| ??? 03/25/07 14:42 Read: times |
#135834 - Thermal properties aside Responding to: ???'s previous message |
I don't think Jon has specified the voltage he is operating at, but it is relatively low wattage. Even if we ignore the thermal capabilties, a fixed resistor can limit the current long enough for the fuse to blow, while not stressing the Triac to the point of destruction. There may be a value of the resistor where the circuit can tolerate the continuous volt drop across the resistor (and of course the resistor can tolerate the power dissipated and the standoff voltage).
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| 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 |