• Skip to main content
  • Skip to primary sidebar

Homemade Circuit Projects

Need circuit help? Post them in the comments! I've answered over 50,000!

Blog | Categories | About | Contact | Calculators-online
You are here: Home / Archives for Power Supply Circuits

Power Supply Circuits

warning message: electricity is dangerous, proceed with caution

Simple Crowbar Circuits for Over-voltage Protection

Last Updated on November 9, 2023 by Swagatam 31 Comments

SimpleDCOverLoadProtectionCircuit

A handful of simple DC over voltage protector crowbar circuits are discussed in this article. I have explained the working of each crowbar circuit through the following explanation. What is Crowbar Circuit If you are wondering what is a crowbar circuit, the definition is simple. It is a circuit network where a transistor or an […]

Filed Under: Power Supply Circuits Tagged With: Circuits, Crowbar, Over, Protection, Simple, Voltage

Regulated, High Current Power Supply Circuit

Last Updated on July 13, 2024 by Swagatam 6 Comments

RippleControlledPowerSupplyCircuitDiagramUsingTransistors

The circuit I have explained below can be used for applications that require stringent voltage regulations and ripple rejection criteria. The transistor pair are configured such that all residual ripple factor are perfectly rectified. Circuit Operation The circuit below shows a simple way of acquiring a perfectly regulated and stabilized high current DC voltage output using ordinary transistors. The circuit […]

Filed Under: Power Supply Circuits Tagged With: Current, High, Power, Regulated, Supply

4 Simple Transformerless Power Supply Circuits Explained

Last Updated on March 27, 2025 by Swagatam 438 Comments

In this post I have explained 4 easy to build, compact simple transformerless power supply circuits. All the circuits presented here are built using capacitive reactance theory for stepping down the input AC mains voltage. All the designs presented here work independently without any transformer, or no transformer. The Transformerless Power Supply Concept As the […]

Filed Under: Power Supply Circuits Tagged With: Circuits, Explained, Power, Simple, Supply, Transformerless

How to Use LM317 for Making a Variable Power Supply Circuit

Last Updated on November 10, 2024 by Swagatam 170 Comments

IC 317 Power Supply2C Simplest

In this post I will elaborately explain how to build a simple LM317 based adjustable power supply circuit using minimum number of external components. As the name suggests a variable power supply circuit provides the user with a range of linearly varying output voltages through a manually controlled potentiometer rotation. A LM317 is a versatile […]

Filed Under: Power Supply Circuits Tagged With: LM317, Making, Power, Supply, Variable

How to Calculate Transformerless Power Supply Circuits

Last Updated on March 9, 2025 by Swagatam 97 Comments

In this article I have explained how to calculate resistor and capacitor values in transformerless power supply circuits using simple formulas like ohms law. Analyzing a Capactive Power Supply Before I have explained the formula for calculating and optimizing resistor and capacitor values in a transformerless power supply, it would be important to first summarize […]

Filed Under: Power Supply Circuits Tagged With: Calculate, Circuits, Power, Supply, Transformerless

  • « Go to Previous Page
  • Page 1
  • Interim pages omitted …
  • Page 13
  • Page 14
  • Page 15

Primary Sidebar

circuit simulator image

Subscribe to get New Circuits in your Email

Categories

  • Arduino Projects (90)
  • Audio and Amplifier Projects (132)
  • Automation Projects (17)
  • Automobile Electronics (101)
  • Battery Charger Circuits (84)
  • Datasheets and Components (105)
  • Electronics Theory (140)
  • Free Energy (38)
  • Games and Sports Projects (11)
  • Grid and 3-Phase (19)
  • Health related Projects (25)
  • Home Electrical Circuits (12)
  • Indicator Circuits (15)
  • Inverter Circuits (89)
  • Lamps and Lights (142)
  • Meters and Testers (71)
  • Mini Projects (46)
  • Motor Controller (64)
  • Oscillator Circuits (28)
  • Pets and Pests (15)
  • Power Supply Circuits (89)
  • Remote Control Circuits (50)
  • Security and Alarm (64)
  • Sensors and Detectors (103)
  • SMPS and Converters (31)
  • Solar Controller Circuits (60)
  • Temperature Controllers (42)
  • Timer and Delay Relay (49)
  • Transmitter Circuits (29)
  • Voltage Control and Protection (38)
  • Water Controller (36)

Other Links

  • Privacy Policy
  • Cookie Policy
  • Disclaimer
  • Copyright
  • Videos
  • Sitemap

People also Search

555 Circuits | 741 Circuits | LM324 Circuits | LM338 Circuits | 4017 Circuits | Ultrasonic Projects | SMPS Projects | Christmas Projects | MOSFETs | Radio Circuits | Laser Circuits | PIR Projects |

Social Profiles

  • Twitter
  • YouTube
  • Instagram
  • Pinterest
  • My Facebook-Page
  • Quora
  • Stack Exchange
  • Linkedin
  • Recent Comments

    • Swagatam on Simplest AM Radio Circuit
    • Swagatam on Simple Online UPS Circuit
    • Saroj Sahu on Simple Online UPS Circuit
    • michel van simaeys on Simplest AM Radio Circuit
    • Swagatam on Simplest AM Radio Circuit

    © 2025 · Swagatam Innovations