On 9/6/25 01:26, Rob Jarratt wrote:
Thanks Jon. In my case even when the outputs are at 0V, I can see the that the output transformer is producing outputs, if that is true would that confirm that startup is not the issue here?
Well, maybe. If it is a steady ~20 KHz on the transformer, the startup circuit is OK. If it is an intermittent pulsing a few times a second, then the startup is "trying" but the converter is failing to power itself. (Or the crowbar is killing it.)
Jon
