This is the proper way to do it. Instead of a charge pump, the micro can monitor the square wave generated by the Pi and drop the power some short time after it stops.So, a small low power micro, once every 3 days, turns on the power to the RasPi, say for 20 seconds, or enough time for the RasPi to boot and generate a square wave signal that drives a charge pump to hold the power on.
|Thread starter||Similar threads||Forum||Replies||Date|
|G||How to add a short circuit protection in a power supply by the use of relay||Power Electronics||2|
|D||USB Power Supply Switch via Relay||Power Electronics||8|
|D||Latching Relay that changes state when power is cycled.||Power Electronics||18|
|M||Need help with Latching Relay using float sensors to power pump.||Sensor Design & Implementation||4|
|power windows relay||Power Electronics||14|