In this post we learn about a simple battery current sensor with indicator circuit which detects the amount of current consumed by the battery while charging. The presented designs also […]
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LPG Gas Leakage Detector Alarm Circuit
Are you feeling vulnerable or suspecting a possible LPG gas leakage in your house? Then may be this gas leakage alarm circuit might help you. Written by: Sai Srinivas The […]
How to Build a 220V DC Inverter UPS Circuit
The post discuses a simple 220 V to 220V DC online UPS inverter circuit. The idea was requested by Mr. Taiye. Technical Specifications I intend to build a 1000 watt […]
Battery Charging Fault Indicator Circuit
The article explains a battery status indicator circuit which can be also used as a battery charging fault indicator circuit. The idea was requested by Mr. Faizan. The Design The […]
IC 555 Based Simple Digital Stopwatch Circuit
In this article we’ll study a digital stopwatch design configured around the very popular IC LM555 in conjunction with a 4-digit counter IC with multiplexed 7-segment output drivers (MM74C926). Written […]
How to Make a 3 Phase VFD Circuit
The presented 3 phase VFD circuit (designed by me) can be used for controlling the speed of any three phase brushed AC motor or even a brushless AC motor. The […]