger pulse amplification unit. After receiving an external control input signal, the circuit triggers the pulse generation unit to generate a trigger pulse signal, the trigger pulse signal is input to the trigger pulse amplification unit for amplification processing, and external parallel thyristors are triggered to be conducted. According to the trigger circuit, the problems of low reliability and unstable performance of the trigger circuit of the electronic jumper are solved, and the traditional mechanical switch technology can be replaced.

Description

Technical Field

[0001] The present invention relates to the field of electrical engineering, and more specifically, to a trigger circuit of an electronic jumper. Background Art

[0002] Power electronics technology has been widely used in the field of power systems. In other words, the construction and development of modern power systems are inseparable from power electronics technology and have shown a trend towards power electronics.

[0003] Electronic jumper technology is mainly used in renewable energy power generation, as well as pumped storage power generation motors, synchronous condensers, synchronous generator excitation and other industries. At present, considering the high cost, long response time, low reliability of trigger circuits, unstable performance leading to unstable operation of electronic jumpers and other factors, traditional mechanical switch (sometimes called mechanical jumper) technology can no longer meet the needs of engineering. Electronic jumpers have the advantages of lower cost and quick response, and are gradually valued and developed and widely promoted and applied. Summary of the invention

[0004] The present invention provides a trigger circuit for an electronic jumper to overcome the defects of low reliability and unstable performance of the trigger circuit of the existing electronic jumper.

[0005] In order to solve the above technical problems, the technical solution of the present invention is as follows:

[0006] The present invention proposes a trigger circuit of an electronic jumper, comprising a trigger pulse generating unit, a trigger pulse amplifying unit and a power supply, wherein two input ends of the trigger pulse generating unit are connected to an external control signal, an output end of the trigger pulse generating unit is connected to an input end of the trigger pulse amplifying unit, and a first output end, a second output end, a third output end and a fourth output end of the trigger pulse amplifying unit are connected to an external parallel thyristor; and the power supply supplies power to the trigger pulse generating unit and the trigger pulse amplifying unit.

[0007] Preferably, the trigger pulse generating unit comprises a D flip-flop chip U1, a NOR gate circuit chip U2, a first resistor, a second resistor, and a first capacitor;

[0008] The RESET pin and the SET pin of U1 are used as the first input terminal and the second input terminal of the trigger pulse generating unit to receive the external control signal respectively, and the X2 pin of U2 is used as the output terminal of the trigger pulse generating unit;

[0009] The VDD pin of U1 is connected to the positive electrode of the power supply, the VSS pin of U1 is grounded, and the Q pin of U1 is connected to the A1 pin of the NOR gate circuit chip U2;

[0010] The VDD pin of U2 is connected to the positive electrode of the power supply, the VSS pin of U2 is grounded, the B1 pin of U2 is connected to one end of a first resistor, the other end of the first resistor is connected to one end of a first capacitor, and the other end of the first capacitor is connected to the X2 pin of U2;

[0011] The other end of the first resistor is also connected to one end of the second resistor, and the other end of the second resistor is respectively connected to the X1, B2 and A2 pins of the U2.

[0012] Preferably, the trigger pulse amplification unit includes a driving chip U3, a first pulse transformer, a second pulse transformer, a first field effect transistor, a second field effect transistor, a first voltage regulator, a second voltage regulator, a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, a seventh resistor, an eighth resistor, a second capacitor, a third capacitor, a fourth capacitor, a fifth capacitor, a sixth capacitor, a seventh capacitor, a first diode, a second diode, a third diode, a fourth diode, a fifth diode, a sixth diode, a seventh diode, an eighth diode, a ninth diode, a tenth diode, an eleventh diode, and a twelfth diode;

[0013] The HIN1 pin of U3 is connected to the HIN2 pin, and the HIN2 pin is connected as the input end of the trigger pulse amplification unit to the output end of the trigger pulse generation unit;

[0014] The HIN3 pin, LIN1 pin, LIN2 pin, LIN3 pin, ITRIP pin, CA pin, VSS pin, VS2 pin and VS1 pin of the U3 are all grounded, and the VCC pin, VB2 pin and VB1 pin of the U3 are connected to the positive electrode of the power supply;

[0015] The HO1 pin of U3 is connected to one end of the third resistor, the other end of the third resistor is respectively connected to the gate of the first field effect transistor and the cathode of the first voltage regulator diode, the anode of the first voltage regulator diode is respectively connected to the source of the first field effect transistor, one end of the fourth resistor, the anode of the first diode and the cathode of the second diode, the cathode of the first diode is grounded, the other end of the fourth resistor is respectively connected to the anode of the second diode and one end of the second capacitor, and the other end of the second capacitor is connected to the drain of the first field effect transistor;

