The two capacitors, C1 and C10 are exploding... dont know why....
replaced them 4 times. applying same ratings and since these capacitors are polar so, carefully soldering (means + with + and - with -). But couldn't get out of problem. also 10 Ohm resistance also gets damage at same time of exploding. Input are 240volts. and C1 and C10 are of 400v.

Help...

 

Shorted diode(s) in the bridge letting AC get to the caps.

 

What *peak* voltage will that create?

Check the TOS here. Direct to line projects are not allowed.

 

? Transformerless power supplies are not allowed.

Normally people building these SMPS circuits are experienced, it is not beginners stuff. Often as much as to know where to search for problems.

And I think too it's a bad bridge.

 

It is a primary switched power supply. As I know this is still inside the cope of the forum, and the TOS. As we allow questions about light dimmers and linear power supplies build from start in this forum.

 

Hello,

I am closing this thread as it violates AAC policy and/or safety issues.

Quote:
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The following topics are regularly raised however are considered “off-topic” at all times and will results in Your thread being closed without question:

• Any kind of over-unity devices and systems
• Automotive modifications
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• LEDs to mains
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• Rail guns and high-energy projectile devices
• Transformer-less power supplies

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