CN216696547U - Integrated circuit device - Google Patents

Integrated circuit device Download PDF

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CN216696547U
CN216696547U CN202122480128.0U CN202122480128U CN216696547U CN 216696547 U CN216696547 U CN 216696547U CN 202122480128 U CN202122480128 U CN 202122480128U CN 216696547 U CN216696547 U CN 216696547U
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power conversion
circuit
interface
power
conversion circuit
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梁海刚
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Meiken Semiconductor Technology Co ltd
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Meiken Semiconductor Technology Co ltd
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Abstract

An embodiment of the application provides an integrated circuit device and an integrated test method, wherein the integrated circuit device comprises: the power supply, the control unit, the power conversion unit and at least two different types of loads; the output end of the power supply is connected with the first input end of the auxiliary circuit, the first output end of the auxiliary circuit is connected with the first input end of the control unit, and the output end of the control unit is connected with the second input end of the auxiliary circuit; the second output end of the auxiliary circuit is connected with a first type test interface, and the first type test interface is connected with the first input end of the power conversion circuit; the third output end of the auxiliary circuit is connected with the second input end of the power conversion circuit; the first output end of the power conversion circuit is connected with the third input end of the auxiliary circuit; the fourth output end of the auxiliary circuit is connected with the second input end of the control unit; the second output end of the power conversion circuit is connected with the second type test interface; the second type of test interface is connected to the load.

Description

Integrated circuit device
Technical Field
The present disclosure relates to integrated circuit testing technologies, and more particularly, to an integrated circuit device and an integrated testing method.
Background
In the related art, the dynamic and static characteristic test of a Power device in an Intelligent Power Module (IPM) in an energy conversion device and the system test of the energy conversion device are realized by adopting two different devices, the dynamic and static test result of the Power device in the IPM by the traditional double-pulse test device has a difference from the practical application, the practical continuous operation working condition cannot be simulated, and the system test efficiency of the energy conversion device is low.
SUMMERY OF THE UTILITY MODEL
Embodiments of the present application are directed to an integrated circuit device and an integrated test method.
In a first aspect, an embodiment of the present application provides an integrated circuit device, including: the power supply, the control unit, the power conversion unit and at least two different types of loads; the power conversion unit comprises an auxiliary circuit, a first type of test interface, a second type of test interface and a power conversion circuit;
the output end of the power supply is connected with the first input end of the auxiliary circuit, the first output end of the auxiliary circuit is connected with the first input end of the control unit, and the output end of the control unit is connected with the second input end of the auxiliary circuit; the second output end of the auxiliary circuit is connected with the first type test interface, and the first type test interface is connected with the first input end of the power conversion circuit; the third output end of the auxiliary circuit is connected with the second input end of the power conversion circuit; the first output end of the power conversion circuit is connected with the third input end of the auxiliary circuit; a fourth output end of the auxiliary circuit is connected with a second input end of the control unit; a second output end of the power conversion circuit is connected with the second type test interface; the second type test interface is connected with the load;
The auxiliary circuit is used for carrying out power supply change on alternating current voltage signals provided by the power supply and correspondingly outputting the obtained direct current voltage signals with different amplitudes to the power conversion circuit, the control unit and the auxiliary circuit per se; amplifying the control signal output by the control unit to obtain a driving signal for driving a power device in the power conversion circuit; detecting an output voltage signal in the power conversion circuit, and outputting the output voltage signal to the control unit so that the control unit can generate the control signal;
the power conversion circuit is used for performing power conversion on the direct-current voltage signal input by the auxiliary circuit to obtain a voltage output signal of a target amplitude and a target frequency so as to supply power to the load;
the first type test interface is used for providing a test port for measuring current parameters of a power device in the power conversion circuit and input power of the power conversion unit;
the second type test interface is used for providing a test port for measuring the voltage parameter of a power device in the power conversion circuit and the output power of the power conversion unit.
In a second aspect, an embodiment of the present application provides an integration test method for an integrated circuit device, applied to a control unit in the device, including:
acquiring load information in the integrated circuit device;
generating a first control signal under the condition that the load information indicates that a load connected in the integrated circuit device is an inductive load, so that characteristic parameters of a power device in the integrated circuit device can be obtained by testing a first type of test interface and a second type of test interface in the integrated circuit device based on the first control signal; the first control signal is a double-pulse control signal.
In the embodiment of the application, under the condition that a power supply, a control unit and a load are the same as those of the energy conversion device to be detected, and the component layout and the circuit layout in the power conversion unit in the energy conversion device to be detected are the same as those in the power conversion unit, the characteristic parameters of a power device in the power conversion unit in the energy conversion device to be detected and the system test result of the energy conversion device to be detected can be obtained by testing the first type test interface and the second type test interface on the integrated circuit device, so that the system test efficiency of the energy conversion device is high.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the application.