[0016] The other end of the second capacitor is also connected to the cathode of the third diode, the anode of the third diode is respectively connected to the anode of the fourth diode and one end of the primary side of the first pulse transformer, the cathode of the fourth diode is respectively connected to one end of the fifth resistor, the other end of the primary side of the first pulse transformer, one end of the third capacitor and one end of the fourth capacitor, the other end of the fifth resistor, the other end of the third capacitor and the other end of the fourth capacitor are connected to the positive electrode of the power supply, one end of the secondary side of the first pulse transformer is connected to the anode of the fifth diode, and the other end of the secondary side of the first pulse transformer is respectively connected to the cathode of the fifth diode and the anode of the sixth diode;

[0017] The HO2 pin of U3 is connected to one end of the sixth resistor, the other end of the sixth resistor is respectively connected to the gate of the second field effect transistor and the cathode of the second voltage regulator diode, the anode of the second voltage regulator diode is respectively connected to the source of the second field effect transistor, one end of the seventh resistor, the anode of the seventh diode and the cathode of the eighth diode, the cathode of the seventh diode is grounded, the other end of the seventh resistor is respectively connected to the anode of the eighth diode and one end of the fifth capacitor, and the other end of the fifth capacitor is connected to the drain of the second field effect transistor;

[0018] The other end of the fifth capacitor is also connected to the cathode of the ninth diode, the anode of the ninth diode is respectively connected to the anode of the tenth diode and one end of the primary side of the second pulse transformer, the cathode of the tenth diode is respectively connected to one end of the eighth resistor, the other end of the primary side of the second pulse transformer, one end of the sixth capacitor and one end of the seventh capacitor, the other end of the eighth resistor, the other end of the sixth capacitor and the other end of the seventh capacitor are connected to the positive electrode of the power supply, one end of the secondary side of the second pulse transformer is connected to the anode of the eleventh diode, and the other end of the secondary side of the second pulse transformer is respectively connected to the cathode of the eleventh diode and the anode of the twelfth diode;

[0019] The anode of the fifth diode, the cathode of the sixth diode, the anode of the eleventh diode and the cathode of the twelfth diode serve as the first output end, the second output end, the third output end and the fourth output end of the trigger pulse amplification unit respectively, and the anode of the fifth diode, the cathode of the sixth diode, the anode of the eleventh diode and the cathode of the twelfth diode are connected to the external parallel thyristor.

[0020] Preferably, the power supply includes a first sub-power supply and a second sub-power supply; the positive electrode of the first sub-power supply is respectively connected to the VDD pins of U1, U2 and U3, and the voltage is 15V; the positive electrode of the second sub-power supply is respectively connected to the other end of the fifth resistor, the other end of the eighth resistor, the other end of the third capacitor, the other end of the fourth capacitor, the other end of the sixth capacitor and the other end of the seventh capacitor, and the voltage is 24V.

[0021] Preferably, the power supply includes a first sub-power supply and a voltage-stabilized power supply unit, the input end of the voltage-stabilized power supply unit is connected to the positive electrode of the first sub-power supply, the output end of the voltage-stabilized power supply unit is connected to the VDD pins of U1, U2 and U3 respectively, and the output voltage of the output end of the voltage-stabilized power supply unit is 15V;

[0022] The positive electrode of the first sub-power source is also connected to the other end of the fifth resistor, the other end of the eighth resistor, the other end of the third capacitor, the other end of the fourth capacitor, the other end of the sixth capacitor and the other end of the seventh capacitor, respectively, and the voltage of the first sub-power source is 24V;

[0023] The voltage-stabilized power supply unit includes a three-terminal linear voltage regulator, a thirteenth diode, an eighth capacitor, a ninth capacitor, a first polarized capacitor, and a second polarized capacitor;

[0024] The anode of the thirteenth diode serves as the input terminal of the voltage-stabilized power supply unit, and the Vout pin of the three-terminal linear regulator serves as the output terminal of the voltage-stabilized power supply unit;

[0025] The cathode of the thirteenth diode, one end of the eighth capacitor, and the positive electrode of the first polar capacitor are all connected to the Vin pin of the three-terminal linear regulator, the other end of the eighth capacitor, the negative electrode of the first polar capacitor, the negative electrode of the second polar capacitor, and one end of the ninth capacitor are all connected to the GND pin of the three-terminal linear regulator, and the positive electrode of the second polar capacitor and the other end of the ninth capacitor are all connected to the Vout pin of the three-terminal linear regulator.

