Now showing circuits 1-20 of 69. Sort by

LEDs with resistor biasing

LEDs with resistor biasing PUBLIC

LEDs are usually found with a resistor in series to select the desired current (and therefore brightness and power consumption).

by CircuitLab | updated June 07, 2017

bias-point   current-limiting   led  

magnetic switch/transistor

magnetic switch/transistor PUBLIC

A circuit from a Forrest Mims III book. Comments welcome.

by ronneyg | updated September 05, 2016

led   transistor  

LED Low Level Lighting

LED Low Level Lighting PUBLIC

LED yard lighting. Used to illuminate back yard with enough light to navigate paths safely at night.

by RBClarke | updated March 11, 2016

constant-current-source   led  

MAX7221 MAX7219 Binary Controller

MAX7221 MAX7219 Binary Controller PUBLIC

by Kaptn_flint | updated August 13, 2015

binary   decoder   digit   display   led   segment  

Basic LED Circuit

Basic LED Circuit PUBLIC

by paulmirel | updated August 08, 2015

basic   led   ohms-law  

traffic Light

traffic Light PUBLIC

by nkeck | updated February 11, 2015

555   led   light   logic   not   traffic  

Dark activated LED

Dark activated LED PUBLIC

This circuit uses 2 NPN Transistors and an LDR to create a automatic on for an LED in this case. It has very good response, and low power consumption in light.

by joiseystud | updated January 17, 2014

led   photoresistor  

GDB LED circuit

GDB LED circuit PUBLIC

Eight Gravity Development Board LED's to make cool artistic displays or output engineering data.

by SolX2010 | updated January 12, 2014

gdb   gravity-development-board   led   sol-x   solar-system-express  

8-LED color oscillator

8-LED color oscillator PUBLIC

by hbs22 | updated December 16, 2013

555   led   logic-gate  

555Timer

555Timer PUBLIC

by St0rmingBr4in | updated September 01, 2013

555   led   ne555   simple  

Simple near-UV led circuit

Simple near-UV led circuit PUBLIC

This diagram represents an LED array powered by two "C" batteries in series with a resistor to control current flow. All of the hardware needed to build this circuit can be purchased at Radioshack for...

by Elfrotardo | updated August 07, 2013

c-battery   led   led-array   near-uv   parallel-led   ultra-violet   uv  

led1

led1 PUBLIC

Basic polarization circuit

by nliebeaux | updated July 19, 2013

led   ohms-law   qed123  

Reverse Joule Thief Light

Reverse Joule Thief Light PUBLIC

A novel circuit to charge a Li-ion battery from a 2v Solar cell

by qs | updated July 14, 2013

joule-thief   led   lighting  

LA001DC-firestarter

LA001DC-firestarter PUBLIC

An array of prefab 4.5v L.E.D. modules (with their resistors removed), chained together for use with 12VDC supply.

by asp | updated July 02, 2013

12vdc   array   danger   fire   hackemup   led  

28x 5050 6.5k LED AC MAIN

28x 5050 6.5k LED AC MAIN PUBLIC

by glococo | updated June 14, 2013

led   led-array  

12-60V Constant Current LED Driver + PWM Dimmer

12-60V Constant Current LED Driver + PWM Dimmer PUBLIC

by serisman | updated June 07, 2013

555   constant-current   led   led-driver   led-string   pwm  

PWM LED Dimmer - 12V 8A (96W)

PWM LED Dimmer - 12V 8A (96W) PUBLIC

Reverse Engineered PWM LED Dimmer from eBay 12V 8A (96W) 96W12V-TM1-1 http://www.ebay.com/itm/251257623888

by serisman | updated June 06, 2013

555   dimmer   led   lm358   pwm  

Simple LED

Simple LED PUBLIC

by Owning_Phoenix | updated June 01, 2013

led  

Auto Off LED

Auto Off LED PUBLIC

by skillethelper1 | updated May 11, 2013

led  

Led Flasher

Led Flasher PUBLIC

This is a circuit which uses an npn and pnp transistor to briefly flash an LED every few seconds

by shagas | updated May 06, 2013

flasher   led   led-flasher   npn   pnp   timed   transistor  

More tags

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