Power module test circuits, test methods and electronic equipment

Abstract

This application provides a power module test circuit, test method, and electronic device. The power module test circuit is configured to test a power module. An input module is configured to provide input and enable signals to the power module. An output module is configured to receive output signals from the power module to an external load. A first control module is configured to provide a first output control signal to a first output control terminal or a second output control signal to a second output control terminal. A second control module is configured to provide a third output control signal to the power module and, together with the output module, receive output signals. The test circuit provided by this application integrates input / output and multiple control modules, enabling testing of multiple operating modes of the power module and meeting the testing requirements of various applications. Furthermore, the circuit provided by this application can switch between multiple operating modes without changing the external connection method, reducing interference introduced by circuit switching.

Description

Technical Field

[0001] This application relates to the field of electronic circuit technology, and in particular to a power module test circuit, test method and electronic device. Background Technology

[0002] As a component in a circuit that provides driving power to the load, the reliability of the power module determines the reliability of the entire circuit. Therefore, before a power module is put into actual use, it must undergo reliability testing to verify its performance. Summary of the Invention

[0003] In view of this, the purpose of this application is to provide a power module test circuit, test method and electronic device.

[0004] To achieve the above objectives, this application provides a power module test circuit configured to test a power module. The test circuit includes an input module, an output module, a first control module, and a second control module. The input module is connected to the input terminal and enable control terminal of the power module and is configured to provide an input signal and an enable signal to the power module. The output module is connected to the output terminal of the power module and a peripheral load and is configured to receive the output signal output by the power module to the peripheral load. The first control module is connected to the first output control terminal and the second output control terminal of the power module and is configured to provide a first output control signal to the first output control terminal or a second output control signal to the second output control terminal. The second control module is connected to the third output control terminal of the power module and is configured to provide a third output control signal to the power module and receive the output signal together with the output module.

[0005] Optionally, the input module includes a first input unit and a second input unit; the input terminal of the first input unit is configured to receive an initial input signal and an input compensation signal, and the output terminal of the first input unit is connected to the input terminal of the power module and configured to provide the input signal to the power module; the input terminal of the second input unit is configured to receive an initial turn-on signal and a turn-on compensation signal, and the output terminal of the second input unit is connected to the enable control terminal of the power module and configured to provide the turn-on signal to the power module; the second input unit includes a first switch, one end of the first switch is connected to the enable control terminal of the power module, and the other end is grounded, and the first switch is configured to open or close under the control of a first switch signal.

[0006] Optionally, the first control module further includes a first control unit, a second switch, and a third switch. A first output terminal of the first control unit is connected to one end of the second switch, a second output terminal of the first control unit is connected to one end of the third switch, the other end of the second switch is connected to the first output control terminal of the power module, and the other end of the third switch is connected to the second output control terminal of the power module. The input terminal of the first control unit is configured to receive an initial first output control signal and a first output control compensation signal, and under the control of the switch control signal, provide the first output control signal to the second switch through the first output terminal, or provide the second output control signal to the third switch through the second output terminal. Both the second switch and the third switch are configured to open or close under the control of the second switch signal.

[0007] Optionally, the second control module includes a first input terminal, a second input terminal, and an output terminal; the first input terminal of the second control module is configured to receive an initial third output control signal and a third output control compensation signal; both the output terminal and the second input terminal of the second control module are connected to the third output control terminal of the power supply module; the output terminal of the second control module is configured to provide a third output control signal to the power supply module; and the second input terminal of the second control module is configured to receive the output signal together with the output module.

[0008] Optionally, the second control module includes a fourth switch, one end of which is connected to the first input terminal of the second control module, and the other end of which is connected to the output terminal and the second input terminal of the second control module; the fourth switch is configured to open or close under the control of a third switch signal.

[0009] Optionally, it also includes a third control module, which includes a fifth switch and a variable resistor unit. One end of the fifth switch is connected to the fourth output control terminal of the power module, and the other end is connected to one end of the variable resistor unit. The fifth switch is configured to open or close under the control of the fourth switch signal. The other end of the variable resistor unit is grounded.

[0010] Optionally, the power module is a single-output non-isolated point-of-load power module, and the model of the single-output non-isolated point-of-load power module is PTH05060W.

[0011] Based on the same inventive concept, this application also provides a power module testing method based on the circuit, comprising: providing the input signal and the turn-on signal to the power module through the input module; providing the first output control signal or the second output control signal to the power module through the first control module; receiving the output signal through the output module, and obtaining the test result based on the output signal.

