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The half-bridge circuit analyzes the current.

Hardware design
December 03, 2020 by Garret 897

This is the current circuit, and the current waveform of the upper tube I measured is shown in the figure below:

1 is the upper tube current, 4 is the upper tube drive, 2 is the lower tube current,

Channels 2, 3 are the switching tube DS voltages respectively


Now that the voltage cannot be increased, the tube can't stand it when it is about 400V, and the current waveform is a bit different from the simulation. What could be the reason?

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Denis Posted on December 3, 2020

Is there a short circuit in the transformer?

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  • Garret

    Garret Posted on December 3, 2020

    What does a transformer short circuit mean? Didn't the original vice side achieve isolation?

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Magnus Posted on December 3, 2020

It feels like a short circuit between turns.

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Candace Posted on December 3, 2020

Whether the transformer has magnetic flux saturation.

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