[0026] Preferably, the U1 model is CD4013BMS.

[0027] Preferably, the U2 model is MC114011BCP.

[0028] Preferably, the U3 model is IR2130.

[0029] Preferably, the main working sequence of the trigger circuit of the electronic jumper includes:

[0030] (1) When there is no external control signal input, the SET pin input of U1 is low level, and the RESET pin input is high level, which are respectively recorded as SET=0 and RESET=1. At this time, the Q pin of U1 outputs low level, which is recorded as Q=0. Correspondingly, when there is an external control signal input, the SET pin input of U1 is high level, and the RESET pin input is low level, which are recorded as SET=1 and RESET=0. The Q pin outputs high level, which is recorded as Q=1.

[0031] From no external control signal input to external control signal input, the output level of the Q pin of U1 changes from 0 to 1;

[0032] (2) When the Q pin of U1 outputs a low level, i.e., Q=0, the A1 pin and B1 pin of U2 both input a low level, which are respectively recorded as A1=0 and B1=0, then the X1 pin of U2 outputs a high level, which is recorded as X1=1; the X2 pin of U2 outputs a low level, which is recorded as X2=0;

[0033] When the Q pin of U1 outputs a high level, that is, Q=1, the A1 pin of U2 inputs a high level, which is recorded as A1=1, then the X1 pin of U2 outputs a low level, which is recorded as X1=0, and the X2 pin of U2 outputs a high level, which is recorded as X2=1;

[0034] From no external control signal input to external control signal input, the output level of the X2 pin of U2 changes from 0 to 1;

[0035] (3) When the X2 pin of U2 outputs a low level, that is, X2=0, the HO1 pin and the HO2 pin of U3 both output a low level, which is recorded as HO1=0, HO2=0;

[0036] When the X2 pin of U2 outputs a high level, that is, X2=1, the HO1 pin and the HO2 pin of U3 both output a high level, which is recorded as HO1=1, HO2=1;

[0037] From no external control signal input to external control signal input, the output levels of the HO1 pin and the HO2 pin of U3 change from 0 to 1;

[0038] (4) When the HO1 pin and the HO2 pin of the U3 both output a low level, that is, HO1=0, HO2=0, the first field effect transistor and the second field effect transistor are both in the cut-off state, and the secondary side of the first pulse transformer and the secondary side of the second pulse transformer have no pulse signal output;

[0039] When the HO1 pin and the HO2 pin of the U3 both output a high level, that is, HO1=1, HO2=1, the first field effect transistor and the second field effect transistor are both triggered to turn on, a loop exists between the primary side of the first pulse transformer and the primary side of the second pulse transformer, the primary side of the first pulse transformer and the secondary side of the second pulse transformer generate two pulse signals, and the external parallel thyristor is triggered to turn on.

[0040] The present invention provides an electronic jumper, comprising the trigger circuit of the electronic jumper described above and parallel thyristors, wherein the trigger circuit is used to trigger and turn on the parallel thyristors.

[0041] Compared with the prior art, the technical solution of the present invention has the following beneficial effects:

[0042] The present invention proposes a trigger circuit of an electronic jumper. After receiving an external control input signal, the circuit triggers a pulse generating unit to generate a trigger pulse signal, which is input to a trigger pulse amplifying unit. The trigger pulse amplifying unit amplifies the trigger pulse signal to generate a trigger signal for triggering an external parallel thyristor to conduct. The present invention solves the problem of low reliability and unstable performance of the trigger circuit of the electronic jumper, and can replace the traditional mechanical switch technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 The block diagram of the trigger circuit of the electronic jumper described in Example 1;

[0044] Figure 2 The circuit schematic diagram of the trigger circuit of the electronic jumper described in Example 2;

[0045] Figure 3 This is a circuit schematic diagram of the voltage-stabilized power supply unit in the trigger circuit of the electronic jumper described in Example 3. DETAILED DESCRIPTION

[0046] The drawings are for illustrative purposes only and should not be construed as limiting the present patent;

[0047] In order to better illustrate the present embodiment, some parts in the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product;

[0048] It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0049] The technical solution of the present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0050] Example 1

[0051] This embodiment provides a trigger circuit of an electronic jumper, such as Figure 1 As shown, it is a block diagram of the trigger circuit of the electronic jumper, including a trigger pulse generating unit, a trigger pulse amplifying unit and a power supply, the two input ends of the trigger pulse generating unit are connected to the external control signal, the output end of the trigger pulse generating unit is connected to the input end of the trigger pulse amplifying unit, the first output end, the second output end, the third output end and the fourth output end of the trigger pulse amplifying unit are connected to the external parallel thyristor; the power supply supplies power to the trigger pulse generating unit and the trigger pulse amplifying unit.