[0012] Based on the same inventive concept, this application also provides a power module testing method based on the circuit, comprising: providing the input signal and the turn-on signal to the power module through the input module; providing the third output control signal to the power module through the second control module; receiving the output signal through the output module and the second control module, and obtaining the test result based on the output signal.

[0013] Based on the same inventive concept, this application also provides an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the method when executing the program.

[0014] As can be seen from the above description, this application provides a power module test circuit, test method, and electronic device. The power module test circuit is configured to test a power module and includes an input module, an output module, a first control module, and a second control module. The input module is connected to the input terminal and enable control terminal of the power module and is configured to provide input signals and enable signals to the power module. The output module is connected to the output terminal of the power module and an external load and is configured to receive output signals from the power module to the external load. The first control module is connected to the first output control terminal and the second output control terminal of the power module and is configured to provide a first output control signal to the first output control terminal or a second output control signal to the second output control terminal. The second control module is connected to the third output control terminal of the power module and is configured to provide a third output control signal to the power module and, together with the output module, receive the output signals. The test circuit provided by this application integrates input / output and multiple control modules, enabling testing of various operating modes of the power module and meeting the testing requirements of various application scenarios. Furthermore, the circuit provided in this application can switch between multiple operating modes without changing the external connection method, reducing interference introduced by circuit switching. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in this application or related technologies, the drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are only embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram showing the connection relationship of each module in the power module test circuit according to an embodiment of this application;

[0017] Figure 2 This is a schematic diagram of the power module structure according to an embodiment of this application;

[0018] Figure 3 This is a schematic diagram of the power module test circuit according to an embodiment of this application;

[0019] Figure 4 This is a schematic diagram of a test socket according to an embodiment of this application;

[0020] Figure 5 This is a schematic diagram of the hardware structure of an electronic device according to an embodiment of this application. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with specific embodiments and the accompanying drawings.

[0022] One embodiment of this application provides a power module test circuit configured to test a power module 10, such as... Figure 1 As shown, the test circuit includes an input module 20, an output module 30, a first control module 40, and a second control module 50, wherein:

[0023] The input module 20 is connected to the input terminal 2 and the enable control terminal 3 of the power module 10, and is configured to provide input signals and enable signals to the power module 10.

[0024] The output module 30 is connected to the output terminal 6 of the power module 10 and the peripheral load 60, and is configured to receive the output signal output by the power module 10 to the peripheral load 60. In a specific implementation, the output module 30 is also configured to output the output signal as Vo1.

[0025] The first control module 40 is connected to the first output control terminal 9 and the second output control terminal 11 of the power module 10, and is configured to provide a first output control signal to the first output control terminal 9 or a second output control signal to the second output control terminal 11.

[0026] The second control module 50 is connected to the third output control terminal 8 of the power module 10 and is configured to provide a third output control signal to the power module 10 and receive the output signal together with the output module 30. In specific implementation, the power module 10 feeds back the output signal through the third output control terminal 8, and when the second control module 50 receives the output signal together with the output module 30, it is also configured to output the output signal as Vo2.

[0027] The test circuit provided in this application integrates input / output and multiple control modules, enabling testing of the power module in various operating modes and meeting the testing requirements of diverse applications. Furthermore, the circuit provides a way to switch between multiple operating modes without changing the external connection method, reducing interference introduced by circuit switching.

[0028] It should be noted that, Figure 1 The main purpose is to illustrate the connection relationship of the various modules of the circuit provided in this application. Since those skilled in the art will know that the test circuit of a device necessarily includes input ports that provide test signals, the ports for each module to receive corresponding input signals are omitted in the figure. Furthermore, the ports included in the power supply module 10 are not limited to… Figure 1 As shown. The input ports of the test circuit described above in this embodiment, as well as other ports of the power module 10 that connect to external components, are all shown in the accompanying drawings of the more specific embodiments described below.

[0029] For ease of understanding, the following is a brief description of the ports of the power module 10 tested by the test circuit described above in this application. Figure 2 The connection relationships between each port of the power module 10 and its internal units are shown. Figure 2 The internal structure of the power module 10 shown is prior art, and those skilled in the art can understand it based on... Figure 2 The names of the internal structures shown in the diagram indicate their working principles and determine the model of the power module that the test circuit described in this application embodiment can test, which will not be elaborated further here.