Fig. 1 is a schematic diagram illustrating a component structure of an integrated circuit device according to an embodiment of the present disclosure;
FIG. 2 is a schematic diagram of another integrated circuit device according to an embodiment of the present disclosure;
FIG. 3 is a connection diagram illustrating a component structure of another integrated circuit device according to an embodiment of the present disclosure;
FIG. 4 is a schematic diagram of another integrated circuit device according to an embodiment of the present disclosure;
fig. 5 is a schematic diagram illustrating a structure of another integrated circuit device according to an embodiment of the present disclosure;
fig. 6 is a schematic flowchart illustrating an implementation flow of an integration test method for an integrated circuit device according to an embodiment of the present disclosure;
FIG. 7 is a flowchart illustrating an implementation of another method for integrated testing of an integrated circuit device according to an embodiment of the present disclosure;
FIG. 8 is a flowchart illustrating an implementation of another method for integrated testing of an integrated circuit device according to an embodiment of the present disclosure;
Fig. 9 is a schematic structural diagram of a component of an Insulated Gate Bipolar Transistor (IGBT) integrated test device according to an embodiment of the present disclosure;
fig. 10 is a schematic structural diagram of another IGBT integration test apparatus provided in the embodiment of the present application;
fig. 11 is a schematic structural diagram of a component of another IGBT integration test device provided in the embodiment of the present application.
Detailed Description
The present application will be described in further detail below with reference to the accompanying drawings and examples. It should be understood that the examples provided herein are merely illustrative of the present application and are not intended to limit the present application. In addition, the following examples are provided as partial examples for implementing the present application, not all examples for implementing the present application, and the technical solutions described in the examples of the present application may be implemented in any combination without conflict.
It should be noted that in the embodiments of the present application, the terms "comprises", "comprising" or any other variation thereof are intended to cover a non-exclusive inclusion, so that a method or apparatus including a series of elements includes not only the explicitly recited elements but also other elements not explicitly listed or inherent to the method or apparatus. Without further limitation, the use of the phrase "including a. -. said." does not exclude the presence of other elements (e.g., steps in a method or elements in a device, such as portions of circuitry, processors, programs, software, etc.) in the method or device in which the element is included.
The term "and/or" herein is merely an association relationship describing an associated object, and means that there may be three relationships, e.g., U and/or W, which may mean: u exists alone, U and W exist simultaneously, and W exists alone. In addition, the term "at least one" herein means any one of a plurality or any combination of at least two of a plurality, for example, including at least one of U, W, V, and may mean including any one or more elements selected from the group consisting of U, W and V.
The IGBT dynamic and static testing device and the energy conversion device in the energy conversion device are different devices respectively, the IGBT dynamic and static testing device can only be used for IGBT dynamic and static testing, and the energy conversion device is only used for system testing.
The following problems exist in the prior art:
(1) because the IGBT dynamic and static test device is different from the actual energy conversion device in the aspects of component layout, wiring and the like, the dynamic and static characteristic test result is different from the actual application, and the actual continuous operation working condition cannot be simulated;
(2) the existing energy conversion device does not consider the dynamic and static test requirements of the IGBT and does not set related functions, so that the debugging efficiency and the fault problem solving efficiency of the energy conversion device are lower.
Based on the above technical problem, an embodiment of the present application provides an integrated circuit device, which can perform a dynamic and static performance test on an IGBT of a power conversion unit in an energy conversion device, and also can perform a system test on the energy conversion device.
Fig. 1 is a schematic diagram of a component structure of an integrated circuit device according to an embodiment of the present disclosure, and as shown in fig. 1, the integrated circuit device includes: a power supply 101, a control unit 102, a power conversion unit 103, and at least two different types of loads 104; the power conversion unit 103 comprises an auxiliary circuit 1031, a first type test interface 1032, a second type test interface 1033 and a power conversion circuit 1034;
an output of the power supply 101 is connected to a first input of the auxiliary circuit 1031, a first output of the auxiliary circuit 1031 is connected to a first input of the control unit 102, and an output of the control unit 102 is connected to a second input of the auxiliary circuit 1031; a second output terminal of the auxiliary circuit 1031 is connected to the first type test interface 1032, and the first type test interface 1032 is connected to a first input terminal of the power conversion circuit 1034; a third output terminal of the auxiliary circuit 1031 is connected to a second input terminal of the power conversion circuit 1034; a first output terminal of the power conversion circuit 1034 is connected to a third input terminal of the auxiliary circuit 1031; a fourth output of the auxiliary circuit 1031 is connected to a second input of the control unit 102; a second output terminal of the power conversion circuit 1034 is connected to the second type test interface 1033; the second-type test interface 1033 is connected to the load 104;
The auxiliary circuit 1031 is configured to perform power supply variation on the ac voltage signal provided by the power supply 101, and correspondingly output the obtained dc voltage signals with different amplitudes to the power conversion circuit 1034, the control unit 102, and the auxiliary circuit 1031 itself; amplifying the control signal output by the control unit 102 to obtain a driving signal for driving a power device in the power conversion circuit 1034; detecting an output voltage signal in the power conversion circuit 1034 and outputting the output voltage signal to the control unit 102 for the control unit 102 to generate the control signal;
the power conversion circuit 1034 is configured to perform power conversion on the dc voltage signal input by the auxiliary circuit 1031 to obtain a voltage output signal with a target amplitude and a target frequency, so as to supply power to the load 104;
the first-class test interface 1032 is configured to provide a test port for measuring current parameters of a power device in the power conversion circuit 1034 and input power of the power conversion circuit 1034;
the second test interface 1033 is configured to provide a test port for measuring a voltage parameter of a power device in the power conversion circuit 1034 and an output power of the power conversion circuit 1034.
In some possible embodiments, the power supply 101 may be an ac 220V (volt) power supply; the control Unit 102 may be at least one of an Application Specific Integrated Circuit (ASIC), a Digital Signal Processor (DSP), a Digital Signal Processing Device (DSPD), a Programmable Logic Device (PLD), an FPGA, a Central Processing Unit (CPU), a controller, a microcontroller, and a microprocessor.
