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Power Supply Circuits

100V Regulated Power Supply Circuit Diagram with Over Current and Short Circuit Protection

Last Updated on January 17, 2025 by Swagatam 5 Comments

adjustable regulated power supply circuit with current limit and short circuit protection

A trustworthy and adaptable power source is essential in the world of electronic circuits. The design we present here not only offers a regulated output voltage range of 50V to 100V but also integrates safeguards to prevent potential mishaps. Let’s examine the specifics of this power supply circuit, discovering its special characteristics and how it […]

Filed Under: Power Supply Circuits

Constant Current Generator Circuits Explained

Last Updated on November 17, 2023 by Swagatam 17 Comments

1

Constant current generators (CCGs), as the name suggests, are circuits designed to produce a steady load current regardless of significant fluctuations in load resistance or voltage levels. Basic Constant Current Generator Circuit Illustrated in Figure 1 is a basic example of such a circuit. In this configuration, Q1 operates in the common emitter mode. A […]

Filed Under: Electronics Theory, Power Supply Circuits

How to Modify a Transformer

Last Updated on January 23, 2024 by Swagatam 16 Comments

Commonly, the perfect transformer might not be readily accessible for purchase, or if it is available, it can be costly. Nonetheless, there is a possibility of modifying the transformer’s secondary winding, especially when producing small voltage and current outputs. This approach can provide a highly cost-effective solution for creating a customized power supply. Transformer Power […]

Filed Under: Power Supply Circuits

How to Connect LM338 IC in Parallel to Increase Output Current

Last Updated on July 26, 2023 by Swagatam 20 Comments

how to connect LM338 in parallel for increased current output

The LM338 is an adjustable 3-terminal positive voltage regulator capable of providing up to 5 amperes of output current. To increase the output current capability, you can connect multiple LM338 ICs in parallel. When you connect them in parallel, each IC will share the load current, allowing you to achieve higher total current handling capacity. […]

Filed Under: Power Supply Circuits

12 Amp Power Supply Circuit using Parallel LM317 ICs

Last Updated on January 18, 2025 by Swagatam 4 Comments

LM317 parallel 12 amp power supply circuit

This adjustable power supply is capable of delivering a maximum output of 12 A with an adjustable voltage from 4 V to 20 V through many LM317 ICs connected in parallel. It will allow testing of any device requiring a significant power supply, such as a direct current motor, a car amplifier, or even a […]

Filed Under: Power Supply Circuits

Mains 220 V AC Line Filter Circuit for Transient Suppression

Last Updated on August 30, 2023 by Swagatam 13 Comments

220 V mains AC filter circuit

The 220 V mains AC line filter circuit described here has two functions: it prevents high-frequency waves from being sent back into the power network and it protects connected equipment from power line disturbances and surges. This circuit employs a number of components, such as capacitors, resistors, inductors, and a varistor, which are deliberately positioned […]

Filed Under: Power Supply Circuits

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