[0030] The input terminal 2 of the power module is used to receive input signals, and the enable control terminal 3 is used to receive start signals. The power module starts working only in response to the start signals. The fourth output control terminal 4 is specifically an output voltage adjustment terminal, used to adjust the output voltage of the power module. The output terminal 6 is used to output signals. The third output control terminal 8 is specifically an external output tracking control terminal, used to control the output terminal 6 of the power module to output the same signal as the signal input to the third output control terminal 8. The first output control terminal 9 is specifically an output voltage buck adjustment terminal, used to finely adjust the output voltage of the power module downwards. The second output control terminal 11 is specifically an output voltage boost adjustment terminal, used to finely adjust the output voltage of the power module upwards.

[0031] like Figure 2 as well as Figure 3 As shown, the power module also includes two grounding terminals 1 / 7 and an output remote sensing terminal 5. In specific implementation, the grounding terminals 1 / 7 are electrically connected inside the power module, the grounding terminal 1 is grounded externally, the grounding terminal 7 is externally connected to the output terminal 6, and the output terminal 6 is also connected to the output remote sensing terminal 5.

[0032] In some embodiments, the input module 20 includes a first input unit 21 and a second input unit 22, such as... Figure 3 As shown, the input terminal of the first input unit 21 is configured to receive the initial input signal DC source 2F+ and the input compensation signal L2+. The output terminal of the first input unit 21 is connected to the input terminal 2 of the power module 10 and is configured to provide the input signal to the power module 10. In specific implementation, the first input unit 21 receives the initial input signal DC source 2F+ and the input compensation signal L2+ through two input ports respectively. In this embodiment, other units receive two signals through two input ports respectively, which will not be described further.

[0033] Because of the impedance between the two circuit units / modules, a voltage drop occurs across the line, much like adding a very small resistance between ideal wires. For example, if the load requires a 24V power supply, the actual output voltage to the load will drop to 23.9V due to the impedance, resulting in a 0.1V voltage drop. To ensure accurate signal input, a compensation signal is needed to compensate for the voltage drop. For example, the aforementioned input compensation signal L2+ is used to compensate for the initial input signal DC source 2F+. Other initial signals DC source and compensation signals L in this embodiment are similar and will not be described further.

[0034] In one specific embodiment, such as Figure 3 As shown, the first input unit 21 also includes at least one filter capacitor Ci1, Ci2, Ci3. Filtering the input signal with the filter capacitor can make the working performance of the test circuit more stable, and at the same time reduce the interference of alternating ripple on the test circuit. Figure 3 The number of filter capacitors shown is merely exemplary. Those skilled in the art can adjust the number of filter capacitors according to actual circumstances, all of which are within the scope of protection of this application.

[0035] like Figure 3As shown, the input terminal of the second input unit 22 is configured to receive an initial enable signal DC source5F+ and an enable compensation signal L5+. The output terminal of the second input unit 22 is connected to the enable control terminal 3 of the power module 10 and is configured to provide the enable signal to the power module 10.

[0036] In practice, the power module can only output normally when the second input unit provides a valid start signal to the power module. The level of the valid start signal can be determined according to the actual needs of different models of power modules.

[0037] like Figure 3 As shown, the second input unit 22 includes a first switch Kinhibit. One end of the first switch Kinhibit is connected to the enable control terminal 3 of the power module 10, and the other end is grounded. The first switch Kinhibit is configured to open or close under the control of the first switch signal C3G1.

[0038] When the first switch Kinhibit is open, the initial enable signal DC source 5F+ and the enable compensation signal L5+ can be applied to the enable control terminal 3 of the power module 10 to start the power module 10; when the first switch Kinhibit is closed, the enable control terminal 3 is directly grounded, and the power module 10 is in an output disabled state.

[0039] In some embodiments, such as Figure 3 As shown, the output module 30 also includes output filter capacitors Cripple and Co. The filter capacitors are similar to those of the first input unit 21 and will not be described again.

[0040] In practice, the output module 30 outputs Vo1 to the test system through the SMA (SubMiniature version A) interface and coaxial cable to realize the measurement and waveform analysis of Vo1, while ensuring the accuracy of output ripple, switching frequency and dynamic step test.

