UCC 28019 CCM POWER FACTOR CORRECTOR

Are you qualified to be working with mains voltages?

Working with 110V or 220V is dangerous and can kill you. Do you have the skill and knowledge to work with those voltages safely? Considering the type of questions, I suspect the honest answer is NO.

---55p

 

Maybe passive PFC is easier? (Valley fill?)
Do you REALLY need that 0.99 PF?

If your gate weren't being driven, I don't see the FET burning up... no current flow, right?

Edit: But yeah, you have the FET heat sunk, right? What kind of output (in watts) is this supply? (Not the boost PFC stage, I'm asking about the supply you're PFC'ing.) Based on that FET you're using, it's probably dissipating a cool 5-20W at 5-10A, not to mention the switching losses on top of that, etc.

 

If the qualified people are unwilling to help you design and built, all their being "avaliable around me" is going to do is to make sure your dead body is promptly transferred to whoever handles death investigations in your country. That is not much help.

So your solution is to come to a website and demand:

If these "qualified" people truly think that it is a good idea to let someone with little knowledge and experience figure this out on their own, I seriously question their judgement and whether they are actually qualified.

Maybe the reason they do not want to help is because they know you and realize that this is beyond your capabilities and want no part in this. Based on what you have posted so far, I would tend to agree with that assessment. My recommendation is that this is something too dangerous for someone of your apparent experience level to be playing with.

---55p

 

The solution I am trying to produce is to make you realize that what you are attempting to do is dangerous and you may not have the experience to do it safely.

---55p