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Regulator

SCR Voltage Regulator Circuit

Last Updated on May 17, 2021 by Swagatam 17 Comments

SCR voltage regulator circuit compressed

In this article I have explained how to build a highly efficient voltage regulator circuit using an SCR and some other external components. This SCR voltage regulator circuit being a switching kind of regulator is more efficient than the normal 3 pin voltage regulators, or the transistor zener based series pass regulators circuits. How the […]

Filed Under: Power Supply Circuits Tagged With: Regulator, SCR, Voltage

4 Solid-State Car Alternator Regulator Circuits Explored

Last Updated on May 16, 2026 by Swagatam 89 Comments

car voltage regulator circuit

The 4 simple car voltage current regulator circuits I have explained below is created as a immediate alternative to any standard regulator and, although developed principally for a dynamo it will function equally effectively with an alternator. If the functioning of a traditional car alternator voltage regulator is analyzed, we find it amazing that these […]

Filed Under: Automobile Electronics Tagged With: Alternator, Circuits, Explored, Regulator, Solid, State

Simple Low Dropout Regulator Circuits Explained

Last Updated on May 3, 2026 by Swagatam 70 Comments

5V LDO

The transistorized low dropout voltage regulator circuit ideas explained in the following article can be used for getting stabilized output voltages right from 3 V and above, such as 5 V, 8 V, 9 V, 12 V, etc with an extremely low dropout of 0.1 V. For example, if you make the proposed 5 V […]

Filed Under: Power Supply Circuits Tagged With: Circuits, Dropout, Explained, Regulator, Simple

IC 723 Voltage Regulator – Working, Application Circuit

Last Updated on January 14, 2025 by Swagatam 35 Comments

IC723 block diagram

In this post I have explained the main electrical features, pinout specifications, datasheet, and application circuit of the IC 723. The IC 723 is a general purpose, extremely versatile voltage regulator IC, which can be used for making various types of regulated power supplies such as: Main Features ABSOLUTE MAXIMUM RATINGS Pinout Functions Pin 1 […]

Filed Under: Power Supply Circuits Tagged With: 723, Application, Regulator, Voltage, Working

Voltage Regulator Circuits and Projects

Last Updated on January 2, 2024 by Swagatam 30 Comments

zener stabilzed power supply

In this article I will comprehensively discuss how to make customized transistorized voltage regulator circuits in fixed modes and also variable modes. All linear power supply circuits which are designed to produce a stabilized, constant voltage and current output fundamentally incorporate transistor and zener diode stages for getting the required regulated outputs. These circuit projects […]

Filed Under: Power Supply Circuits Tagged With: Circuits, Projects, Regulator, Voltage

Low Dropout (LDO) Voltage Regulator IC KA378R12C – Pinout and Working Specs

Last Updated on June 29, 2019 by Swagatam 10 Comments

1

In this article I have explained the pinout functions, and datasheet of a versatile low dropout (LDO) voltage regulator IC KA378R12, and also presents a circuit diagram showing how to use the IC in practical applications. A related question was asked by Mr. Jon, which inspired me to update this post. The question can be […]

Filed Under: Power Supply Circuits Tagged With: Dropout, KA378R12C, LDO, Pinout, Regulator, Voltage

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