[0041] In some embodiments, such as Figure 3 As shown, the first control module 40 further includes a first control unit 41, a second switch Kmargin1, and a third switch Kmargin2. The first output terminal DOUT9 of the first control unit 41 is connected to one end of the second switch Kmargin1, the second output terminal DOUT10 of the first control unit 41 is connected to one end of the third switch Kmargin2, the other end of the second switch Kmargin1 is connected to the first output control terminal 9 of the power module 10, and the other end of the third switch Kmargin2 is connected to the second output control terminal 11 of the power module 10. Wherein:

[0042] The input terminal of the first control unit 41 is configured to receive the initial first output control signal DC source3F+ and the first output control compensation signal L3+, and under the control of the switch control signal, provide the first output control signal to the second switch Kmargin1 through the first output terminal DOUT9, or provide the second output control signal to the third switch Kmargin2 through the second output terminal DOUT10.

[0043] Both the second switch Kmargin1 and the third switch Kmargin2 are configured to open or close under the control of the second switch signal C2G1. When the power module performs certain operating mode tests, the first output control terminal 9 and the second output control terminal 11 need to be idle; therefore, the second switch Kmargin1 and the third switch Kmargin2 are provided here.

[0044] In specific implementation, the first output control terminal 9 of the power module is specifically an output voltage buck adjustment terminal, used to finely adjust the output voltage of the power module downwards. The second output control terminal 11 is specifically an output voltage boost adjustment terminal, used to finely adjust the output voltage of the power module upwards. As can be seen from the principle, the first output control terminal 9 and the second output control terminal 11 cannot simultaneously receive valid signals. Therefore, the first control unit 41 is used to ensure that DC source 3F+ and L3+ can only provide valid signals to one of the first output control terminal 9 or the second output control terminal 11. In a specific embodiment, the first control unit 41 can be implemented as an open-collector TTL circuit. Those skilled in the art can understand the specific logic of an open-collector TTL circuit and can also learn how to implement the function of the first control unit 41 described above by consulting relevant materials, so further details are omitted.

[0045] In some embodiments, such as Figure 3 As shown, the second control module 50 includes a first input terminal, a second input terminal, and an output terminal;

[0046] The first input terminal of the second control module 50 is configured to receive the initial third output control signal DCsource 4F+ and the third output control compensation signal L4+; the output terminal and the second input terminal of the second control module 50 are both connected to the third output control terminal 8 of the power module 10; the output terminal of the second control module 50 is configured to provide the third output control signal to the power module 10; the second input terminal of the second control module 50 is configured to receive the output signal together with the output module 30 and output the output signal as Vo2.

[0047] In certain operating modes, the power module does not utilize the second control module 50. In this case, the output module 30 receives the output voltage and outputs it as Vo1. When the power module operates in another mode and uses the second control module 50 to control the power module to output the same signal as the signal input to the third output control terminal 8, the Vo1 output by the output module 30 and the Vo2 output by the second control module 50 need to be connected to the waveform measurement unit of the test system to realize the measurement and waveform analysis of the input signal.

[0048] In one specific embodiment, the second control module 50 outputs Vo2 to the test system via an SMA interface and a coaxial cable, ensuring the accuracy of output ripple, switching frequency, and dynamic step test.

[0049] In some embodiments, such as Figure 3 As shown, the second control module 50 includes a fourth switch Ktrack, one end of which is connected to the first input terminal of the second control module, and the other end of which is connected to the output terminal and the second input terminal of the second control module; the fourth switch Ktrack is configured to open or close under the control of the third switch signal C4G1.

[0050] In some embodiments, such as Figure 1 and Figure 3 As shown, the circuit also includes a third control module 70, which includes a fifth switch Kadj and a variable resistor unit Rset. One end of the fifth switch Kadj is connected to the fourth output control terminal 4 of the power module 10, and the other end is connected to one end of the variable resistor unit Rset. The fifth switch Kadj is configured to open or close under the control of the fourth switch signal C1G1. The other end of the variable resistor unit Rset is grounded.

[0051] The variable resistor unit can adjust its resistance value through remote control, thereby adjusting the voltage of the output signal to meet the voltage requirements of various testing applications.

[0052] In specific implementation, the first to fifth switches can be relays or switching devices such as transistors. As long as they can be opened or closed by signal control, they can be used in the above embodiments of this application.

