| ??? 08/29/08 07:29 Read: times |
#157840 - AC vs DC Responding to: ???'s previous message |
I use 15V AC power supply. There is polyswitch 0,3A/60V before the rectifier bridge on the device, so it is adequate, I think. When I shorted the output pins of the bridge to simulate the fault, the polyswitch didn't react and the fuse in the power supply was interrupted. When I used 12V DC and I shorted the pins, the polyswitch disconnect the circuit and everything was OK. I tried it many times and the power supply fuse was still OK.
So I don't understand that. I am not sure if the polyswitch behaves similarly in the AC/DC circuits... |
| Topic | Author | Date |
| Polyswitch... | 01/01/70 00:00 | |
| First, what do you intend to protect? | 01/01/70 00:00 | |
| preemptive... | 01/01/70 00:00 | |
| AC vs DC | 01/01/70 00:00 | |
| Polyswitches vs fuses | 01/01/70 00:00 | |
| re polyswitches a 'trick' | 01/01/70 00:00 | |
| yes, but.... | 01/01/70 00:00 | |
| the \'thing\' will recover | 01/01/70 00:00 | |
| Again, what do you want to protect??? | 01/01/70 00:00 | |
| RFID device protection | 01/01/70 00:00 | |
Your transformer is much too weak... | 01/01/70 00:00 |