| ??? 01/26/06 14:17 Read: times |
#108363 - Triac current and voltage Responding to: ???'s previous message |
With a resistive load current is phase with voltage
With an inductive load (like a motor) current is out of phase with voltage. So for a resistive load you can sense the voltage=0 = current and the triac turns off. For an inductive load you have to build a circuit to sense current =0 becuase voltage will not be 0. App note from Philips here http://www.8052.com/forum/read.phtml?id=72748 |
| Topic | Author | Date |
| MOC3021 | 01/01/70 00:00 | |
| Triacs only turn off at zero | 01/01/70 00:00 | |
| Motor, bulb | 01/01/70 00:00 | |
| More.... | 01/01/70 00:00 | |
| dI/dt | 01/01/70 00:00 | |
... or was it dV/dt ? | 01/01/70 00:00 | |
| Triac | 01/01/70 00:00 | |
| Domestic light dimmers use triacs | 01/01/70 00:00 | |
| Clarification required! | 01/01/70 00:00 | |
| Triac current and voltage | 01/01/70 00:00 | |
| the link linked to is dead | 01/01/70 00:00 | |
| Triac magic | 01/01/70 00:00 | |
| T shirt | 01/01/70 00:00 | |
| Well. | 01/01/70 00:00 | |
| Inductive loads | 01/01/70 00:00 |