In this post I have explained a simple 220 V to 220V DC online UPS inverter circuit. The idea was requested by Mr. Taiye. Technical Specifications I intend to build […]
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PWM Air Blower Controller Circuit for Biomass Cook Stoves
The article details a PWM speed controller circuit for a fan air blower system to be used in Biomass cook stoves. The circuit also includes an uninterrupted automatic battery back-up […]
How to Convert an Inverter to an UPS
An inverter is an equipment which will convert a battery voltage or any DC (normally a high current) into a higher mains equivalent voltage (120V, or 220V), however unlike an […]
2 Simple Automatic Transfer Switch (ATS) Circuits
In this article we investigate an ATS circuit for initiating an automatic changeover from mains supply to generator supply through many intermediate transfer stages which involves activating the fuel valve, […]
How to Recharge Dead Batteries
In this post I have explained how to recharge and use bad, defective discarded batteries using an innovative battery charging process invented by John Bedini. Lead acid batteries can sometimes […]
12V 5 Amp Fixed Voltage Regulator IC 78H12A Datasheet
The post explains the technical specifications, datasheet, and application notes of the IC 78H12A which is a voltage regulator IC capable of providing a fixed regulated 12V output at maximum 5 amp […]