[0052] In the specific implementation process, after the trigger circuit receives the external control input signal, it will trigger the pulse generating unit to generate a trigger pulse signal, which is input to the trigger pulse amplifying unit. The trigger pulse amplifying unit amplifies the trigger pulse signal to generate a trigger signal for triggering the external parallel thyristor to turn on. The energy storage circuit discharges the energy absorbing element to release the original stored energy, thereby realizing functions such as demagnetization and over-protection.

[0053] Example 2

[0054] This embodiment provides a trigger circuit of an electronic jumper, such as Figure 2 As shown, it is a circuit schematic diagram of the trigger circuit of the electronic jumper, including a trigger pulse generating unit, a trigger pulse amplifying unit and a power supply. The two input ends of the trigger pulse generating unit are connected to the external control signal, the output end of the trigger pulse generating unit is connected to the input end of the trigger pulse amplifying unit, the first output end, the second output end, the third output end and the fourth output end of the trigger pulse amplifying unit are connected to the external parallel thyristor, and the output end 1, the output end 2, the output end 3 and the output end 4 in the figure correspond to the first output end, the second output end, the third output end and the fourth output end of the trigger pulse amplifying unit respectively; the power supply supplies power to the trigger pulse generating unit and the trigger pulse amplifying unit.

[0055] The trigger pulse generating unit includes a D flip-flop chip U1, a NOR gate circuit chip U2, a first resistor, a second resistor, and a first capacitor;

[0056] The RESET pin and the SET pin of U1 are used as the first input terminal and the second input terminal of the trigger pulse generating unit to receive the external control signal respectively, and the X2 pin of U2 is used as the output terminal of the trigger pulse generating unit;

[0057] The VDD pin of U1 is connected to the positive electrode of the power supply, the VSS pin of U1 is grounded, and the Q pin of U1 is connected to the A1 pin of the NOR gate circuit chip U2;

[0058] The VDD pin of U2 is connected to the positive electrode of the power supply, the VSS pin of U2 is grounded, the B1 pin of U2 is connected to one end of a first resistor, the other end of the first resistor is connected to one end of a first capacitor, and the other end of the first capacitor is connected to the X2 pin of U2;

[0059] The other end of the first resistor is also connected to one end of the second resistor, and the other end of the second resistor is respectively connected to the X1, B2 and A2 pins of the U2.

[0060] The U1 model is CD4013BMS, and the U2 model is MC114011BCP.

[0061] The trigger pulse amplification unit includes a driving chip U3, a first pulse transformer, a second pulse transformer, a first field effect transistor, a second field effect transistor, a first voltage regulator, a second voltage regulator, a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, a seventh resistor, an eighth resistor, a second capacitor, a third capacitor, a fourth capacitor, a fifth capacitor, a sixth capacitor, a seventh capacitor, a first diode, a second diode, a third diode, a fourth diode, a fifth diode, a sixth diode, a seventh diode, an eighth diode, a ninth diode, a tenth diode, an eleventh diode, and a twelfth diode;

[0062] The HIN1 pin of U3 is connected to the HIN2 pin, and the HIN2 pin is connected as the input end of the trigger pulse amplification unit to the output end of the trigger pulse generation unit;

[0063] The HIN3 pin, LIN1 pin, LIN2 pin, LIN3 pin, ITRIP pin, CA pin, VSS pin, VS2 pin and VS1 pin of the U3 are all grounded, and the VCC pin, VB2 pin and VB1 pin of the U3 are connected to the positive electrode of the power supply;

[0064] The HO1 pin of U3 is connected to one end of the third resistor, the other end of the third resistor is respectively connected to the gate of the first field effect transistor and the cathode of the first voltage regulator diode, the anode of the first voltage regulator diode is respectively connected to the source of the first field effect transistor, one end of the fourth resistor, the anode of the first diode and the cathode of the second diode, the cathode of the first diode is grounded, the other end of the fourth resistor is respectively connected to the anode of the second diode and one end of the second capacitor, and the other end of the second capacitor is connected to the drain of the first field effect transistor;

