In this post I have explained how a shunt regulator IC works typically in SMPS circuits. We take the example of the popular TL431 device and try to understand its […]
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3 Simple Solar Panel/Mains Changeover Circuits
The discussed automatic change over relay circuit was requested by Mr.Karimulla Baig. The circuit normally charges the connected battery at constant current through the power received from the solar panel, […]
Simple PIR LED Lamp Circuit
The following PIR LED lamp circuit was designed by me for one of the followers of this blog Mr.Deepak upon his request. The circuit is a LED driver which responds to ambient […]
Mains AC Overload protection Circuit for Voltage Stabilizers
In this article I have explained how to make a cheap yet effective mains operated AC overload and over-current protector circuit using very ordinary discrete components. Introduction I have published […]
1A Step-Down Voltage Regulator Circuit – Switched Mode 78XX Alternative
You will be amazed with the features offered by this outstanding voltage regulator IC. As the name refers to, the output from this series of ICs is not only regulated […]
Transformerless Current-Controlled LED Bulb Circuits you can Build at Home
In this post I have elaborately explained how to build simple transformerless LED bulb circuits using many LEDs in series and powering them through current controlled capacitive power supply circuit. […]