In some examples, the power conversion unit 103 may be a conversion device that converts an input fixed-frequency alternating voltage into a frequency-variable alternating voltage; for example, the power conversion unit 103 may be an auxiliary circuit 1031 including IPM modules and assisting the operation of the IPM modules. The power conversion unit 103 may convert the ac power with fixed frequency into dc power, and then convert the dc power into ac power with variable frequency and amplitude through the IPM module for output.
In some embodiments, the IPM module is an implementation of power conversion circuit 1034.
It is understood that the load 104 may be different types of loads under different scenarios, for example, for a scenario of a dynamic and static performance test of the power device, the load 104 is an inductive load; for scenarios where it is desirable to simulate the real operation of a power plant, the load 104 may be a real compressor.
In some embodiments, the power source 101, the control unit 102, and the load 104 are the same as the energy conversion device to be tested; the power conversion unit 103 is the same as the component layout and the circuit layout in the power conversion unit in the energy conversion device to be detected; the power conversion unit 103 is different from the power conversion unit in the energy conversion device to be detected in that a first type test interface 1032 is provided on a connection line between the second output terminal of the auxiliary circuit 1031 of the power conversion unit 103 and the first input terminal of the power conversion circuit 1034, and a second type test interface is provided on a connection line between the second output terminal of the power conversion circuit 1034 and the load 104.
It can be understood that, since the first type test interface 1032 and the second type test interface 1033 are both lead-out lines or lead-out test points for components or circuits inside the power conversion unit 103, and no device or circuit that affects the operation of the power conversion unit 103 is added, the operation of the power conversion unit 103 is almost equivalent to that of the power conversion unit in the energy conversion device to be detected.
In some possible embodiments, where the power device in power conversion circuit 1034 includes an IGBT, the current parameter of the power device includes at least the current on the collector of the power device; in the case where the power device in the power conversion circuit 1034 includes a Fast Recovery Diode (FRD), the current parameter of the power device includes at least a current spike of the power device.
In some possible embodiments, where the power device in power conversion circuit 1034 comprises an IGBT, the voltage parameters of the power device comprise at least a collector-emitter voltage VCEGate-emitter voltage VGEAnd a conduction voltage drop VCE(sat)(ii) a In the case where the power device in the power conversion circuit 1034 includes an FRD, the voltage parameter of the power device includes at least a voltage spike of the power device.
It can be understood that the switching characteristic parameters of the power device, such as the turn-on delay time, the turn-on rise time, the turn-off delay time, the turn-off fall time, the turn-on loss, the turn-off loss, the switching loss, the safe operating area, and the like, can be determined by the current parameter and the voltage parameter of the power device in the power conversion circuit 1034.
It can be understood that, since the first type test interface 1032 and the second type test interface 1033 may be used for testing the switching characteristics of the power device in the power conversion circuit, in a case that the power device in the power conversion circuit operates in a high voltage state, both the first type test interface 1032 and the second type test interface 1033 are test interfaces for testing a high voltage signal.
In the embodiment of the application, under the condition that a power supply, a control unit and a load are the same as those of the energy conversion device to be detected, and the component layout and the circuit layout in the power conversion unit in the energy conversion device to be detected are the same as those in the power conversion unit, the characteristic parameters of a power device in the power conversion unit in the energy conversion device to be detected and the system test result of the energy conversion device to be detected can be obtained by testing the first type test interface and the second type test interface on the integrated circuit device, so that the system test efficiency of the energy conversion device is high.
Fig. 2 is a schematic diagram of a composition structure of another integrated circuit device according to an embodiment of the present disclosure, and as shown in fig. 2, the integrated circuit device includes: a power supply 201, a control unit 202, a power conversion unit 203, and at least two different types of loads 204; the power conversion unit 203 includes an auxiliary circuit 2031, a first type test interface 2032, a second type test interface 2033, and a power conversion circuit 2034; the first type of test interface 2032 comprises a first sub-interface 2032' and a second sub-interface 2032 "; the second type of test interface 2033 comprises a third sub-interface 2033' and a fourth sub-interface 2033 ";
an output terminal of the power supply 201 is connected to a first input terminal of the auxiliary circuit 2031, a first output terminal of the auxiliary circuit 2031 is connected to a first input terminal of the control unit 202, and an output terminal of the control unit 202 is connected to a second input terminal of the auxiliary circuit 2031; a second output terminal of the auxiliary circuit 2031 is connected to the first sub-interface 2032 ', and the first sub-interface 2032' is connected to a first input terminal of the power conversion circuit 2034; the second sub-interface 2032 ″ is connected in a loop of a power device in the power conversion circuit; a third output terminal of the auxiliary circuit 2031 is connected to a second input terminal of the power conversion circuit 2034; a first output terminal of the power conversion circuit 2034 is connected to a third input terminal of the auxiliary circuit 2031; a fourth output terminal of the auxiliary circuit 2031 is connected to a second input terminal of the control unit 202; a second output terminal of the power conversion circuit 2034 is connected to the third sub-interface 2033'; the third sub-interface 2033' is connected to an inductive load in the load 204; the fourth sub-interface 2033 ″ is connected to a pole of a power device in the power conversion circuit 2034;
The auxiliary circuit 2031 is configured to perform power supply change on the ac voltage signal provided by the power supply 201, and correspondingly output the obtained dc voltage signals with different amplitudes to the power conversion circuit 2034, the control unit 202, and the auxiliary circuit 2031 itself; amplifying the control signal output by the control unit 202 to obtain a driving signal for driving a power device in the power conversion circuit 2034; detecting an output voltage signal in the power conversion circuit 2034 and outputting the output voltage signal to the control unit 202 for the control unit 202 to generate the control signal;
the power conversion circuit 2034 is configured to perform power conversion on the dc voltage signal input by the auxiliary circuit 2031 to obtain a voltage output signal with a target amplitude and a target frequency, so as to supply power to an inductive load in the load 204;
the first sub-interface 2032' is used for providing a test port for measuring the input power of the power conversion circuit 2034;
the second sub-interface 2032 ″ is configured to provide a test port for measuring current parameters of power devices in the power conversion unit 203;
the third sub-interface 2033' is used for providing a test port for measuring the output power of the power conversion unit 203;
The fourth sub-interface 2033 ″ is used to provide a test port for measuring current parameters of the power devices in the power conversion circuit 2034.
