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  • 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.

Electronic Projects

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Top resources

Most resources

  1. hesam_m
    51

    hesam_m

  2. crutschow
    31

    crutschow

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    7

    danadak

  4. languer
    4

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View all featured resources
Resource icon crutschow
Low Power CMOS PWM Circuit With Buffer Output Requires Only 5 Components 2017-02-09
CD4106 PWM circuit uses only 2 diodes, 1 capacitor, and 1 potentiometer
0.00 star(s) 0 ratings
Updated
Resource icon crutschow
PWM Voltage Control Of Standard Linear IC Regulators 2017-02-13
PWM allows easy control of linear regulator output voltage for μP based power supplies
0.00 star(s) 0 ratings
Updated
Resource icon crutschow
Efficient MOSFET Bridge Rectifier for Resistive Loads, Or Input Power Auto Polarity Gating 2017-03-07
MOSFET bridge for efficient resistive load rectification, or indifference to input power polarity.
0.00 star(s) 0 ratings
Updated
Resource icon crutschow
Triple Output Tracking Power Supply Uses Standard 3-Terminal Regulators, Adjusts to Zero Out 2017-03-09
Single +output plus dual +/- tracking output supply using common 3-terminal regulators goes to 0V.
0.00 star(s) 0 ratings
Updated
Resource icon crutschow
Missing Pulse Detector (Watchdog Timer) Circuits Using LM339/393, CD4093, or 555 2017-04-15
Watchdog timer circuits, will timeout on either high or low hang
0.00 star(s) 0 ratings
Updated
Resource icon crutschow
Analog Max/Min Value or Bi-Level Clamp Circuits 2017-05-01
Circuit outputs the min. or max. value of several analog inputs, or provides accurate bi-level clamp
5.00 star(s) 1 ratings
Updated
Resource icon crutschow
Resonant Inductive Charging of Capacitor Improves Efficiency And Amount of Stored Energy 2017-05-30
Capacitor resonant charging can nearly double the charge efficiency and quadruple energy stored.
5.00 star(s) 1 ratings
Updated
Resource icon crutschow
LM317 CC/CV 12V Lead-Acid Battery Charger With Automatic Trickle Charge 2017-06-18
Lead-acid battery charger starts with constant-current and ends with constant-voltage trickle charge
0.00 star(s) 0 ratings
Updated
Resource icon crutschow
Push-Button Relay Latch Circuit With Simple Debounce 2017-06-20
PB alternate action circuit uses CD4013 FF with simple debounce to control relay (or other load).
0.00 star(s) 0 ratings
Updated
Resource icon Ian Rogers
Sound / Frequency on a micro 2017-07-30
Sound
5.00 star(s) 1 ratings
Updated
Resource icon crutschow
Simple & Inexpensive Ideal-Diode MOSFET Circuits 2017-09-19
Good for low-drop diode applications, such as blocking battery back-charging or brownout protection
4.67 star(s) 3 ratings
Updated
Resource icon crutschow
Simple 15V, 1.5A, CC/CV Bench Power Supply Circuit - (With Optional Laptop Charger Source) 2018-02-05
Inexpensive, single regulator IC power supply with I and V adj. to zero, includes I & T monitors
5.00 star(s) 1 ratings
Updated
Resource icon crutschow
Binary ↔ BCD Conversion Using Counters 2018-02-23
Combination of Binary & BCD counters do Binary↔BCD conversions.
0.00 star(s) 0 ratings
Updated
Resource icon crutschow
Low Drop, High-Side Sense Current Limiter Adjusts to Zero 2018-03-08
Two simple high-side sense current limit circuits adjust to zero current and have low voltage drop
0.00 star(s) 0 ratings
Updated
Resource icon crutschow
Low-Dropout CC/CV 12V Lead-Acid Battery Charger With Auto Trickle-Charge 2018-03-11
Minimal circuit for auto CC/CV charging. Option allows pot adjustment of charge current.
0.00 star(s) 0 ratings
Updated
Resource icon crutschow
Power Saving DC Solenoid Driver Provides Initial Full Power Actuation Followed By PWM Hold 2018-03-31
Circuit applies full actuation power to solenoid with PWM hold reducing power to 12-25% of nominal
0.00 star(s) 0 ratings
Updated
Resource icon crutschow
Lead-Acid Battery Charger, 12V 6A, Using Hysteretic SMPS Circuit With Auto Float-Charge 2018-04-09
Simple, efficient, lead-acid battery charger auto switches from CC to CV mode
0.00 star(s) 0 ratings
Updated
Resource icon crutschow
555 One-Shot Timer Has Zero Quiescent Power 2018-04-17
One-shot timer uses no power when quiescent, useful for battery powered circuits
0.00 star(s) 0 ratings
Updated
Resource icon languer
Achieving Low Power on Adafruit Trinket 2018-05-12
Low Power on Trinket MCU
0.00 star(s) 0 ratings
Updated
Resource icon languer
Low Cost Alternative USB-to-GPIB Controller 2018-05-12
USB-to-GPIB Controller
0.00 star(s) 0 ratings
Updated

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