protection circuit in power supply

[kawai2k]

Hi,
I am a member of power supply design team. I know that protection circuit can perform by using some housekeeping IC and opamp design. however, can anyone suggest other cicruit to do protection.
Thank in advance ^^

 

[saurav_sdpl]

What sought of protection u want to go for, current limit, over voltage for PDD,

For current limit u can simply build ur circuit around two PNP transistor.

For overvoltage detection also u can go for simple opamp with a zener voltage reference .

But decide wat protection u want to go for

 

[ipsc]

Saurav,

Can you please post the circuit for Current Limit?

Regards

 

[flatulent]

HP-AN90B power supply handbook.pdf is a very extensive manual on power supply design. www.wfp76364.w1.com/HP-AN90B.pdf is one source for it.