Hello,I have collected PFC and LLC circuit of STDES-3KWTLCP reference design. I followed the method as described in the document to amass entirety circuit. When we gave AC voltage to PFC, resistance R154 gets warm up and in the long ...Read more
Hello,
I have collected PFC and LLC circuit of STDES-3KWTLCP reference design. I followed the method as described in the document to amass entirety circuit. When we gave AC voltage to PFC, resistance R154 gets warm up and in the long run burn out. I double checked all the components value and their placement but couldn’t discover the cause for this behavior.
Can anybody if it’s not too much trouble help us in finding which part of the circuit or component is making this issue so that it would offer assistance us in correcting the cause?
Thank You
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Hello, Well, if R154 gets as well hot, there will clearly be as well much current streaming through it. If you don't mind check C161 and its cover. At that point moreover check the signals on PWM1, PWM2 and OUT1, OUT2 on U105. Regards
Hello,
Well, if R154 gets as well hot, there will clearly be as well much current streaming through it. If you don’t mind check C161 and its cover. At that point moreover check the signals on PWM1, PWM2 and OUT1, OUT2 on U105.
Regards
See less