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Electronic Circuits

A collection of electronic circuits and projects you can build. Created by our very own members.

Top Articles

  1. Refrigerator Timer magvitron
    A timer for turning ON/OFF the refridgerator at peak load hours (6pm to 10 pm) using 8051
  2. I'm sick of counter requests.. So here's a few Ian Rogers
    counter
  3. LM317 Adjustable 20V, 1.5A Supply with Simple SMPS Tracking Preregulator crutschow
    LM317 supply with switching tracking prereg for good efficiency and minimal heat sink requirements.
  4. Power Analysers: True RMS Readings Barry Atkins
    What is true RMS or why does that matter?
  5. Alcohol detector and engine cut off. magvitron
    in order to start the car you have to blow to the sensor having a flowsensor (can be madeform a hea
  6. "The Scavenger" A Joule Thief inspired Boost regulator. ()blivion
    Presented here is a significant step forward in simple, cheep, and efficient boost converter design
  7. Monitor I2C Communications through RS232 languer
    In the past when requiring to monitor I2C communications between two devices I
  1. Articles are being shown from all child categories.
  2. Mike - K8LH

    K8LH 2-Pin 74HC595 LCD "8-bit" Backpack

    A relatively simple 2-pin LCD backpack for around $2 (USD).
    0/5, 0 votes
    Updated:
    May 23, 2014
  3. Mike - K8LH

    PIC Single-Chip 4-Digit 24-Hour Clock

    A very low parts count PIC 4-digit 24-hour clock.
    0/5, 0 votes
    Updated:
    May 20, 2014
  4. Mike - K8LH

    PIC Single-Chip 4-Digit 99-Minute Timer

    A very low parts count 4-digit 99 minute timer design.
    0/5, 0 votes
    Updated:
    May 18, 2014
  5. Mike - K8LH
    0/5, 0 votes
    Updated:
    May 18, 2014
  6. Jon Wilder
    0/5, 0 votes
    Updated:
    May 18, 2014
  7. Mosaic

    Auto Ah Capacity Tester & Logger for 12V lead acid Batteries

    Safe, autonomous Ah capacity testing with auto shutdown & recharge option.
    0/5, 0 votes
    Updated:
    May 5, 2014
  8. Val Gretchev

    Unravelling the RS-232 standard.

    The new specification defines a symmetrical hardware handshaking method by just changing RTS.
    0/5, 0 votes
    Updated:
    Apr 8, 2014
  9. crutschow

    Reverse Protection of Input Power with Low Voltage Drop

    Prevent damage from accidental application of reverse voltage with minimal normal voltage drop.
    0/5, 0 votes
    Updated:
    Apr 3, 2014
  10. Val Gretchev

    Constant Current Diode

    A component that is often overlooked.
    0/5, 0 votes
    Updated:
    Apr 3, 2014
  11. Val Gretchev

    Obscure but Interesting Circuits

    Having fun with logic gate circuits that may be useful.
    0/5, 0 votes
    Updated:
    Apr 1, 2014
  12. Hajaaar
    0/5, 0 votes
    Updated:
    Mar 29, 2014
  13. crutschow

    Adjustable Low Drop Current Limiter

    Current limiter with max voltage drop of ~1V during normal operation, minimizing dropout voltage.
    0/5, 0 votes
    Updated:
    Mar 29, 2014
  14. tomizett
    0/5, 0 votes
    Updated:
    Mar 16, 2014
  15. ronv

    Swinear Power Supply

    Higher power linear regulator
    4/5, 1 vote
    Updated:
    Jan 16, 2014
  16. Val Gretchev

    Another Vehicle Loop Detector Circuit

    Detection of large metal objects (cars) by inductive loop sensors.
    0/5, 0 votes
    Updated:
    Jan 12, 2014
  17. Val Gretchev

    Constant Current Supply for High Power LEDs

    A high efficiency constant current supply based on a switching regulator.
    0/5, 0 votes
    Updated:
    Jan 11, 2014
  18. kinarfi

    Power Supply + & - 20v 15+ amps

    Power supply using LM2576 & LT1270A
    0/5, 0 votes
    Updated:
    Jan 11, 2014
  19. kinarfi

    FORWARD & REVERSE, VARIABLE SPEED MOTOR CONTROLLER

    FORWARD & REVERSE, VARIABLE SPEED MOTOR CONTROLLER WITH POTENTIOMETER
    0/5, 0 votes
    Updated:
    Jan 11, 2014
  20. Barry Atkins

    Power Analysers: True RMS Readings

    What is true RMS or why does that matter?
    5/5, 1 vote
    Updated:
    Nov 8, 2013
  21. magvitron

    Forward / Reverse motor controller using 8051

    Used in an automatic car jack using an IR remote control, (the fwd and bwd turn will lift/lower )
    0/5, 0 votes
    Updated:
    Sep 29, 2013