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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. crutschow

    Low Power CMOS PWM Circuit With Buffer Output Requires Only 5 Components

    CD4093 PWM circuit uses only 2 diodes, 1 capacitor, and 1 potentiometer
    0/5, 0 votes
    Updated:
    Feb 9, 2017
  3. crutschow

    Single Supply Non-Inverting Av=1 Op Amp Circuit With Simple Offset Voltage Calculation

    Circuit generates Av=+1 with simple offset calculation using std. resistor values
    0/5, 0 votes
    Updated:
    Feb 8, 2017
  4. crutschow
    0/5, 0 votes
    Updated:
    Jan 30, 2017
  5. crutschow

    Simple, Efficient, Inexpensive, High-Power LED Constant-Current Switching Supply

    Constant-current hysteretic buck regulator supply for high power LEDs, efficiency of 90%
    0/5, 0 votes
    Updated:
    Jan 25, 2017
  6. crutschow

    MOSFET Bridge Rectifier With Low Forward Drop, Works With Capacitive Output

    MOSFET Bridge Rectifier gives high efficiency for low voltage, high current AC-DC supplies
    0/5, 0 votes
    Updated:
    Jan 17, 2017
  7. spec

    LINEAR POWER SUPPLIES: THEORY & CIRCUITS

    Linear power supply core theory plus circuits that can be adapted to suit your application
    0/5, 0 votes
    Updated:
    Jan 10, 2017
  8. crutschow

    Isolated Input, MOSFET AC/DC Solid State Relay (SSR)

    Solid-state discrete AC/DC relay uses MOSFETs for low on-voltage with opto-isolated control input
    0/5, 0 votes
    Updated:
    Jan 3, 2017
  9. Mikebits
    0/5, 0 votes
    Updated:
    Jan 1, 2017
  10. spec

    Core Equipment

    What equipment do you need to get started in electronics
    0/5, 0 votes
    Updated:
    Nov 26, 2016
  11. spec

    Precision Micropower Battery Cut-off Circuit

    Simple micropowr circuit to protect batteries from under voltage
    0/5, 0 votes
    Updated:
    Nov 23, 2016
  12. spec

    Standard Three Terminal Regulator Adjusts Down to Zero Volts

    A simple circuit to get down to zero volts with a standard three terminal regulator
    0/5, 0 votes
    Updated:
    Nov 20, 2016
  13. crutschow

    Bipolar AC/DC MOSFET Low-Side Switch

    AC/DC Low-Side Switch With Low ON Resistance Uses Two N-MOSFETs and One NPN Transistor
    0/5, 0 votes
    Updated:
    Nov 7, 2016
  14. spec

    Core Components

    Which components do you need to get started in electronics?
    0/5, 0 votes
    Updated:
    Nov 1, 2016
  15. crutschow

    Two Different Full-wave Rectified Voltages From Center-tapped Transformer and Bridge Rectifier

    Two voltages, one twice the other, require only a center-tapped transformer and bridge rectifier
    0/5, 0 votes
    Updated:
    Aug 1, 2016
  16. spec

    Restore Your Valuable Documents- or Make Your Own Book

    Document repair and book binding arn't that difficult
    0/5, 0 votes
    Updated:
    May 13, 2016
  17. Ian Rogers
    0/5, 0 votes
    Updated:
    May 11, 2016
  18. spec

    Reasonably Priced Solder Station

    You don't have to pay an arm and a leg to get a decent solder station.
    0/5, 0 votes
    Updated:
    Apr 26, 2016
  19. crutschow

    Electronic DC Fuse - Simple Two Transistor Circuit

    Electronic Fuses eliminate fuse replacement and current-limit short-circuit power dissipation
    0/5, 0 votes
    Updated:
    Apr 7, 2016
  20. spec

    Both Sexes for the Price of One: PMCPB5530 complementary MOSFETs

    Low gate threshold independent n type and p type MOSFETS in a low cost minature pakage
    0/5, 0 votes
    Updated:
    Mar 31, 2016
  21. spec

    Game Changer Opamp: OPAx192 and Relations

    This new opamp form TI comes close to the ideal and opens up a wealth of design avenues
    0/5, 0 votes
    Updated:
    Feb 25, 2016