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Power Supply Circuits

Designing a High Current, Low Voltage Regulator Circuit with the MIC29302WT

Last updated on 1 August 2025 by Admin-Lavi Leave a Comment

Modern electronics need good power control especially for high current and low voltage use. MIC29302WT is strong LDO regulator and it gives high current with small voltage drop. It is good for battery devices, car electronics and microcontroller power. It gives up to 3A current, so it can handle heavy circuits. Output voltage is from […]

Filed Under: Power Supply Circuits

3 Ways to Build a 12V to 5V Converter Circuit using IC LM7805

Last updated on 24 January 2026 by Admin-Lavi Leave a Comment

Stable 5V power needed for many electronics like sensors, microcontrollers and digital parts. LM7805 voltage regulator IC is used in 12V to 5V converter which is very useful. This circuit takes 230V AC and gives 5V DC and keeps device working good and stable. Main parts of the circuit are transformer, bridge rectifier, filter capacitors, […]

Filed Under: Power Supply Circuits

Simple Transistor-Based Voltage Booster Circuit

Last updated on 31 July 2025 by Admin-Lavi Leave a Comment

In many electronics low voltage is not enough but need only higher voltage. Voltage booster circuit helps, take low voltage and makes it higher. This project for Simple Transistor-Based Voltage Booster Circuit show how to make voltage booster using simple parts like: PNP transistor 2N2907, NPN transistor 2N2222, resistors, capacitor, diode, inductor. It takes 3V […]

Filed Under: Power Supply Circuits, Transistor Circuits

DIY Variable Power Supply Circuit using Arduino

Last updated on 29 July 2025 by Admin-Lavi 1 Comment

This DIY Variable Power Supply Circuit using Arduino makes changeable power. It uses transistor and resistors to change 9V output from IC 7809 regulator. One 100uF capacitor help clean the output voltage. Two pushbuttons can change the voltage by hand. LCD screen show real output voltage. Coding: Code Explanation: Circuit Working: Parts List: Component Quantity […]

Filed Under: Arduino Projects, Power Supply Circuits

Simple Battery Eliminator Circuits using 3 Methods

Last updated on 10 June 2026 by Admin-Lavi Leave a Comment

To begin with, this article shows how to make Simple Battery Eliminator Circuits using 3 Methods with many useful features. When we need steady DC power for devices then battery eliminator is very useful, as there is no need of normal batteries. Furthermore, these circuits change AC from transformer to DC power for electronics; also […]

Filed Under: Hobby Circuits, Mini Projects, Power Supply Circuits

Battery Charger Circuit using SCR

Last updated on 10 June 2026 by Admin-Lavi Leave a Comment

Battery charger is important in electric system as it give back power to rechargeable battery; also circuit is good way in using SCR (Silicon Controlled Rectifier). SCR is strong, reliable and control well and it have four layers, three junctions and work like switch and rectifier. Furthermore, small current go to gate turns it ON […]

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

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