I attached the circuit in question. My main concern here is about the voltage regulator U1. I build a prototype using 7809 as a substitute for 7815 and 6V relays for S2 and S3.
The problem here is whenever I connect the voltage regulator with a 24V adapter, something always goes wrong. But when I connect them to a regulated power supply, there is rarely a problem arise. I had capacitor blown up, 7809 blown up, and smoked capacitors. Does anyone know how to find the optimal value for C1 and C2? Or do I need to use a different configuration for the voltage regulator?
The problem here is whenever I connect the voltage regulator with a 24V adapter, something always goes wrong. But when I connect them to a regulated power supply, there is rarely a problem arise. I had capacitor blown up, 7809 blown up, and smoked capacitors. Does anyone know how to find the optimal value for C1 and C2? Or do I need to use a different configuration for the voltage regulator?
Attachments
-
36.6 KB Views: 53