| ??? 03/29/05 19:08 Read: times |
#90627 - A bit clarification required Responding to: ???'s previous message |
Geert said:
But since you cannot exactly know in which state the teleruptor ended after powering the relais coil (the contacts can be closed, but they can also be opened), you need to 'spy' one way or another if the contacts are closed. 1) Why you want to use teleruptor type (latching relays) to control AC appliances? 2) If you must use them, why not use relay with additional pole / contacts and use it for indication purpose? How costly it would be? more than the cost of wall-wart or more than AC optocoupler and its associated circuitry or more than small isolation transformer + bridge + transistors + PCB space? Please explain a little what do you plan to do and how?. May be I am completely missing your idea but here We use nothing such stuff, just simple On/Off switches directly controlling the AC appliances. |