[0053] In some embodiments, the power module is a single-output non-isolated point-of-load power module, and the model of the single-output non-isolated point-of-load power module is PTH05060W. In this embodiment, the input terminal 2 of the power module is the second pin of PTH05060W, the enable control terminal 3 is the third pin of PTH05060W, the fourth output control terminal 4 is the fourth pin of PTH05060W, the output terminal 6 is the sixth pin of PTH05060W, the third output control terminal 8 is the eighth pin of PTH05060W, the first output control terminal 9 is the ninth pin of PTH05060W, the second output control terminal 11 is the tenth pin of PTH05060W, the ground terminal 1 / 7 is the first and seventh pins of PTH05060W, and the output remote sensing terminal 5 is the fifth pin of PTH05060W.

[0054] In one specific embodiment, the test circuit is mounted on a circuit board, and the power module is connected to each module in the test circuit via a test socket mounted on the circuit board. The test socket uses a Kelvin two-wire connection. Taking the PTH05060W as an example, this device has 10 pins, so the test socket is designed as follows: Figure 4 The device has 20 connection terminals, with each pin connected to two test socket terminals. In this configuration, pin 8 can be connected to the second control module 50 via two connection terminals, allowing it to receive an input signal through one test socket terminal and then feed back the Vo2 output signal through the other test socket terminal.

[0055] Furthermore, the first input unit 21 and the second input unit 22 can also provide input signals and turn-on signals to the power module through the connection terminal of a test socket, and receive feedback signals of the input signals and turn-on signals through the connection terminal of another test socket to verify the accuracy of the input signals and turn-on signals.

[0056] In a more specific embodiment, the test socket is connected to the power module using a non-plugging locking method, which ensures measurement accuracy, as well as the stability and reliability of the test.

[0057] In practical implementation, each module of the above-mentioned test circuit receives the DCsource 2F+, DC source 3F+, DC source 4F+, and DC source 5F+ signals, as well as the L2+, L3+, L4+, and L5+ signals provided by the test system via adapter sockets. Specifically, a 50A high-current adapter socket is used to receive the DC source 2F+, DC source 3F+, DC source 4F+, and DC source 5F+ signals, while a 96-pin adapter socket is used for L2+, L3+, L4+, and L5+ signals. The test system providing these signals can be the NHR5700 test system.

[0058] It should be noted that, unless otherwise defined, the technical or scientific terms used in the embodiments of this application should have the ordinary meaning understood by one of ordinary skill in the art to which this application pertains. The terms "first," "second," and similar terms used in the embodiments of this application do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are only used to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0059] Based on the same inventive concept, and corresponding to the circuits of any of the above embodiments, this application also provides a power module testing method based on the circuit, including:

[0060] The input module provides the input signal and the power-on signal to the power module.

[0061] The first control module provides the first output control signal or the second output control signal to the power module.

[0062] The output module receives the output signal and obtains the test result based on the output signal.

[0063] Using the above-described test circuit, when the first output control signal is provided to the power module through the first control module, the downward fine-tuning function of the power module's output voltage can be tested. When the second output control signal is provided to the power module through the first control module, the upward fine-tuning function of the power module's output voltage can be tested. This enables the testing of multiple operating modes of the power module, meets the testing requirements of various application scenarios, and the circuit provided in this application can complete the switching of multiple operating modes without changing the external connection method, reducing the interference introduced by circuit switching.

[0064] Based on the same inventive concept, and corresponding to the circuits of any of the above embodiments, this application also provides a power module testing method based on the circuit, including:

[0065] The input module provides the input signal and the power-on signal to the power module.

[0066] The third output control signal is provided to the power module through the second control module;

[0067] The output module and the second control module receive the output signal and obtain the test result based on the output signal.

[0068] Using the above-described test circuit, when the third output control signal is provided to the power module through the second control module, the output tracking function of the power module can be tested, realizing the testing of multiple working modes of the power module and meeting the testing requirements of various application scenarios. Furthermore, the circuit provided in this application can complete the switching of multiple working modes without changing the external connection method, reducing the interference introduced by circuit switching.

[0069] The methods described above are used in the corresponding power module test circuits of any of the foregoing embodiments and have the beneficial effects of the corresponding embodiments, which will not be repeated here.

[0070] It should be noted that the method in this embodiment can be executed by a single device, such as a computer or server. The method can also be applied in a distributed scenario, where multiple devices cooperate to complete the task. In such a distributed scenario, one of these devices may execute only one or more steps of the method in this embodiment, and the multiple devices will interact with each other to complete the method described.

