The circuit presented here monitors the level of the water rising inside a tank and automatically switches OFF the pump motor as soon as the water level reaches the brim of the tank. The proposed tank water overflow controller circuit is a semi automatic device because it can only sense an overfill and switch OFF […]
Newly Updated Circuit Projects:
Single Phase Jet Pump Controller Circuit
In this post I have explained a simple single phase jet water pump controller circuit using magnetic reed switch level sensor, and a set/reset circuit. The idea was requested by Mr. Nanigopal mahata Technical Specifications I am your blog follower,, i searched all the blogs for automatic submersible pump controller but i can’t understand which […]
Two Pipe Water Pump Valve Controller Circuit
In this article I have explained how to control a two pipe submersible pump valve to ensure that the pipe bringing in the municipal water is always given the main preference to the bore-well water source. The circuit is also equipped with a tank overflow cut-off feature. The idea was requested by Mr. Prashant. Circuit […]
Transformerless UPS Circuit for Computers (CPU)
In this post I have explained how to build a simple UPS circuit for backing up computers or PCs during sudden power failures or brownouts. Introduction Normally when we talk about uninterruptible power supplies (UPS) we imagine large inverter units with complex features, where it imperatively needs to be a pure sine wave type. Such […]
Making a Regulated 9V Battery Eliminator Circuit
The post presents a regulated 9V battery eliminator circuit which was built and investigated by Mr. Steven Chiverton, an avid reader of this blog and an experienced electronic hobbyist. I have explained more from him. 9 volt battery eliminator circuit tests: Circuits built 2x each circuit ive made a small modification to it buy adding […]
Using Microwave Oven Parts to build a Soldering Iron Heat Controller
In this post I have explained how to scavenge discarded microwave oven parts for making a useful soldering iron heat controller circuit which can then be used for maintaining controlled heat over a connected soldering iron tip ensuring safe soldering operations, that may be quite crucial and handy if you are working with SMD parts. […]





