TOP265VG 5V/1A

Posted by: sheldon on 07/01/2012

Hi,

Please find attached the schematic for TOP265VG for 5V/1A for input 41VAC to 265VAC,

the problem with this circuit is when at full load, the circuit takes atleast about 2-4seconds to startup and shutdown of the power supply is okay,

please help in this regards,

Comments

Hi,

I don't see any attachment. Is the start-up 2-4s delay at 41VAC, full load?

rgds..

yes..

this is problem is also present at 230VAC Full load

Hi,

Seems like you have lots of output capacitance 2.5mF total. I think you are going into auto-restart mode. Can you reduce your output capacitance by half and check if the problem exists. Also please look at the power-up profile of the output and send it to me if posible.

rgds