[0071] It should be noted that the above description describes some embodiments of this application. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recorded in the claims can be performed in a different order than that shown in the above embodiments and still achieve the desired result. Furthermore, the processes depicted in the drawings do not necessarily require a specific or sequential order to achieve the desired result. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0072] Based on the same inventive concept, corresponding to the methods of any of the above embodiments, this application also provides an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the program to implement the power module testing method described in any of the above embodiments.

[0073] Figure 5 This embodiment illustrates a more specific hardware structure of an electronic device, which may include a processor 1010, a memory 1020, an input / output interface 1030, a communication interface 1040, and a bus 1050. The processor 1010, memory 1020, input / output interface 1030, and communication interface 1040 are interconnected internally via the bus 1050.

[0074] The processor 1010 can be implemented using a general-purpose CPU (Central Processing Unit), microprocessor, application-specific integrated circuit (ASIC), or one or more integrated circuits, and is used to execute relevant programs to implement the technical solutions provided in the embodiments of this specification.

[0075] The memory 1020 can be implemented in the form of ROM (Read Only Memory), RAM (Random Access Memory), static storage device, dynamic storage device, etc. The memory 1020 can store the operating system and other applications. When the technical solutions provided in the embodiments of this specification are implemented by software or firmware, the relevant program code is stored in the memory 1020 and is called and executed by the processor 1010.

[0076] The input / output interface 1030 is used to connect input / output modules to realize information input and output. Input / output modules can be configured as components within the device (not shown in the figure) or externally connected to the device to provide corresponding functions. Input devices may include keyboards, mice, touchscreens, microphones, various sensors, etc., while output devices may include displays, speakers, vibrators, indicator lights, etc.

[0077] The communication interface 1040 is used to connect a communication module (not shown in the figure) to enable communication between this device and other devices. The communication module can communicate via wired means (such as USB, Ethernet cable, etc.) or wireless means (such as mobile network, WIFI, Bluetooth, etc.).

[0078] Bus 1050 includes a pathway for transmitting information between various components of the device, such as processor 1010, memory 1020, input / output interface 1030, and communication interface 1040.

[0079] It should be noted that although the above-described device only shows the processor 1010, memory 1020, input / output interface 1030, communication interface 1040, and bus 1050, in specific implementations, the device may also include other components necessary for normal operation. Furthermore, those skilled in the art will understand that the above-described device may only include the components necessary for implementing the embodiments of this specification, and not necessarily all the components shown in the figures.

[0080] The electronic devices described above are used to implement the corresponding power module testing methods in any of the foregoing embodiments, and have the beneficial effects of the corresponding method embodiments, which will not be repeated here.

[0081] Based on the same inventive concept, corresponding to the methods of any of the above embodiments, this application also provides a non-transitory computer-readable storage medium that stores computer instructions for causing the computer to execute the power module testing method as described in any of the above embodiments.

[0082] The computer-readable medium of this embodiment includes permanent and non-permanent, removable and non-removable media, and information storage can be implemented by any method or technology. Information can be computer-readable instructions, data structures, program modules, or other data. Examples of computer storage media include, but are not limited to, phase-change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technologies, CD-ROM, digital versatile optical disc (DVD) or other optical storage, magnetic tape, magnetic magnetic disk storage or other magnetic storage devices, or any other non-transfer medium that can be used to store information accessible by a computing device.

[0083] The computer instructions stored in the storage medium of the above embodiments are used to cause the computer to execute the power module testing method as described in any of the above embodiments, and have the beneficial effects of the corresponding method embodiments, which will not be repeated here.

[0084] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of this application (including the claims) is limited to these examples; within the framework of this application, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of different aspects of the embodiments of this application as described above, which are not provided in the details for the sake of brevity.

[0085] Additionally, to simplify the description and discussion, and to avoid obscuring the embodiments of this application, the well-known power / ground connections to integrated circuit (IC) chips and other components may or may not be shown in the provided drawings. Furthermore, the apparatus may be shown in block diagram form to avoid obscuring the embodiments of this application, and this also takes into account the fact that the details of the implementation of these block diagram apparatuses are highly dependent on the platform on which the embodiments of this application will be implemented (i.e., these details should be fully understood by those skilled in the art). While specific details (e.g., circuits) have been set forth to describe exemplary embodiments of this application, it will be apparent to those skilled in the art that the embodiments of this application can be implemented without these specific details or with variations thereof. Therefore, these descriptions should be considered illustrative rather than restrictive.