[0065] The other end of the second capacitor is also connected to the cathode of the third diode, the anode of the third diode is respectively connected to the anode of the fourth diode and one end of the primary side of the first pulse transformer, the cathode of the fourth diode is respectively connected to one end of the fifth resistor, the other end of the primary side of the first pulse transformer, one end of the third capacitor and one end of the fourth capacitor, the other end of the fifth resistor, the other end of the third capacitor and the other end of the fourth capacitor are connected to the positive electrode of the power supply, one end of the secondary side of the first pulse transformer is connected to the anode of the fifth diode, and the other end of the secondary side of the first pulse transformer is respectively connected to the cathode of the fifth diode and the anode of the sixth diode;

[0066] The HO2 pin of U3 is connected to one end of the sixth resistor, the other end of the sixth resistor is respectively connected to the gate of the second field effect transistor and the cathode of the second voltage regulator diode, the anode of the second voltage regulator diode is respectively connected to the source of the second field effect transistor, one end of the seventh resistor, the anode of the seventh diode and the cathode of the eighth diode, the cathode of the seventh diode is grounded, the other end of the seventh resistor is respectively connected to the anode of the eighth diode and one end of the fifth capacitor, and the other end of the fifth capacitor is connected to the drain of the second field effect transistor;

[0067] The other end of the fifth capacitor is also connected to the cathode of the ninth diode, the anode of the ninth diode is respectively connected to the anode of the tenth diode and one end of the primary side of the second pulse transformer, the cathode of the tenth diode is respectively connected to one end of the eighth resistor, the other end of the primary side of the second pulse transformer, one end of the sixth capacitor and one end of the seventh capacitor, the other end of the eighth resistor, the other end of the sixth capacitor and the other end of the seventh capacitor are connected to the positive electrode of the power supply, one end of the secondary side of the second pulse transformer is connected to the anode of the eleventh diode, and the other end of the secondary side of the second pulse transformer is respectively connected to the cathode of the eleventh diode and the anode of the twelfth diode;

[0068] The anode of the fifth diode, the cathode of the sixth diode, the anode of the eleventh diode and the cathode of the twelfth diode serve as the first output end, the second output end, the third output end and the fourth output end of the trigger pulse amplification unit respectively, and the anode of the fifth diode, the cathode of the sixth diode, the anode of the eleventh diode and the cathode of the twelfth diode are connected to the external parallel thyristor.

[0069] The U3 model is IR2130.

[0070] The main working sequence of the trigger circuit of the electronic jumper includes:

[0071] (1) When there is no external control signal input, the SET pin input of U1 is low level, and the RESET pin input is high level, which are respectively recorded as SET=0 and RESET=1. At this time, the Q pin of U1 outputs low level, which is recorded as Q=0. Correspondingly, when there is an external control signal input, the SET pin input of U1 is high level, and the RESET pin input is low level, which are recorded as SET=1 and RESET=0. The Q pin outputs high level, which is recorded as Q=1.

[0072] From no external control signal input to external control signal input, the output level of the Q pin of U1 changes from 0 to 1;

[0073] (2) When the Q pin of U1 outputs a low level, i.e., Q=0, the A1 pin and B1 pin of U2 both input a low level, which are respectively recorded as A1=0 and B1=0, then the X1 pin of U2 outputs a high level, which is recorded as X1=1; the X2 pin of U2 outputs a low level, which is recorded as X2=0;

[0074] When the Q pin of U1 outputs a high level, that is, Q=1, the A1 pin of U2 inputs a high level, which is recorded as A1=1, then the X1 pin of U2 outputs a low level, which is recorded as X1=0, and the X2 pin of U2 outputs a high level, which is recorded as X2=1;

[0075] From no external control signal input to external control signal input, the output level of the X2 pin of U2 changes from 0 to 1;

[0076] (3) When the X2 pin of U2 outputs a low level, that is, X2=0, the HO1 pin and the HO2 pin of U3 both output a low level, which is recorded as HO1=0, HO2=0;

[0077] When the X2 pin of U2 outputs a high level, that is, X2=1, the HO1 pin and the HO2 pin of U3 both output a high level, which is recorded as HO1=1, HO2=1;

[0078] From no external control signal input to external control signal input, the output levels of the HO1 pin and the HO2 pin of U3 change from 0 to 1;

[0079] (4) When the HO1 pin and the HO2 pin of the U3 both output a low level, that is, HO1=0, HO2=0, the first field effect transistor and the second field effect transistor are both in the cut-off state, and the secondary side of the first pulse transformer and the secondary side of the second pulse transformer have no pulse signal output;

[0080] When the HO1 pin and the HO2 pin of the U3 both output a high level, that is, HO1=1, HO2=1, the first field effect transistor and the second field effect transistor are both triggered to turn on, a loop exists between the primary side of the first pulse transformer and the primary side of the second pulse transformer, the primary side of the first pulse transformer and the secondary side of the second pulse transformer generate two pulse signals, and the external parallel thyristor is triggered to turn on.

