A device and method for accurately testing transient voltage under pulse load

Abstract

The present invention discloses a precise transient voltage test device and method under pulse load in the field of power supply testing, comprising a program-controlled DC power supply, the program-controlled DC power supply is connected to a tested power supply with a load and provides electric energy; an electronic load, connected to a trigger signal function circuit and used to output a pulse current; a trigger signal function circuit, connected in series with the load output circuit of the tested power supply and connected to a signal acquisition device; a signal acquisition device, the pulse current generates a trigger signal through the trigger signal function circuit, triggering the signal acquisition device to collect the transient input terminal voltage and output terminal voltage of the tested power supply load side; a host computer, connected to and controlling the program-controlled DC power supply, the electronic load and the parameter state value of the signal acquisition device. The present invention can quickly and accurately detect the output voltage of the power module after eliminating the influence of thermal effects, has wide applicability, high detection efficiency, and has significant progress.

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