[0086] Although this application has been described in conjunction with specific embodiments thereof, many substitutions, modifications, and variations of these embodiments will be apparent to those skilled in the art from the foregoing description. For example, other memory architectures (e.g., dynamic RAM (DRAM)) may be used with the embodiments discussed.

[0087] The embodiments of this application are intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the embodiments of this application should be included within the protection scope of this application.

Claims

1. A power module test circuit, characterized in that, Configured as a test power supply module, the test circuit includes an input module, an output module, a first control module, and a second control module, wherein: The input module is connected to the input terminal and the enable control terminal of the power module, and is configured to provide input signals and enable signals to the power module. The output module is connected to the output terminal of the power module and the peripheral load, and is configured to receive the output signal output by the power module to the peripheral load; The first control module is connected to the first output control terminal and the second output control terminal of the power module, and is configured to provide a first output control signal to the first output control terminal or a second output control signal to the second output control terminal; The second control module is connected to the third output control terminal of the power module and is configured to provide a third output control signal to the power module and receive the output signal together with the output module; Wherein, the first output control terminal is an output voltage buck adjustment terminal, the second output control terminal is an output voltage boost adjustment terminal, and the third output control terminal is an external output tracking control terminal; The second control module includes a first input terminal, a second input terminal, and an output terminal; The first input terminal of the second control module is configured to receive the initial third output control signal and the third output control compensation signal; The output terminal and the second input terminal of the second control module are both connected to the third output control terminal of the power module. The output terminal of the second control module is configured to provide a third output control signal to the power module, and the second input terminal of the second control module is configured to receive the output signal together with the output module.

2. The circuit according to claim 1, characterized in that, The input module includes a first input unit and a second input unit; The input terminal of the first input unit is configured to receive an initial input signal and an input compensation signal, and the output terminal of the first input unit is connected to the input terminal of the power module and is configured to provide the input signal to the power module. The input terminal of the second input unit is configured to receive an initial enable signal and an enable compensation signal, and the output terminal of the second input unit is connected to the enable control terminal of the power module and is configured to provide the enable signal to the power module. The second input unit includes a first switch, one end of which is connected to the enable control terminal of the power module, and the other end is grounded. The first switch is configured to open or close under the control of a first switch signal.

3. The circuit according to claim 1, characterized in that, The first control module further includes a first control unit, a second switch, and a third switch. A first output terminal of the first control unit is connected to one end of the second switch, a second output terminal of the first control unit is connected to one end of the third switch, the other end of the second switch is connected to the first output control terminal of the power module, and the other end of the third switch is connected to the second output control terminal of the power module. Wherein: The input terminal of the first control unit is configured to receive an initial first output control signal and a first output control compensation signal, and under the control of the switch control signal, provide the first output control signal to the second switch through the first output terminal, or provide the second output control signal to the third switch through the second output terminal; Both the second switch and the third switch are configured to open or close under the control of the second switch signal.

4. The circuit according to claim 1, characterized in that, The second control module includes a fourth switch, one end of which is connected to the first input terminal of the second control module, and the other end of which is connected to the output terminal and the second input terminal of the second control module. The fourth switch is configured to open or close under the control of the third switch signal.

5. The circuit according to claim 1, characterized in that, It also includes a third control module, which includes a fifth switch and a variable resistor unit. One end of the fifth switch is connected to the fourth output control terminal of the power module, and the other end is connected to one end of the variable resistor unit. The fifth switch is configured to open or close under the control of the fourth switch signal. The other end of the variable resistor unit is grounded.

6. The circuit according to claim 1, characterized in that, The power module is a single-output non-isolated point-of-load power module, and the model number of the single-output non-isolated point-of-load power module is PTH05060W.

7. A power module testing method based on the circuit according to any one of claims 1 to 6, characterized in that, include: The input module provides the input signal and the power-on signal to the power module. The first control module provides the first output control signal or the second output control signal to the power module. The output module receives the output signal and obtains the test result based on the output signal.

8. A power module testing method based on the circuit according to any one of claims 1 to 6, characterized in that, include: The input module provides the input signal and the power-on signal to the power module. The third output control signal is provided to the power module through the second control module; The output module and the second control module receive the output signal and obtain the test result based on the output signal.

9. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that, When the processor executes the program, it implements the method as described in claim 7 or 8.

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