DER 136 Problem
Posted by: magicianchiku
on
I have designed the same circuit as it is implemented in the DER136
Few of my observations
1. Getting output only +13V
2.C Pin voltage is getting constant 5.8V
I think f/b is not working..
Where to test and what to test.. No idea..
One circuit is working and another 5 modules are giving the same problem
Any hints or clues pls let me know
Comments
Hello i have designed it for the lesser amp.
DER 136 IS FOR THE 75 W
AND MINE IS ALMOST 40W.
I have used the sama schematics only transformer is changed.
It is bursting at the AC Line voltage with some load (50%)
Could you please send the PIexpert file? I can help you review your transformer design.
Hi magicianchiku,
Thank you for choosing Power Integrations.
DER-152 is an old design and is using one of the earlier versions of Topswitch. Do you require a similar 75W LED driver design? I would suggest that you make use of Power Integrations devices which are intended for lighting applications. An example of such devices is the LYTSwitch-4 which can give you up to 78W maximum output power depending on your design.
We have a design tool which allows users to design transformers as well as provide guidlines to allow the designer to choose circuit components. I am attaching the link for your reference.
https://led-driver.power.com/design-support/pi-expert/
Hope this helps.