- #1
tim9000
- 867
- 17
I was going to make a modem uninteruptable power supply, and I was thinking (possibly over complicated) that I could have a relay with the solenoid that has a potential over the battery bank and the power supply, so there would be near zero volts potential when the power supply was on (and charge the batteries to the level of the supply ~12v), then when the power supply failed a potential of 12v or so would be over the solenoid and cause it to trip.
I was wondering if there was a component that:
When the input is a voltage, then the output is a open circuit, and when the input is open circuit, the output is a Short. Would there be like an Opto-coupler that goes open circuit when the diode is on?
Or if there is a solid sate component that could do this all integrated, that I haven't thought of...
I was wondering if there was a component that:
When the input is a voltage, then the output is a open circuit, and when the input is open circuit, the output is a Short. Would there be like an Opto-coupler that goes open circuit when the diode is on?
Or if there is a solid sate component that could do this all integrated, that I haven't thought of...
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