z9u2k
Member level 1
Hey all,
I've built a small dark-activated switch using a photoresistor a comparator and a relay for a 60W light bulb (at 230V, 50Hz).
In series with the bulb and relay, I've connected a 250V 2A fuse to protect the relay. Thing is - this fuse keep blowing every now and then, and I can't figure out why... Without the fuse, the bulb was never blown...
Am I missing some sort of a ripple-filter I'm not aware of maybe?
Thanks!
I've built a small dark-activated switch using a photoresistor a comparator and a relay for a 60W light bulb (at 230V, 50Hz).
In series with the bulb and relay, I've connected a 250V 2A fuse to protect the relay. Thing is - this fuse keep blowing every now and then, and I can't figure out why... Without the fuse, the bulb was never blown...
Am I missing some sort of a ripple-filter I'm not aware of maybe?
Thanks!