This Power On Indicator circuit is highly useful to detect the presence of AC in Mains powered instruments such as Lab equipments and battery chargers which are to be switched on continuously. This ...

This power indicator circuit is intended to be used as an extension for the water softener. It might be easier to just place a LED but it is better to make a rectifier that detects the presence of the ...

Standby power refers to the electric power consumed by electronic appliances while they are switched off or in a standby mode – but still connected and still drawing power. Fundamentally, standby ...