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Power Supply Circuits

Over Current Cut-off Power Supply Using Arduino

Last Updated on December 5, 2024 by Swagatam 42 Comments

pwr

In this post I will show how to construct a battery eliminator / DC variable power supply which will automatically cut-off the supply, if the current flow through the load exceeds the preset threshold level. By Girish Radhakrishanan Main Technical Features The proposed over current cut-off power supply circuit using Arduino has 16 X 2 LCD […]

Filed Under: Arduino Projects, Power Supply Circuits Tagged With: Arduino, Current, Over, Power, Supply

110V, 14V, 5V SMPS Circuit – Detailed Diagrams with Illustrations

Last Updated on January 18, 2025 by Swagatam 29 Comments

smps

In this post I have explained how to apply the IC L6565 for making a compact multi purpose 110V, 14V, 5V SMPS circuit using minimum number of external components. Implementing quasi-resonant ZVS flyback The IC L6565 from ST Microelectronics is designed as a current-mode primary controller chip, to specifically suit quasi-resonant ZVS flyback converter applications. The […]

Filed Under: Power Supply Circuits Tagged With: 110V, 14V, Detailed, Diagrams, Illustrations, SMPS

2 Compact 12V 2 Amp SMPS Circuit for LED Driver

Last Updated on January 19, 2025 by Swagatam 49 Comments

smps

In this post I will comprehensively discuss a 2  simple 12V 2 amp SMPS circuit using the IC UC2842. We study a 2 amp flyback design by evaluating various formulas, which provides the exact selection details for the transformer winding and the parts specifications. Design#1: Introduction The first design is based on the versatile IC VIPer53-E. […]

Filed Under: Power Supply Circuits Tagged With: 12V, Compact, Driver, LED, SMPS

0-40V Adjustable Power Supply Circuit Diagram

Last Updated on January 17, 2025 by Swagatam 33 Comments

IMG

This multipurpose general purpose supply generates as much as 2.5 amps from zero to 20 volts or up to 1.25 amps from 0-40 volts. Current limiting is variable within the entire range for either output options. By Trupti Patil Power Supply Main Specifications: AN IDEAL POWER SUPPLY must provide a voltage that is variable within […]

Filed Under: Power Supply Circuits Tagged With: 40V, Adjustable, Power, Supply

3 Solid-State Single IC 220V Adjustable Power Supply Circuits

Last Updated on November 17, 2023 by Swagatam 14 Comments

boardlayout

These AC to DC power supplies use a single chip to convert mains 220 V or 120 V input AC into 12 V or 5 V DC without depending on a transformer. Three simple yet efficient 220V single chip based solid state transformerless adjustable solid-state power supply circuits are discussed here. The first one works […]

Filed Under: Power Supply Circuits Tagged With: 220V, Adjustable, Power, Single, Solid, State

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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