[Solved] SG3525 Closed Loop Inverter Waveform Problem

Das D. Asks: SG3525 Closed Loop Inverter Waveform Problem
I’m using a sg3525 ic on a full bridge dc-dc converter in closed loop. The system is working fine, I don’t have a problem with it. Output is just like what I want.

The problem is inverter part’s output waveform is confusing my mind. When I use ic on open loop, the inverter has a normal output waveform(square wave), but when I switched to closed loop system is working fine but inverter output becomes weird.

I just want to ask that: Is this inverter output waveform normal at closed loop configuration? Because system is woking fine at closed loop but this waveform is confusing my mind because efficiency problems can occour.

Here is the waveforms:

Open Loop Inverter Waveform:(non-problem, normal
enter image description here
)

Closed Loop Inverter Waveform:
enter image description here

Thanks for your help…

(It’s a 48V to 360V full bridge dc-dc converter with 30kHz operating frequency at inverter part.)

Ten-tools.com may not be responsible for the answers or solutions given to any question asked by the users. All Answers or responses are user generated answers and we do not have proof of its validity or correctness. Please vote for the answer that helped you in order to help others find out which is the most helpful answer. Questions labeled as solved may be solved or may not be solved depending on the type of question and the date posted for some posts may be scheduled to be deleted periodically. Do not hesitate to share your response here to help other visitors like you. Thank you, Ten-tools.