[0081] Example 3

[0082] This embodiment further defines the power supply based on the embodiment 2, and the power supply includes a first sub-power supply and a voltage-stabilized power supply unit, such as Figure 3As shown, it is a circuit schematic diagram of the voltage-stabilized power supply unit in the trigger circuit of the electronic jumper, the input end of the voltage-stabilized power supply unit is connected to the positive electrode of the first sub-power supply, the output end of the voltage-stabilized power supply unit is connected to the VDD pins of U1, U2 and U3 respectively, and the output voltage of the output end of the voltage-stabilized power supply unit is 15V;

[0083] The positive electrode of the first sub-power source is also connected to the other end of the fifth resistor, the other end of the eighth resistor, the other end of the third capacitor, the other end of the fourth capacitor, the other end of the sixth capacitor and the other end of the seventh capacitor, respectively, and the voltage of the first sub-power source is 24V;

[0084] The voltage-stabilized power supply unit includes a three-terminal linear voltage regulator, a thirteenth diode, an eighth capacitor, a ninth capacitor, a first polarized capacitor, and a second polarized capacitor;

[0085] The anode of the thirteenth diode serves as the input terminal of the voltage-stabilized power supply unit, and the Vout pin of the three-terminal linear regulator serves as the output terminal of the voltage-stabilized power supply unit;

[0086] The cathode of the thirteenth diode, one end of the eighth capacitor, and the positive electrode of the first polar capacitor are all connected to the Vin pin of the three-terminal linear regulator, the other end of the eighth capacitor, the negative electrode of the first polar capacitor, the negative electrode of the second polar capacitor, and one end of the ninth capacitor are all connected to the GND pin of the three-terminal linear regulator, and the positive electrode of the second polar capacitor and the other end of the ninth capacitor are all connected to the Vout pin of the three-terminal linear regulator.

[0087] Example 4

[0088] This embodiment provides an electronic jumper, comprising a trigger circuit and parallel thyristors of an electronic jumper as described in Embodiment 3, wherein the trigger circuit is used to trigger and turn on the parallel thyristors.

[0089] The same or similar reference numerals correspond to the same or similar components;

[0090] The terms used in the drawings to describe positional relationships are only used for illustrative purposes and should not be construed as limiting this patent;

[0091] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A trigger circuit of an electronic jumper, characterized in that: It includes a trigger pulse generating unit, a trigger pulse amplifying unit and a power supply, wherein two input ends of the trigger pulse generating unit are connected to external control signals, an output end of the trigger pulse generating unit is connected to an input end of the trigger pulse amplifying unit, and a first output end, a second output end, a third output end and a fourth output end of the trigger pulse amplifying unit are connected to external parallel thyristors; and the power supply supplies power to the trigger pulse generating unit and the trigger pulse amplifying unit.

2. The trigger circuit of an electronic jumper according to claim 1, characterized in that: The trigger pulse generating unit includes a D flip-flop chip U1, a NOR gate circuit chip U2, a first resistor, a second resistor, and a first capacitor; The RESET pin and the SET pin of U1 are used as the first input terminal and the second input terminal of the trigger pulse generating unit to receive the external control signal respectively, and the X2 pin of U2 is used as the output terminal of the trigger pulse generating unit; The VDD pin of U1 is connected to the positive electrode of the power supply, the VSS pin of U1 is grounded, and the Q pin of U1 is connected to the A1 pin of the NOR gate circuit chip U2; The VDD pin of U2 is connected to the positive electrode of the power supply, the VSS pin of U2 is grounded, the B1 pin of U2 is connected to one end of a first resistor, the other end of the first resistor is connected to one end of a first capacitor, and the other end of the first capacitor is connected to the X2 pin of U2; The other end of the first resistor is also connected to one end of the second resistor, and the other end of the second resistor is respectively connected to the X1, B2 and A2 pins of the U2.