In the embodiment of the application, because the first sub-interface is connected to a connection line between the second output end of the auxiliary circuit and the first input end of the power conversion circuit, and the second sub-interface is connected to a loop of a power device in the power conversion circuit, the input power of the power conversion circuit can be measured through the first sub-interface, and the current parameter of the power device in the power conversion unit can be measured through the second sub-interface;
the third sub-interface is connected to a connection line between the second output end of the power conversion circuit and the load, and the fourth sub-interface is connected to a pole of a power device of the power conversion circuit, so that the output power of the power conversion unit can be measured through the third sub-interface, and the current parameter of the power device in the power conversion circuit can be measured through the fourth sub-interface.
Fig. 3 is a connection diagram of a structure of another integrated circuit device according to an embodiment of the present disclosure, where as shown in fig. 3, the integrated circuit device includes: a power supply 301, a control unit 302, a power conversion unit 303, and at least two different types of loads 304; the power conversion unit 303 comprises an auxiliary circuit 3031, a first type test interface 3032, a second type test interface 3033, a power conversion circuit 3034, a third type test interface 3035 and a fourth type test interface 3036;
An output end of the power supply 301 is connected to a first input end of the auxiliary circuit 3031, a first output end of the auxiliary circuit 3031 is connected to a first input end of the control unit 302, and an output end of the control unit 302 is connected to a second input end of the auxiliary circuit 3031; a second output terminal of the auxiliary circuit 3031 is connected to the first type test interface 3032, and the first type test interface 3032 is connected to a first input terminal of the power conversion circuit 3034; a third output end of the auxiliary circuit 3031 is connected with the third-class test interface 3035; the third-class test interface 3035 is connected with a second input end of the power conversion circuit 3034; a first output end of the power conversion circuit 3034 is connected with the fourth type test interface 3036; the fourth-type test interface 3036 is connected with a third input end of the auxiliary circuit 3031; a fourth output terminal of the auxiliary circuit 3031 is connected to a second input terminal of the control unit 302; a second output end of the power conversion circuit 3034 is connected with the second type test interface 3033; the second type test interface 3033 is connected with a compressor load in the loads 304;
the auxiliary circuit 3031 is configured to perform power supply change on the ac voltage signal provided by the power supply 301, and correspondingly output the obtained dc voltage signals with different amplitudes to the power conversion circuit 3034, the control unit 302, and the auxiliary circuit 3031; amplifying the control signal output by the control unit 302 to obtain a driving signal for driving a power device in the power conversion circuit 3034; detecting an output voltage signal in the power conversion circuit 3034, and outputting the output voltage signal to the control unit 302, so that the control unit 302 can generate the control signal;
The power conversion circuit 3034 is configured to perform power conversion on the dc voltage signal input by the auxiliary circuit 3031 to obtain a voltage output signal with a target amplitude and a target frequency, so as to supply power to the compressor in the load 304;
the first type test interface 3032 is used for providing a test port for measuring current parameters of a power device in the power conversion circuit 3034 and the input power of the power conversion circuit 3034;
the second-type test interface 3033 is used for providing a test port for measuring voltage parameters of a power device in the power conversion circuit 3034 and the output power of the power conversion circuit 3034;
the third-class test interface 3035 is configured to provide a test interface for measuring a driving signal of the power conversion circuit 3034;
the fourth type test interface 3036 is configured to provide a test port for measuring a signal input by the power conversion circuit 3034 to the auxiliary circuit 3031.
In one possible embodiment, the third type of test interface and the fourth type of test interface are test interfaces operating at low voltage (power).
In the embodiment of the application, as the third type of test interface is arranged on the connecting line between the third output end of the auxiliary circuit and the second input end of the power conversion circuit, the driving signal of the power conversion circuit can be measured through the third type of test interface; a fourth type test interface is arranged on a connecting line between the first output end of the power conversion circuit and the third input end of the auxiliary circuit, so that signals input into the auxiliary circuit by the power conversion circuit can be measured through the fourth type test interface.
