• Skip to primary navigation
  • Skip to main content
  • Skip to primary sidebar

Homemade Circuit Projects

Get free circuit help 24/7

  • 1000+ Circuits
  • Privacy Policy
  • About Us
  • Contact
  • Disclaimer
  • Videos – Circuit Test Results
You are here: Home / Archives for Power Supply Circuits

DC Crowbar Over-voltage Protector Circuit

Last Updated on August 6, 2020 by Swagatam 10 Comments

A very simple DC over voltage protector circuit is shown below. The transistor is set to monitor the input voltage applied to it from the left, in case the voltage rises above […]

Filed Under: Power Supply Circuits

Regulated, High Current Power Supply Circuit

Last Updated on March 20, 2019 by Swagatam Leave a Comment

The circuit given here 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. […]



Filed Under: Power Supply Circuits

3 Tested 220V High and Low Voltage Cut OFF Circuits Using IC 324 and Transistors

Last Updated on April 15, 2020 by Swagatam 130 Comments

An AC mains high/low cut-off device will cut off or disconnect the mains supply from home electrical whenever a high voltage or low voltage situation is detected. In this way […]

Filed Under: 324 IC Circuits, Power Supply Circuits, Sensors and Detectors

4 Simple Transformerless Power Supply Circuits Explained

Last Updated on September 14, 2020 by Swagatam 222 Comments

105/400V capacitor 1uF 400V capacitor for transformerless power supply

In this post we discuss 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 […]

Filed Under: Transformerless Power Supply

How to Use LM317 for Making a Variable Power Supply Circuit

Last Updated on June 19, 2020 by Swagatam 107 Comments

In this post we will elaborately discuss how to build a simple LM317 based adjustable power supply circuit using minimum number of external components. As the name suggests a variable […]

Filed Under: LM317/LM338, Power Supply Circuits

How to Calculate Transformerless Power Supplies

Last Updated on December 18, 2020 by Swagatam 67 Comments

This post explains how to calculate resistor and capacitor values in transformerless power supply circuits using simple formulas like ohms law. Analyzing a Capactive Power Supply Before we learn the […]

Filed Under: Power Supply Circuits, Transformerless Power Supply



  • « Go to Previous Page
  • Go to page 1
  • Interim pages omitted …
  • Go to page 9
  • Go to page 10
  • Go to page 11

Primary Sidebar

Electronic Projects Categories

  • 3-Phase Power (15)
  • 324 IC Circuits (19)
  • 4017 IC Circuits (51)
  • 4060 IC Circuits (25)
  • 555 IC Circuits (92)
  • 741 IC Circuits (18)
  • Amplifiers (48)
  • Arduino Engineering Projects (82)
  • Audio Projects (83)
  • Battery Chargers (75)
  • Car and Motorcycle (87)
  • Datasheets (44)
  • Decorative Lighting (Diwali, Christmas) (31)
  • DIY LED Projects (81)
  • Electronic Components (96)
  • Electronic Devices and Circuit Theory (34)
  • Electronics Tutorial (99)
  • Fish Aquarium (5)
  • Free Energy (34)
  • Games (2)
  • GSM Projects (9)
  • Health Related (16)
  • Heater Controllers (23)
  • Home Electrical Circuits (98)
  • Incubator Related (6)
  • Industrial Electronics (25)
  • Infrared (IR) (39)
  • Inverter Circuits (93)
  • Laser Projects (10)
  • LM317/LM338 (21)
  • LM3915 IC (24)
  • Meters and Testers (52)
  • Mini Projects (152)
  • Motor Controller (64)
  • MPPT (7)
  • Oscillator Circuits (12)
  • PIR (Passive Infrared) (8)
  • Power Electronics (32)
  • Power Supply Circuits (64)
  • Radio Circuits (9)
  • Remote Control (46)
  • Security and Alarm (54)
  • Sensors and Detectors (114)
  • SG3525 IC (4)
  • Simple Circuits (72)
  • SMPS (30)
  • Solar Controllers (60)
  • Timer and Delay Relay (51)
  • TL494 IC (5)
  • Transformerless Power Supply (8)
  • Transmitter Circuits (36)
  • Ultrasonic Projects (12)
  • Water Level Controller (45)

Follow Homemade Circuits

Facebook
Twitter
YouTube
Instagram
My Facebook-Page
Quora

Feeds

Post RSS
Comment RSS

Circuit Calculators

  • AWG to Millimeter Converter
  • Battery Back up Time Calculator
  • Capacitance Reactance Calculator
  • IC 555 Astable Calculator
  • IC 555 Monostable Calculator
  • Inductance Calculator
  • LC Resonance Calculator
  • LM317, LM338, LM396 Calculator
  • Ohm’s Law Calculator
  • Phase Angle Phase Shift Calculator
  • Power Factor (PF) Calculator
  • Reactance Calculator
  • Small Signal Transistor(BJT) and Diode Quick Datasheet
  • Transistor Astable Calculator
  • Transistor base Resistor Calculator
  • Voltage Divider Calculator
  • Wire Current Calculator
  • Zener Diode Calculator

© 2021 · Swagatam Innovations

We use cookies to ensure that we give you the best experience on our website. If you continue to use this site we will assume that you are happy with it.Ok