3. The trigger circuit of an electronic jumper according to claim 2, characterized in that: The trigger pulse amplification unit includes a driving chip U3, a first pulse transformer, a second pulse transformer, a first field effect transistor, a second field effect transistor, a first voltage regulator, a second voltage regulator, a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, a seventh resistor, an eighth resistor, a second capacitor, a third capacitor, a fourth capacitor, a fifth capacitor, a sixth capacitor, a seventh capacitor, a first diode, a second diode, a third diode, a fourth diode, a fifth diode, a sixth diode, a seventh diode, an eighth diode, a ninth diode, a tenth diode, an eleventh diode, and a twelfth diode; The HIN1 pin of U3 is connected to the HIN2 pin, and the HIN2 pin is connected as the input end of the trigger pulse amplification unit to the output end of the trigger pulse generation unit; The HIN3 pin, LIN1 pin, LIN2 pin, LIN3 pin, ITRIP pin, CA pin, VSS pin, VS2 pin and VS1 pin of the U3 are all grounded, and the VCC pin, VB2 pin and VB1 pin of the U3 are connected to the positive electrode of the power supply; The HO1 pin of U3 is connected to one end of the third resistor, the other end of the third resistor is respectively connected to the gate of the first field effect transistor and the cathode of the first voltage regulator diode, the anode of the first voltage regulator diode is respectively connected to the source of the first field effect transistor, one end of the fourth resistor, the anode of the first diode and the cathode of the second diode, the cathode of the first diode is grounded, the other end of the fourth resistor is respectively connected to the anode of the second diode and one end of the second capacitor, and the other end of the second capacitor is connected to the drain of the first field effect transistor; The other end of the second capacitor is also connected to the cathode of the third diode, the anode of the third diode is respectively connected to the anode of the fourth diode and one end of the primary side of the first pulse transformer, the cathode of the fourth diode is respectively connected to one end of the fifth resistor, the other end of the primary side of the first pulse transformer, one end of the third capacitor and one end of the fourth capacitor, the other end of the fifth resistor, the other end of the third capacitor and the other end of the fourth capacitor are connected to the positive electrode of the power supply, one end of the secondary side of the first pulse transformer is connected to the anode of the fifth diode, and the other end of the secondary side of the first pulse transformer is respectively connected to the cathode of the fifth diode and the anode of the sixth diode; The HO2 pin of U3 is connected to one end of the sixth resistor, the other end of the sixth resistor is respectively connected to the gate of the second field effect transistor and the cathode of the second voltage regulator diode, the anode of the second voltage regulator diode is respectively connected to the source of the second field effect transistor, one end of the seventh resistor, the anode of the seventh diode and the cathode of the eighth diode, the cathode of the seventh diode is grounded, the other end of the seventh resistor is respectively connected to the anode of the eighth diode and one end of the fifth capacitor, and the other end of the fifth capacitor is connected to the drain of the second field effect transistor; The other end of the fifth capacitor is also connected to the cathode of the ninth diode, the anode of the ninth diode is respectively connected to the anode of the tenth diode and one end of the primary side of the second pulse transformer, the cathode of the tenth diode is respectively connected to one end of the eighth resistor, the other end of the primary side of the second pulse transformer, one end of the sixth capacitor and one end of the seventh capacitor, the other end of the eighth resistor, the other end of the sixth capacitor and the other end of the seventh capacitor are connected to the positive electrode of the power supply, one end of the secondary side of the second pulse transformer is connected to the anode of the eleventh diode, and the other end of the secondary side of the second pulse transformer is respectively connected to the cathode of the eleventh diode and the anode of the twelfth diode; The anode of the fifth diode, the cathode of the sixth diode, the anode of the eleventh diode and the cathode of the twelfth diode serve as the first output end, the second output end, the third output end and the fourth output end of the trigger pulse amplification unit respectively, and the anode of the fifth diode, the cathode of the sixth diode, the anode of the eleventh diode and the cathode of the twelfth diode are connected to the external parallel thyristor.

4. The trigger circuit of an electronic jumper according to claim 3, characterized in that: The power supply includes a first sub-power supply and a second sub-power supply; the positive electrode of the first sub-power supply is respectively connected to the VDD pins of U1, U2 and U3, and the voltage is 15V; the positive electrode of the second sub-power supply is respectively connected to the other end of the fifth resistor, the other end of the eighth resistor, the other end of the third capacitor, the other end of the fourth capacitor, the other end of the sixth capacitor and the other end of the seventh capacitor, and the voltage is 24V.

