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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.

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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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  1. Electronic Projects 79
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Top resources

Most resources

  1. hesam_m
    54

    hesam_m

  2. crutschow
    31

    crutschow

  3. danadak
    7

    danadak

  4. languer
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View all featured resources
Resource icon crutschow
LM317 12V Lead-Acid Battery Charger With 3-Step Auto CC/CV and Trickle-Charge
Lead-acid battery charger using LM317 provides auto CC charge, CV top-off, and final trickle-charge
5.00 star(s) 2 ratings
Updated
Resource icon languer
Expanding on Simple Weight Scale
Weight Scale using SFE's OpenScale platform
0.00 star(s) 0 ratings
Updated
Resource icon crutschow
Simple Push-Button Power On/Off Circuit With Delay
PB latch circuit provides on/off delay function to prevent accidental power switching
0.00 star(s) 0 ratings
Updated
Resource icon crutschow
PWM Input Constant-Current Circuit With 3-Pole Active Filter
Circuit combines PWM controlled constant-current source with 3rd-order filter using one opamp
0.00 star(s) 0 ratings
Updated
Resource icon languer
Building a Simple Weight Scale 2018-08-12
Weight Scale built using SFE's OpenScale platform
0.00 star(s) 0 ratings
Updated
Resource icon crutschow
Low Power PWM Stepper Motor Driver 2018-08-05
Stepper motor driver applies full voltage for fast stepping, then PWM for low power hold
0.00 star(s) 0 ratings
Updated
Resource icon crutschow
Electronic Power Rheostat 2018-07-23
Circuit generates an equivalent high power resistance that can be adjusted with a potentiometer.
4.00 star(s) 1 ratings
Updated
Resource icon crutschow
Radio Push-Button Micropower Circuit Using CD4049 Inverter 2018-07-18
A simple circuit using the common CD4049 to generate the Radio PB Function
0.00 star(s) 0 ratings
Updated
Resource icon unclejed613
output impedance experiments 2018-07-10
Damping factor, and how an amplifier controls voice coil motion.
0.00 star(s) 0 ratings
Updated
Resource icon crutschow
Notch Filter Allows Single Pot Adjustment of Notch Frequency With Little Change In Its High Q Value 2018-06-01
Notch filter Q is largely independent of component tolerances and notch frequency adjustment.
0.00 star(s) 0 ratings
Updated
Resource icon crutschow
Battery - Accurate, Low-Voltage Cutoff To Prevent Complete Battery Discharge 2018-05-29
Circuit disconnects battery from operating accessories at a specific voltage to avoid dead battery.
5.00 star(s) 1 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
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 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 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
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
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
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
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

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