Automatic testing device and method of power module

Abstract

The invention discloses an automatic testing device and method of a power module. The automatic testing device is provided with a clamp used for fixing the power module to be tested, wherein the clamp is connected with a relay, the relay is respectively connected with different testing devices and is connected with a controller through a serial port or in other modes, and the controller is connected with all the different testing devices. The automatic testing method is characterized in that the relay is jointed, and the controller reads the practical measurement voltage value of a testing point of the power module to be tested and measured by a universal meter; the controller compares the practical measurement value and the allowed range measurement value of the power module to be tested and stored in the controller; and the testing result of the testing point of the power module to be tested is correct if the practical measurement value is within the allowed range measurement value, otherwise the resting result is wrong. According to the automatic testing device and method of the power module, manual wiring and conversion of various states of products to be tested are not needed, work load is reduced, and testing efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of circuit board testing, in particular to an automatic testing device and method for a power supply module. Background technique [0002] Errors often occur in the power module during factory inspection and actual operation. Because there are many components in the circuit board of the power module and the circuit is complicated, it is difficult to find errors. In the prior art, the fault finding of the power module is manually tested: the power module is tested with a multimeter, an oscilloscope and other test tools against the places where errors may occur, and the test value is analyzed to determine whether it is within the normal range , so as to find the problematic place. This test method needs manual wiring and conversion of various states of the product under test during the test, which increases the total time of the test, increases the workload of the test workers, and reduces production efficienc...

AI Technical Summary

Problems solved by technology

[0002] The power module often has errors during factory inspection and actual operation. Because there are many components in the circuit board of the power module and the circuit is complicated, it is difficult to find errors

In the prior art, the fault finding of the power module is manually tested: the power module is tested with a multimeter, an oscilloscope and other test tools against the places where errors may occur, and the test value is analyzed to determine whether it is within the normal range , so as to find the problematic place. This test method requires manual wiring and conversion of various states of the tested product during the test, which increases the total time of the test, increases the workload of the test workers, and reduces production efficiency.

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