5. The trigger circuit of an electronic jumper according to claim 3, characterized in that: The power supply includes a first sub-power supply and a voltage-stabilized power supply unit, the input end of the voltage-stabilized power supply unit is connected to the positive electrode of the first sub-power supply, the output end of the voltage-stabilized power supply unit is connected to the VDD pins of U1, U2 and U3 respectively, and the output end of the voltage-stabilized power supply unit has an output voltage of 15V; The positive electrode of the first sub-power source is also connected to the other end of the fifth resistor, the other end of the eighth resistor, the other end of the third capacitor, the other end of the fourth capacitor, the other end of the sixth capacitor and the other end of the seventh capacitor, respectively, and the voltage of the first sub-power source is 24V; The voltage-stabilized power supply unit includes a three-terminal linear voltage regulator, a thirteenth diode, an eighth capacitor, a ninth capacitor, a first polarized capacitor, and a second polarized capacitor; The anode of the thirteenth diode serves as the input terminal of the voltage-stabilized power supply unit, and the Vout pin of the three-terminal linear regulator serves as the output terminal of the voltage-stabilized power supply unit; The cathode of the thirteenth diode, one end of the eighth capacitor, and the positive electrode of the first polar capacitor are all connected to the Vin pin of the three-terminal linear regulator, the other end of the eighth capacitor, the negative electrode of the first polar capacitor, the negative electrode of the second polar capacitor, and one end of the ninth capacitor are all connected to the GND pin of the three-terminal linear regulator, and the positive electrode of the second polar capacitor and the other end of the ninth capacitor are all connected to the Vout pin of the three-terminal linear regulator.

6. The trigger circuit of an electronic jumper according to claim 2, characterized in that: The U1 model is CD4013BMS.

7. The trigger circuit of an electronic jumper according to claim 2, characterized in that: The U2 model is MC114011BCP.

8. The trigger circuit of an electronic jumper according to claim 3, characterized in that: The U3 model is IR2130.

9. A trigger circuit for an electronic jumper according to any one of claims 1 to 8, characterized in that: The main working sequence of the trigger circuit of the electronic jumper includes: (1) When there is no external control signal input, the SET pin input of U1 is low level, and the RESET pin input is high level, which are respectively recorded as SET=0 and RESET=1. At this time, the Q pin of U1 outputs low level, which is recorded as Q=0. Correspondingly, when there is an external control signal input, the SET pin input of U1 is high level, and the RESET pin input is low level, which are recorded as SET=1 and RESET=0. The Q pin outputs high level, which is recorded as Q=1. From no external control signal input to external control signal input, the output level of the Q pin of U1 changes from 0 to 1; (2) When the Q pin of U1 outputs a low level, i.e., Q=0, the A1 pin and B1 pin of U2 both input a low level, which are respectively recorded as A1=0 and B1=0, then the X1 pin of U2 outputs a high level, which is recorded as X1=1; the X2 pin of U2 outputs a low level, which is recorded as X2=0; When the Q pin of U1 outputs a high level, that is, Q=1, the A1 pin of U2 inputs a high level, which is recorded as A1=1, then the X1 pin of U2 outputs a low level, which is recorded as X1=0, and the X2 pin of U2 outputs a high level, which is recorded as X2=1; From no external control signal input to external control signal input, the output level of the X2 pin of U2 changes from 0 to 1; (3) When the X2 pin of U2 outputs a low level, that is, X2=0, the HO1 pin and the HO2 pin of U3 both output a low level, which is recorded as HO1=0, HO2=0; When the X2 pin of U2 outputs a high level, that is, X2=1, the HO1 pin and the HO2 pin of U3 both output a high level, which is recorded as HO1=1, HO2=1; From no external control signal input to external control signal input, the output levels of the HO1 pin and the HO2 pin of U3 change from 0 to 1; (4) When the HO1 pin and the HO2 pin of the U3 both output a low level, that is, HO1=0, HO2=0, the first field effect transistor and the second field effect transistor are both in the cut-off state, and the secondary side of the first pulse transformer and the secondary side of the second pulse transformer have no pulse signal output; When the HO1 pin and the HO2 pin of the U3 both output a high level, that is, HO1=1, HO2=1, the first field effect transistor and the second field effect transistor are both triggered to turn on, a loop exists between the primary side of the first pulse transformer and the primary side of the second pulse transformer, the primary side of the first pulse transformer and the secondary side of the second pulse transformer generate two pulse signals, and the external parallel thyristor is triggered to turn on.

10. An electronic jumper, characterized in that: The invention comprises a trigger circuit and a parallel thyristor of an electronic jumper as described in any one of claims 1 to 9, wherein the trigger circuit is used to trigger and turn on the parallel thyristor.

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