Fig. 4 is a schematic structural diagram of another integrated circuit device according to an embodiment of the present disclosure, and as shown in fig. 4, the integrated circuit device includes: a power supply 401, a control unit 402, a power conversion unit 403, and at least two different types of loads 404; the power conversion unit 403 includes an auxiliary circuit 4031, a first type test interface 4032, a second type test interface 4033, a power conversion circuit 4034, and a fifth type test interface 4035; the fifth type of test interface 4035 includes first to fourth interfaces 4035' to 4035 "";
the output end of the power supply 401 is connected with a first interface 4035'; the first interface 4035' is connected to a first input of the auxiliary circuit 4031; a first output end of the auxiliary circuit 4031 is connected with a second interface 4035 "; the second interface 4035 "is connected to a first input terminal of the control unit 402, an output terminal of the control unit 402 is connected to a third interface 4035" ', and the third interface 4035 "' is connected to a second input terminal of the auxiliary circuit 4031; a second output end of the auxiliary circuit 4031 is connected to the first type test interface 4032, and the first type test interface 4032 is connected to a first input end of the power conversion circuit 4034; a third output terminal of the auxiliary circuit 4031 is connected to a second input terminal of the power conversion circuit 4034; a first output terminal of the power conversion circuit 4034 is connected to a third input terminal of the auxiliary circuit 4031; a fourth output end of the auxiliary circuit 4031 is connected with a fourth interface 4035 ""; the fourth interface 4035 "" is connected to a second input terminal of the control unit 402; a second output end of the power conversion circuit 4034 is connected to the second type test interface 4033; the second type test interface 4033 is connected to a compressor load of the loads 404;
The auxiliary circuit 4031 is configured to perform power supply change on an ac voltage signal provided by the power supply 401, and correspondingly output the obtained dc voltage signals with different amplitudes to the power conversion circuit 4034, the control unit 402, and the auxiliary circuit 4031 itself; amplifying the control signal output by the control unit 402 to obtain a driving signal for driving a power device in the power conversion circuit 4034; detecting an output voltage signal in the power conversion circuit 4034, and outputting the output voltage signal to the control unit 402, so that the control unit 402 can generate the control signal;
the power conversion circuit 4034 is configured to perform power conversion on the dc voltage signal input by the auxiliary circuit 4031 to obtain a voltage output signal with a target amplitude and a target frequency, so as to supply power to the load 404;
the first type test interface 4032 is used for providing a test port for measuring current parameters of a power device in the power conversion circuit 4034 and input power of the power conversion circuit 1034;
the second type test interface 4033 is configured to provide a test port for measuring a voltage parameter of a power device in the power conversion circuit 4034 and an output power of the power conversion circuit 4034;
The fifth test interface 4035 is configured to provide a test interface for observing the output power signal of the power supply 401, the input power signal and the control signal of the control unit 402, and the feedback signal of the power conversion circuit 4034.
It will be appreciated that the fifth type of test interface is a test interface for observing observable signals.
In the embodiment of the application, a first interface is arranged on a connecting line between the output end of the power supply and the first input end of the auxiliary circuit, so that the output power signal of the power supply can be observed through the first interface; a second interface is arranged on a connecting line between the first output end of the auxiliary circuit and the first input end of the control unit, so that the input power supply signal of the control unit can be observed through the second interface; a third interface is arranged on a connecting line between the output end of the control unit and the second input end of the auxiliary circuit, so that the control signal of the control unit can be observed through the third interface; and a fourth interface is arranged on a connecting line between the fourth output end of the auxiliary circuit and the second input end of the control unit, so that the feedback signal of the power conversion circuit can be observed through the fourth interface.
Fig. 5 is a schematic diagram of a structure of an integrated circuit device according to an embodiment of the present disclosure, where as shown in fig. 5, the integrated circuit device includes:
a power supply 501, a control unit 502, a power conversion unit 503, and at least two different types of loads 504; the power conversion unit 503 includes an auxiliary circuit 5031, a first test interface 5032, a second test interface 5033, and a power conversion circuit 5034; the auxiliary circuit 5031 comprises a power conversion circuit 5031 ', a driving circuit 5031 "and a detection circuit 5031';
the output end of the power supply 501 is connected with the input end of the power conversion circuit 5031'; a first output end of the power conversion circuit 5031' is connected to a first input end of the control unit 502; a second output end of the power conversion circuit 5031' is connected to the first test interface 5032; the first test interface 5032 is connected to a first input terminal of the power conversion circuit 5034; a third output end of the power conversion circuit 5031 'is respectively connected to the first input end of the driving circuit 5031 ″ and the first input end of the detection circuit 5031' ″; the output end of the control unit 502 is connected to the second input end of the driving circuit 5031 "; an output end of the driving circuit 5031 ″ is connected to a second input end of the power conversion circuit 5034; a first output end of the power conversion circuit 5034 is connected to a second input end of the detection circuit 5031' ″; an output end of the detection circuit 5031' "is connected with a second input end of the control unit 502; a second output end of the power conversion circuit 5034 is connected to the second type test interface 5033; the second-type test interface 5033 is connected with the load 504;
The auxiliary circuit 5031 is configured to perform power supply change on the ac voltage signal provided by the power supply 501, and correspondingly output the obtained dc voltage signals with different amplitudes to the power conversion circuit 5034, the control unit 502, and the auxiliary circuit 5031 itself; amplifying the control signal output by the control unit 502 to obtain a driving signal for driving a power device in the power conversion circuit 5034; detecting an output voltage signal in the power conversion circuit 5034 and outputting the output voltage signal to the control unit 502 for the control unit 502 to generate the control signal;
the power conversion circuit 5034 is configured to perform power conversion on the dc voltage signal input by the auxiliary circuit 5031 to obtain a voltage output signal with a target amplitude and a target frequency, so as to supply power to the load 504;
the first test interface 5032 is configured to provide a test port for measuring a current parameter of a power device in the power conversion circuit 5034 and an input power of the power conversion circuit 5034;
the second test interface 5033 is configured to provide a test port for measuring a voltage parameter of a power device in the power conversion circuit 5034 and the output power of the power conversion circuit 5034.
