Hi MPS,
I have some test questions and need help from MPS. I was remove LP3 and the output 12V increases the load (with electronic load). It is found that the output voltage will be 0V when the load increases to >1.7A.
The picture below is my circuit diagram, please help to confirm where must be modified.
Thanks,
Richard Guo
Hi Richard,
To understand what could be happening, you can monitor the input, output, switch voltage, and load current on a scope.
Removing LP3, there may be insufficient output caps.
If you need further assistance, please submit a ticket to MPS NOW Remote Support - Support.
Best Regards,
Yu
Hi Richard, I am working on a similar device and looking for more information on suitable transformers. I didn’t get any reply or more details from monolithic power team. Who made the UP5 transformer for you? Could you please share with me the datasheet? Thank you very much, Viktor
