1. Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
    Dismiss Notice

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. spec

    Precision Micropower Battery Cut-off Circuit

    Simple micropowr circuit to protect batteries from under voltage
    0/5, 0 votes
    Updated:
    Nov 23, 2016
  3. 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
  4. 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
  5. spec

    Core Components

    Which components do you need to get started in electronics?
    0/5, 0 votes
    Updated:
    Nov 1, 2016
  6. 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
  7. 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
  8. Ian Rogers
    0/5, 0 votes
    Updated:
    May 11, 2016
  9. 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
  10. 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
  11. 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
  12. 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
  13. spec

    Main-Slave Controller

    Circuit to turn a secondary device on automatically when the main device operates.
    0/5, 0 votes
    Updated:
    Dec 9, 2015
  14. crutschow

    Motorcycle Regulator-Rectifier With Low Power Dissipation

    Low power regulator design for permanent magnet alternators improves reliability
    0/5, 0 votes
    Updated:
    Oct 31, 2015
  15. crutschow

    Push Button On/Off, Low Quiescent Power, High-Side MOSFET Power Switch

    Simple high-side switch requires only two active devices and a few passive parts
    0/5, 0 votes
    Updated:
    Oct 18, 2015
  16. Willen

    The simplest constant current limiter with 'load indication'

    A very simple constant current limiter circuit with a tricky load indicator
    0/5, 0 votes
    Updated:
    Sep 2, 2015
  17. Val Gretchev

    Vacuum Tube Power Supply

    A stand-alone power supply for use with vacuum tube amplifiers, radios, and test equipment.
    0/5, 0 votes
    Updated:
    Aug 26, 2015
  18. crutschow

    Radio Push Button Micropower Circuit Using Two Common ICs

    Two common ICs generate the Radio PB Function for up to 8 PBs, (16 PBs with 2 additional chips).
    0/5, 0 votes
    Updated:
    Aug 25, 2015
  19. Val Gretchev

    8-Digit Numeric LED Display

    A display driver module for 8 digits with only 9 lines.
    0/5, 0 votes
    Updated:
    Jul 9, 2015
  20. crutschow

    Audio Isolation With Standard Optical Isolator

    Current Drive Improves Standard Optical Isolator Linarity For AC Audio Frequency Applications
    0/5, 0 votes
    Updated:
    Jun 10, 2015
  21. crutschow

    Audio-Taper Response From Modified Linear Potentiometer

    Simple Modification Allows Linear Potentiometer to Generate A Quasi Audio-Taper Logarithmic Response
    0/5, 0 votes
    Updated:
    Jun 9, 2015