In the embodiment of the application, the power conversion circuit is used for carrying out power conversion on the supplied power to obtain voltage signals with different amplitudes, and the voltage signals are supplied to the driving circuit, the detection circuit, the control circuit and the power conversion circuit; the detection circuit detects the signal input by the power conversion circuit to the auxiliary circuit and inputs the signal to the control unit, so that the control unit can generate a control signal based on the detection signal of the power conversion circuit and input the control signal to the drive circuit, and the drive circuit amplifies the control signal to obtain a drive signal to drive a power device in the power conversion circuit to work. Therefore, the power conversion circuit can be ensured to output a preset power signal according to the preset requirement.
In some embodiments, the power conversion circuit is an intelligent power module IPM; the power device in the power conversion circuit comprises an Insulated Gate Bipolar Transistor (IGBT) and a Fast Recovery Diode (FRD), and the characteristic parameters of the power device in the power conversion unit comprise the switching characteristics of the IGBT and the FRD.
In some embodiments, the switching characteristics of the IGBT and the FRD include characteristic parameters such as delay time, rise time, fall time, turn-on loss, turn-off loss, voltage spike, current spike, safe operating area, and the like.
On the basis of the integrated circuit device, the embodiment of the present application provides an integration test method applied to the control unit in any of the integrated circuit devices.
Fig. 6 is a schematic diagram illustrating an implementation flow of an integration test method for an integrated circuit device according to an embodiment of the present application, where as shown in fig. 6, the flow includes:
step S601: acquiring load information in the integrated circuit device;
in one embodiment, the load information may be a character string representing different types of loads or a number represented by a binary, which is not particularly limited herein. For example, the load information corresponding to an inductive load may be 001; the load information corresponding to the capacitive load may be 010; the load information corresponding to the capacitive load may be 011; the load information corresponding to the real load, for example, the load information corresponding to the compressor may be 100.
For the implementation of obtaining the load information in the integrated circuit device, in one example, the control unit may receive a voltage or current signal of the load during the startup of the integrated circuit device, and determine the type of the load according to the magnitude range or variation of the voltage or current signal.
Step S602: generating a first control signal under the condition that the load information indicates that a load connected in the integrated circuit device is an inductive load, so that characteristic parameters of a power device in the integrated circuit device can be obtained by testing a first type of test interface and a second type of test interface in the integrated circuit device based on the first control signal; the first control signal is a double-pulse control signal.
It is understood that the double pulse control signal may be a control signal for controlling the operation of any of the three phases U, V, W in the case that the Power conversion circuit is an Intelligent Power Module (IPM) and is a three-phase six-Power device.
Here, since the power conversion circuit can accurately test the characteristic parameter of the power device in the power conversion circuit only when the load is an inductor, the test of the characteristic parameter of the power device in the integrated circuit device requires to determine whether the load is an inductor load.
Fig. 7 is a schematic diagram illustrating an implementation flow of another integrated test method for an integrated circuit device according to an embodiment of the present application, where as shown in fig. 7, the flow includes:
step S701: acquiring load information in the integrated circuit device;
step S702: generating a first control signal under the condition that the load information indicates that a load connected in the integrated circuit device is an inductive load, so that characteristic parameters of a power device in the integrated circuit device can be obtained by testing a first type of test interface and a second type of test interface in the integrated circuit device based on the first control signal; the first control signal is a double-pulse control signal;
Step S703: generating a second control signal under the condition that the load information indicates that the load in the integrated circuit device is a real load in a specific scene, so that the performance parameters of the integrated circuit device can be obtained by testing the first type of test interface and the second type of test interface; the second control signal is used for controlling the control signals of all the power devices in the integrated circuit device to work.
Fig. 8 is a schematic diagram illustrating an implementation flow of a further method for integrated test of an integrated circuit device according to an embodiment of the present application, where as shown in fig. 8, the flow includes:
step S801: acquiring a first instruction;
it is to be understood that the first instruction may be a detection trigger operation of a detection person. For example, a single pole double throw switch may be provided in an integrated circuit device for both performance testing and system testing of power devices, and may indicate different testing requirements when the switch is in different states. In one example, the switch open to position 1 indicates that the test requirement is a performance test of the power device; the switch is turned to position 2 indicating that the test request is a system test.
In a possible implementation mode, the first instruction is obtained by receiving an input operation of selecting a test type by a detection person.
Step S802: in the case that the first instruction indicates detection of a characteristic parameter of a power device in the integrated circuit device, switching a load of the integrated circuit device to an inductive load in response to the first instruction, so that the characteristic parameter of the power device in the integrated circuit device can be obtained based on the first type of test interface and the second type of test interface;
in some possible embodiments, a control switch is arranged between the power conversion circuit and the loads of different types.
In one embodiment, when the first instruction indicates that the characteristic parameter of the power device in the integrated circuit apparatus is detected, the control unit may generate a control signal for connecting the power conversion circuit to the inductive load in response to the first instruction, so that the characteristic parameter of the power device in the integrated circuit apparatus is obtained based on the first type of test interface and the second type of test interface.
