-
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.
Resources
Categories
Top resources
-
-
Getting Started with Android Programming: Creating Your First AppA tutorial to help you write a simple Hello World! Android application
- DerStrom8
- Updated:
-
Simple & Inexpensive Ideal-Diode MOSFET CircuitGood for low-drop diode applications, such as blocking battery back-charging or brownout protection
- crutschow
- Updated:
-
Refrigerator TimerA timer for turning ON/OFF the refridgerator at peak load hours (6pm to 10 pm) using 8051
- magvitron
- Updated:
-
Achieving Low Power on Adafruit Trinket
2018-05-12
Low Power on Trinket MCU
Simple, efficient, lead-acid battery charger auto switches from CC to CV mode
555 One-Shot Timer Has Zero Quiescent Power
2018-04-17
One-shot timer uses no power when quiescent, useful for battery powered circuits
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
Minimal circuit for auto CC/CV charging. Option allows pot adjustment of charge current.
Two simple high-side sense current limit circuits adjust to zero current and have low voltage drop
Binary ↔ BCD Conversion Using Counters
2018-02-23
Combination of Binary & BCD counters do Binary↔BCD conversions.
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
Good for low-drop diode applications, such as blocking battery back-charging or brownout protection
PB alternate action circuit uses CD4013 FF with simple debounce to control relay (or other load).
Lead-acid battery charger starts with constant-current and ends with constant-voltage trickle charge
Capacitor resonant charging can nearly double the charge efficiency and quadruple energy stored.
Circuit outputs the min. or max. value of several analog inputs, or provides accurate bi-level clamp
Watchdog timer circuits, will timeout on either high or low hang
Momentary latching relay
2011-12-29
Just for fun I designed and built this simple circuit which drives a monostable relay by a singol m
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.
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.
PWM allows easy control of linear regulator output voltage for μP based power supplies
CD4106 PWM circuit uses only 2 diodes, 1 capacitor, and 1 potentiometer
Latest threads
-
-
-
-
Adding DC Offset bias to AC Signal
- Started by Luis1997
- Replies: 2
-
Should the surface of the 100 Watt LED touch fully the heatsink?
- Started by mw-b
- Replies: 3
