• 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 / New Circuit Projects

New Circuit Projects

Make an LED AC Voltage Indicator Monitor Circuit

Last Updated on November 7, 2023 by Swagatam 7 Comments

mainsacvoltagemonitor

The LED AC mains voltage level indicator is a circuit that can be used for displaying and monitoring the instantaneous voltage level of any 220 V or 120 V mains home AC input, through a correspondingly rising and falling LED bar graph. A simple construction and accurate result are the main features of this tiny […]

Filed Under: Sensors and Detectors Tagged With: AC, Indicator, LED, Monitor, Voltage

How To Calculate and Connect LEDs in Series and Parallel

Last Updated on November 7, 2023 by Swagatam 63 Comments

LED series

In this article I have explained how to calculate LEDs in series and parallel using a simple formula and configure your own personalized LED displays, now you don’t just have to wonder how to wire led lights? but actually can do it, know the details here. These lights are known not only for their dazzling […]

Filed Under: Electronics Theory Tagged With: Calculate, Connect, LEDs, Parallel, Series

Simple LED Tubelight Circuit

Last Updated on December 4, 2024 by Swagatam 88 Comments

LED2Btube252C2BMOV

An LED tube-light is lighting device built using high efficiency LEDs for illuminating a premise where it is installed, through the available AC mains supply. In this post I have explained the complete construction details of a simple LED light tube light circuit using 20 mA, 5 mm high bright white LEDs. The circuit can […]

Filed Under: Lamps and Lights Tagged With: LED, Simple, Tubelight

A Homemade Fence Charger, Energizer Circuit

Last Updated on November 7, 2023 by Swagatam 156 Comments

The electric fence charger circuit presented here is basically a high voltage pulse generator. The super high voltage is derived from a commonly used automobile ignition coil. An astable multivibrator is used to generate the required frequency to drive the ignition coil. Another astable is used to control the pulses supplied to the fence. Protecting […]

Filed Under: Security and Alarm Tagged With: Charger, Energizer, Fence, Homemade

Transformerless Automatic Night Lamp Circuit

Last Updated on January 3, 2024 by Swagatam 89 Comments

This transformerless solid-state automatic night lamp operates without using bulky transformer, and automatically switches ON some LEDs during night, and switches them OFF during day. In this post I have explained how to make a transformerless automatic darkness activated LED lamp circuit, using a couple of transistors and capacitive based power supply, eliminating the use […]

Filed Under: Lamps and Lights Tagged With: Automatic, Lamp, Night, Transformerless

Simple 4 Watt LED Driver Circuit Using IC 338

Last Updated on January 3, 2024 by Swagatam 23 Comments

4 watt led driver circuit

This 4 watt LED driver is a device that will illuminate a 4 watt LED safely through a constant current circuit using the IC LM338. The IC LM338 as we know is a highly versatile device when it comes to controlling voltages and current levels. Circuit Configuration In the present design, the device is configured […]

Filed Under: Lamps and Lights Tagged With: 338, Driver, LED, Simple, Watt

  • « Go to Previous Page
  • Page 1
  • Interim pages omitted …
  • Page 274
  • Page 275
  • Page 276
  • Page 277
  • Page 278
  • Interim pages omitted …
  • Page 281
  • Go to Next Page »

Primary Sidebar

circuit simulator image

Subscribe to get New Circuits in your Email

Categories

  • Arduino Projects (89)
  • Audio and Amplifier Projects (132)
  • Automation Projects (17)
  • Automobile Electronics (101)
  • Battery Charger Circuits (83)
  • Datasheets and Components (106)
  • Electronics Theory (143)
  • Free Energy (37)
  • 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 (108)
  • Remote Control Circuits (50)
  • Security and Alarm (64)
  • Sensors and Detectors (102)
  • Solar Controller Circuits (59)
  • Temperature Controllers (42)
  • Timer and Delay Relay (49)
  • Transmitter Circuits (29)
  • Voltage Control and Protection (40)
  • 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 4 Simple Transformerless Power Supply Circuits Explained
    • Swagatam on How an Inverter Functions, How to Repair Inverters – General Tips
    • Swagatam on H-Bridge Sine Wave Inverter Circuit using Arduino
    • Swagatam on H-Bridge Sine Wave Inverter Circuit using Arduino
    • Peter on 4 Simple Transformerless Power Supply Circuits Explained

    © 2025 · Swagatam Innovations