Step S803: under the condition that the first instruction indicates that the performance parameters of the integrated circuit device are detected, responding to the first instruction, and switching the load of the integrated circuit device to be the real load under a specific scene, so that the performance parameters of the integrated circuit device can be obtained by testing the first type of test interface and the second type of test interface;
in one embodiment, in a case where the first instruction indicates that the performance parameter of the integrated circuit device is detected, the load of the integrated circuit device is switched to a real load in a specific scenario in response to the first instruction, so that the performance parameter of the integrated circuit device can be obtained by testing the first type of test interface and the second type of test interface.
Step S804: acquiring load information in the integrated circuit device;
Step S805: generating a first control signal under the condition that the load information indicates that a load connected in the integrated circuit device is an inductive load, so that characteristic parameters of a power device in the integrated circuit device can be obtained by testing a first type of test interface and a second type of test interface in the integrated circuit device based on the first control signal; the first control signal is a double-pulse control signal.
Fig. 9 is a schematic structural diagram of a component of an IGBT integration test device provided in an embodiment of the present application, and as shown in fig. 9, the IGBT integration test device mainly includes 5 modules, such as a power supply 901, a control unit 902, a power conversion unit 903, and a load 904. The power conversion unit 903 includes a power conversion module 9031, a driving circuit 9032, a detection circuit 9033, and a power conversion circuit 9034.
The operating principle of the IGBT integration test device 90 is:
(1) the power supply 901 transmits alternating current or direct current to the power conversion circuit 9031 through the test interface 1, and a first output of the power conversion circuit 9031 provides a converted direct current power to the power conversion circuit 903 through the test interface 2; the second output dc power of the power conversion circuit 9031 is provided to the control unit 902 through the test interface 3; the third path of the power conversion circuit 9031 outputs a direct-current power supply to the driving circuit 9032 and the detection circuit 9033;
(2) The control unit 902 detects a signal related to the power conversion circuit 9034 through the detection circuit 9033, sends a control instruction after comparing the signal with a setting signal, and controls the on and off of a power device in the power conversion circuit 9034 through the driving circuit 9032; the power conversion circuit 9034 is connected with the detection circuit 9033 through the test interface 4; the detection circuit 9033 is connected with the control unit 902 through a test interface 5; the control unit 902 is connected with the driving circuit 9032 through the test interface 6; the driving circuit 9032 is connected with the power conversion circuit 9034 through the test interface 7;
(3) the power conversion circuit 903 outputs a voltage signal through the test interface 8 to drive the load 904 to operate.
Fig. 10 is a schematic diagram of a composition structure of another IGBT integration test device according to an embodiment of the present disclosure, and as shown in fig. 10, the IGBT integration test device and the IGBT integration test device in fig. 9 have the same composition of circuits or units, where a power supply 901 'adopts a single-phase alternating current AC220V power supply input, a diode rectifier circuit in a power conversion circuit 9031' converts AC220V electricity into direct current DC310V electricity to provide direct current voltage for an IPM module 9034 ', the direct current DC-DC conversion circuit in the power conversion circuit 9031' converts the direct current into +15V and +5V direct current to provide direct current for a driving circuit 9032 ', a detection circuit 9033', a control unit 902 ', an IPM module 9034', the IPM module 9034 'is connected to an inductive load 904', the control unit 902 'sets double pulses, and an interface circuit around the IPM module 9034' can check IGBT and FRD switching characteristics (delay time, phase, and phase of the phase change of the IGBT integrated test device can be detected by using an interface circuit around the IPM integrated test device, Rise time, fall time, turn-on loss, turn-off loss, etc.), whether the actual energy conversion device requirements are met is determined.
In the embodiment of the application, the power conversion unit PCB is designed according to the layout of components and routing of the actual energy conversion device, and the dynamic and static tests of the power device in the IPM and the tests of the energy conversion device are respectively realized.
Fig. 11 is a schematic structural diagram of a component of another IGBT integration test device provided in an embodiment of the present application, and as shown in fig. 11, the IGBT integration test device has the same components as each circuit or unit of the IGBT integration test device in fig. 10, except that a load 904' in fig. 10 is an inductive load, and a load 904 ″ in fig. 11 is a compressor. It can be seen that the load is changed into the compressor from the inductor, the control unit drives the compressor to work according to the program of the energy conversion device, and the waveform conditions of related signals, the IGBT and the FRD in the IPM under the continuous working condition can be observed through the test interface in the next figure, so as to test whether the software and hardware functional performance meets the requirements or not.
The foregoing description of the various embodiments is intended to highlight different aspects of the various embodiments that are the same or similar, which can be referenced with one another and therefore are not repeated herein for brevity.
The methods disclosed in the method embodiments provided by the present application can be combined arbitrarily without conflict to obtain new method embodiments.
Features disclosed in various product embodiments provided by the application can be combined arbitrarily to obtain new product embodiments without conflict.
The features disclosed in the various method or phase shifter embodiments provided herein may be combined in any combination to yield new method embodiments or apparatus embodiments without conflict.
