Hi guys

I tried to simulate a zvs driver circuit, but I don't get anything out, how can I make it work?

Vcc = 24V

 

Isn't U3 upside down?

Edit:
Skip the initial operating point solution.
Set the sim time for 10ms or so, you get a more interesting result .

 

All my LTSpice sims use a voltage source connected across Vcc and Ground. Perhaps you're using a feature I'm not familiar with?

w

 

You need to post the complete circuit including the driver and the voltage sources.

You circuit has no connection between the driver source and the MOSFET inputs.

The MOSFET gates need to be driven by the out of phase signals from transformer K1 (not shown).

K1 must be driven from a bipolar signal (or the input capacitively coupled) to avoid core saturation.

 

Isn't U3 upside down?

Edit:
Skip the initial operating point solution.
Set the sim time for 10ms or so, you get a more interesting result .

Thanks, this fixed my simulation.

 

The MOSFET gates need to be driven by the out of phase signals from transformer K1 (not shown).

K1 must be driven from a bipolar signal (or the input capacitively coupled) to avoid core saturation.

My K1 is for another simulation, I just have a bad habit of have two different simulation on the same file.

But thanks for pointing that out, I will try that.