| ??? 03/24/07 22:16 Read: times |
#135817 - Is it back EMF or short circuit Responding to: ???'s previous message |
it is difficult to protect semiconductors from direct shorts If indeed it is a short, then you can try a PTC resistor in series with the current. If you are interested let me know and I will try to find a reference or type for you on Tuesday. There is another possible alternative- a Polyswitch. I see that they now have ones that will operate at 240V (LVR series). See http://circuitprotection.com/polyswitch.asp -Aubrey |
| Topic | Author | Date |
| Protecting a Triac | 01/01/70 00:00 | |
| Bigger triac | 01/01/70 00:00 | |
| Snubber, mains filter, varistor? | 01/01/70 00:00 | |
| Assymetry | 01/01/70 00:00 | |
| Snubber ? | 01/01/70 00:00 | |
| RE: Snubber | 01/01/70 00:00 | |
| Protecting a triac | 01/01/70 00:00 | |
| switch at zero crossing? | 01/01/70 00:00 | |
| Zero crossing | 01/01/70 00:00 | |
| Is it back EMF or short circuit | 01/01/70 00:00 | |
| Polyswitches | 01/01/70 00:00 | |
| Thermal properties aside | 01/01/70 00:00 | |
| Why bother ? | 01/01/70 00:00 | |
| I vote for overrating too | 01/01/70 00:00 | |
| Thanks | 01/01/70 00:00 | |
Not "over" just proper | 01/01/70 00:00 |