While the embodiments of the present application have been described in connection with the drawings, the present application is not limited to the above-described embodiments, which are intended to be illustrative rather than restrictive, and many modifications may be made by one skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (7)

1. An integrated circuit device, comprising:
the power supply, the control unit, the power conversion unit and at least two different types of loads; the power conversion unit comprises an auxiliary circuit, a first type test interface, a second type test interface and a power conversion circuit;
the output end of the power supply is connected with the first input end of the auxiliary circuit, the first output end of the auxiliary circuit is connected with the first input end of the control unit, and the output end of the control unit is connected with the second input end of the auxiliary circuit; the second output end of the auxiliary circuit is connected with the first type test interface, and the first type test interface is connected with the first input end of the power conversion circuit; the third output end of the auxiliary circuit is connected with the second input end of the power conversion circuit; the first output end of the power conversion circuit is connected with the third input end of the auxiliary circuit; a fourth output end of the auxiliary circuit is connected with a second input end of the control unit; a second output end of the power conversion circuit is connected with the second type test interface; the second type test interface is connected with the load;
The auxiliary circuit is used for carrying out power supply change on alternating current voltage signals provided by the power supply and correspondingly outputting the obtained direct current voltage signals with different amplitudes to the power conversion circuit, the control unit and the auxiliary circuit per se; amplifying the control signal output by the control unit to obtain a driving signal for driving a power device in the power conversion circuit; detecting an output voltage signal in the power conversion circuit, and outputting the output voltage signal to the control unit so that the control unit can generate the control signal;
the power conversion circuit is used for performing power conversion on the direct-current voltage signal input by the auxiliary circuit to obtain a voltage output signal of a target amplitude and a target frequency so as to supply power to the load;
the first type test interface is used for providing a test port for measuring the current parameter of a power device in the power conversion circuit and the input power of the power conversion unit;
the second type test interface is used for providing a test port for measuring the voltage parameter of a power device in the power conversion circuit and the output power of the power conversion unit.
2. The apparatus of claim 1, wherein the second type of test interface is connected to an inductive load of the loads;
the first type of test interface comprises a first sub-interface and a second sub-interface; the second type of test interface comprises a third sub-interface and a fourth sub-interface;
the second output end of the auxiliary circuit is connected with the first sub-interface, and the first sub-interface is connected with the first input end of the power conversion circuit; the second sub-interface is connected in a loop of a power device in the power conversion circuit;
a second output end of the power conversion circuit is connected with the third sub-interface; the third sub-interface is connected with the load; the fourth sub-interface is connected with a pole of a power device in the power conversion circuit;
the first sub-interface is used for providing a test port for measuring the input power of the power conversion circuit;
the second sub-interface is used for providing a test port for measuring current parameters of a power device in the power conversion unit;
the third sub-interface is used for providing a test port for measuring the output power of the power conversion unit;
the fourth sub-interface is used for providing a test port for measuring the current parameter of the power device in the power conversion circuit.
3. The apparatus of claim 1, wherein the power conversion unit further comprises a third type of test interface; the second type of test interface is connected with a compressor load in the loads;
a third output end of the auxiliary circuit is connected with the third type test interface; the third type test interface is connected with a second input end of the power conversion circuit;
the third type test interface is used for providing a test interface for measuring the driving signal of the power conversion circuit.
4. The apparatus of claim 1, wherein the power conversion unit further comprises a fourth type test interface;
the first output end of the power conversion circuit is connected with the fourth type test interface; the fourth type test interface is connected with a third input end of the auxiliary circuit;
the fourth type test interface is used for providing a test port for measuring the signal input into the auxiliary circuit by the power conversion circuit.
5. The apparatus of claim 1, wherein the power conversion unit further comprises a fifth type test interface; the fifth type of test interface comprises first to fourth interfaces;
the output end of the power supply is connected with the first interface; the first interface is connected with a first input end of the auxiliary circuit;
The first output end of the auxiliary circuit is connected with the second interface; the second interface is connected with a first input end of the control unit;
the output end of the control unit is connected with a third interface, and the third interface is connected with the second input end of the auxiliary circuit;
a fourth output end of the auxiliary circuit is connected with a fourth interface, and the fourth interface is connected with a second input end of the control unit;
and the fifth type test interface is used for providing a test interface for observing the output power signal of the power supply, the input power signal and the control signal of the control unit and the feedback signal of the power conversion circuit.
6. The apparatus of any one of claims 1 to 5, wherein the auxiliary circuit comprises a power conversion circuit, a driving circuit and a detection circuit;
the output end of the power supply is connected with the input end of the power supply conversion circuit; the first output end of the power supply conversion circuit is connected with the first input end of the control unit; the second output end of the power supply conversion circuit is connected with the first type test interface; the first type test interface is connected with a first input end of the power conversion circuit; the third output end of the power supply conversion circuit is respectively connected with the first input end of the driving circuit and the first input end of the detection circuit; the output end of the control unit is connected with the second input end of the driving circuit; the output end of the driving circuit is connected with the second input end of the power conversion circuit; the first output end of the power conversion circuit is connected with the second input end of the detection circuit; and the output end of the detection circuit is connected with the second input end of the control unit.
7. The apparatus of any of claims 1 to 5, wherein the power conversion circuit is an intelligent power module IPM; the power device in the power conversion circuit comprises an Insulated Gate Bipolar Transistor (IGBT) and a Fast Recovery Diode (FRD), and the characteristic parameters of the power device in the power conversion unit comprise the switching characteristics of the IGBT and the FRD.
CN202122480128.0U 2021-10-14 2021-10-14 Integrated circuit device Active CN216696547U (en)

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CN202122480128.0U CN216696547U (en) 2021-10-14 2021-10-14 Integrated circuit device

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Application Number Priority Date Filing Date Title
CN202122480128.0U CN216696547U (en) 2021-10-14 2021-10-14 Integrated circuit device

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