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Power Supply Circuits

NiMH Battery Charger Circuit

Last updated on 29 May 2026 by Admin-Lavi Leave a Comment

This NiMH Battery Charger Circuit is like special water can for NiMH batteries which are the same batteries inside camera, toy and other devices. Normal charger maybe not be so good for these batteries but this NiMH charger circuit give just right power and make battery work good and last long time. Circuit Working: Parts […]

Filed Under: Battery Charger Circuits, DIY Projects, Power Supply Circuits

Simple Adjustable Zener Diode Circuit

Last updated on 28 May 2026 by Admin-Lavi Leave a Comment

Think like small switch which controls how much voltage go through. A normal Zener diode works like a fixed switch that allows electricity to pass only when the voltage rises above a certain level, but this Simple Adjustable Zener Diode Circuit works more like a flexible dimmer switch. We can also change voltage level using […]

Filed Under: DIY Projects, Hobby Circuits, Mini Projects, Power Supply Circuits, Voltage Regulator

Simple 5V Switch Mode Power Supply Circuit using IC LM2674

Last updated on 28 May 2026 by Admin-Lavi Leave a Comment

This Simple 5V Switch Mode Power Supply Circuit using IC LM2674 work like charger for electronics but better; as it take strong electricity which is more than 5 volt and make it just 5 volt. A 5V supply provides perfect power for small electronic devices and project boards, also this circuit uses a special chip […]

Filed Under: Mini Projects, Power Supply Circuits

Simple Power Strip Surge Protector Circuit

Last updated on 28 May 2026 by Admin-Lavi Leave a Comment

Simple Power Strip Surge Protector Circuit is like hero for our plugs, they help protect our devices from big shock of electricity called power surge or spike. Also, this surge can come when storm happen or when other machine turn ON or OFF. Inside power strip a special part called MOV take this extra electricity […]

Filed Under: DIY Projects, Hobby Circuits, Mini Projects, Power Supply Circuits, Security and Protection

Simple 2 LED Battery Status Indicator Circuit

Last updated on 27 May 2026 by Admin-Lavi Leave a Comment

This Simple 2 LED Battery Status Indicator Circuit work like gas meter but for battery, as it uses LED lights to tell how much power battery still have. One light mean battery is full another light mean half power and last light mean time to charge. Also, it use small parts like resistors, Zener diodes […]

Filed Under: Battery Charger Circuits, Indicator Circuits, LED and Lamps, Mini Projects, Power Supply Circuits, Security and Protection

Fast Charger Circuit with Auto Cut Off

Last updated on 27 May 2026 by Admin-Lavi Leave a Comment

To begin with, this Fast Charger Circuit with Auto Cut Off is fast charger for battery like car battery or backup battery; also it charges battery very quick but there is no need worry it wont overcharge. Furthermore, inside circuit there are safety part when the battery is full it stops charging by itself, this […]

Filed Under: Automobile Circuits, Battery Charger Circuits, DIY Projects, Power Supply Circuits

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