The device works for 30 minutes, then shuts off. After cooling down for 10 minutes, it works again. Root Cause: Overheating of the HSPS V606 TOP circuit. This is often due to dried-out thermal paste under the heatsink or a failing 22µF 50V capacitor in the primary control circuit. Fix: Replace all small electrolytic capacitors in the primary section (specifically the one feeding Vcc to the TOPswitch).
Function: This IC handles the switching frequency, regulates output voltage via optocoupler feedback, and includes built-in protection features like over-voltage, over-current, and thermal shutdown. hsps v606 top