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A novel circuit for electric and electronic power module test and pulse control method thereof

A technology of power electronic modules and power modules, which is applied in the direction of electronic circuit testing, measuring electricity, measuring devices, etc., can solve problems such as power module testing difficulties, and achieve the effects of flexible testing, simple circuit installation, and cost reduction

Inactive Publication Date: 2007-09-05
SIEYUAN QINGNENG ELECTRICAL & ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Testing power modules is also becoming more difficult

Method used

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  • A novel circuit for electric and electronic power module test and pulse control method thereof
  • A novel circuit for electric and electronic power module test and pulse control method thereof
  • A novel circuit for electric and electronic power module test and pulse control method thereof

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Experimental program
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Embodiment Construction

[0019] ●The circuit scheme 1 for power module testing proposed by the present invention is shown in Figure 1. This circuit can be used to test four inverter bridge arms: T1a, D1a, and T2a in the single-phase bridge power module 1 , D2a, T3a, D3a, T4a, D4a, D5a, D6a constitute bridge arm 1, T1b, D1b, T2b, D2b, T3b, D3b, T4b, D4b, D5b, D6b constitute bridge arm 2; single-phase bridge power module 2 T1a, D1a, T2a, D2a, T3a, D3a, T4a, D4a, D5a, D6a constitute bridge arm 3, T1b, D1b, T2b, D2b, T3b, D3b, T4b, D4b, D5b, D6b constitute bridge arm 4), four Two inverter bridge arms can form two single-phase bridge inverters. In Figure 1, jX is the large inductance, g1~g8 is the threshold of the power device, an external pulse generator, C 1-1 ~C 2-2 It is a DC pulse capacitor, and ZL1 and ZL2 are three-phase rectifier bridges.

[0020] The working principle of the test circuit in Figure 1 is introduced as follows:

[0021] For the circuit scheme shown in Figure 1, the general pulse ...

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Abstract

The invention relates to a measuring circuit project used in a high pressure large current electric power module measurement in the field of electric measuring technology. It comprises a plurality of high pressure large current electric power modules works on the reversal condition, a high pressure large current reactor, an alternation module which can provide the one-twenty electric power and an electric module impulse driving strategy which can undertake the dc balance of lateral voltage. The invention can do high pressure large current measurement to the high pressure large current power module.

Description

technical field [0001] The invention relates to a test circuit scheme for testing high-voltage and high-current power electronic power modules, and belongs to the technical field of power electronic testing. Background technique [0002] With the continuous advancement of the manufacturing technology of power electronic components, the voltage and current levels of power electronic switching devices continue to increase, so the voltage level and capacity of the power module of the power electronic converter are also increasing. Testing power modules is also becoming increasingly difficult. In order to reduce the test cost, usually only high-voltage low-current test and low-voltage high-current test are performed on high-voltage and high-current power electronic power modules, which are obviously different from the actual working status of high-voltage and high-current power modules. The requirement of module testing for high voltage and high current requires the establishme...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/00G01R31/28
Inventor 姜齐荣沈斐虞苍璧
Owner SIEYUAN QINGNENG ELECTRICAL & ELECTRONICS