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Light Flasher Circuits
Light Flashers:  #'s - B        C - K        LO        P - S         T - Z

 

Last Updated: December 07, 2017 02:05 PM

Circuits Designed by Dave Johnson, P.E. :

High Intensity Line Powered LED Flasher - There are times when you would like to generate an intensely bright flash of light using electrical power from the AC line.  The circuit below can drive a one to three watt power LED with about 350ma of peak current.  Since the circuit drives the LED with. . . Circuit by David Johnson P.E.-December, 2008

High Power LED Flasher - Power LEDs are becoming more popular these days.  The DC input power to these devices ranges from 1 watt to 5 watts.  Normal LEDs only receive about 0.05 watts.  At this higher power, these devices can emit a lot of light. . . Circuit by David Johnson P.E.-August, 2008

High Power Flashing LED  -  The circuit converts an off-the-shelf solar powered LED path light from producing a steady state light to one that produces a flash.  This circuit includes a tiny dual Schmitt trigger inverter IC which form the pulse generator and the daylight sensor circuit . . . Dave Johnson, Lubbock TX-DC Magazine - Issue 7 Mar 2010

High Power LED Flasher  -  Power LEDs are becoming more popular these days.  The DC input power to these devices ranges from 1 watt to 5 watts.  Normal LEDs only receive about 0.  05 watts.  At this higher power, these devices can emit a lot of light . . . Dave Johnson, Lubbock TX (Aug 10, 2008)-DC Magazine - Issue 7 Mar 2010

HO Model Train Lighthouse FlasherHO train sets often have authentic looking scale model homes and buildings.  The hobby circuit below can be mounted inside a model lighthouse.  The electronic circuit drives a single LED lamp in such a way that it produces light which simulates the rotation . . . Hobby Circuit designed by Dave Johnson P.E.-July, 2006

HO Train Lighthouse Flasher RevisitedHO train sets often have authentic looking scale model homes and buildings.    A while back someone asked me to design a flashing LED light, which he could mount inside a model lighthouse and have it operate so it would appear to rotate and flash.    I designed a working circuit but I was never pleased with the results.    I’m still not 100% pleased but the revised circuit below seems to operate a bit better than the older circuit.  … [ . . . Hobby Circuit designed by Dave Johnson P.  E.  , May 2012] . . . Hobby Circuit designed by David Johnson P.E.-December, 2012

Increased power for LED FlasherPower LEDs are becoming more popular these days.  The DC input power to these devices ranges from 1 watt to 5 watts.  Normal LEDs only receive about 0.05 watts.  At this higher power, these devices can emit a lot of light . . . Hobby Circuit designed by David A. Johnson P.E.-August, 2008


Links to electronic circuits, electronic schematics, designs for engineers, hobbyists, students & inventors:

Flicker Lamp -  Having bought a cute little ‘paraffin lamp’ from a cut price shop, I decided to make it a little more interesting.  Its battery powered of course but its continuous shine and simple on / off ‘wick control’ did not make for anything like a close simulation of the real thing.  So, I replaced the on / off control with a variable potentiometer and I added flicker! __ Contact: Karen's Microprocessor Projects

Flickering Fire Effect -  This simple circuit uses four low-Wattage colored bulbs and four fluorescent lamp starters to make nice flickering flame effect

Flickering Lights -  Halloween flickering lights __ Designed by Wolf Stone

Flip Flop -  In this project we examine one of the most valuable circuits to be invented, the flip flop.  Originally it was designed with VALVES, along with its simpler version  (without the two capacitors, called a bi-stable Multivibrator) , it was realised it  __ Contact: Colin Mitchelltalking @ tpg.com.au

Flip Flop Flashers Buzzers Etc -  Several circuits here.  The familiar astable flip-flop circuit is a handy configuration for making flashers or generating squarewaves.  Here is a typical alternating LED flasher with the LEDs in the emitters instead of collectors as is normally done.  The bias resistors are directly connected __ Contact: Charles Wenzel of Wenzel Associates, Inc.

Form Fast, Portable Light Pulser -  10/16/03  EDN-Design Ideas The absence of a fast one-shot multivibrator in the entire TTL family, as well as the low-voltage swing and unwieldy supply requirements of ECL, drove us to exploit the fast transition times and low propagation delays of F-series g __ Circuit Design by SK Kaul and IK Kaul, Bhabha Atomic Research Centre, Trombay, Mumbai, India

Four Channel CAR Color Organ -  Back in the 1970's these were popular for use in homes and the colored bulbs were typically place in a box with a sheet of "rippled/bubbled" Plastic in front to break up the light patterns.  Some units gave very impressive light patterns.   __ Designed by G.L. Chemelec

Four Channel HOME Color Organ -  FOUR Channels.  All Channels are Active Band Pass Filters.   __ Designed by G.L. Chemelec

Galloping Neons -  Here is a line powered array of blinking neons designed for continuous duty.  It would be quite dangerous to power a circuit directly from the power line so some form of isolation is needed.  Since most experimenters will not have 120 volt isolation transformers __ Contact: Charles Wenzel of Wenzel Associates, Inc.

GrantronICs Projects Christmas Tree -  flashes LEDs mounted to Christmas tree shape PCB, kit from kitsrus.  com __ Designed by © Grantronics Pty Ltd

Green/Red Multiflasher -  NOTE : Must register on this site __ Designed by Published in Elecktor July/Aug, 2010

Hacking the Kodak Max Single Use Flash Camera into a Self-Repeating Strobe -  NOTE this approach is recommended mainly for Homebrewing a strobe that is powered by a single 1.5 volt battery.  If you can use a higher supply voltage, there are better ways to do this.   __ Designed by Don Klipstein

Halloween Flashing-Eyes Badge -  Two LED-eyes follow the rhythm of music or speech; 3V Battery-operated device suitable for pins or badges __ Contact: Flavio Dellepiane, fladello @ tin.it

Halloween Pumpkin with Colorful LED Candles -  Extensive tutorial on putting blinking LEDs and different colored LEDs into jack-o-lanterns.  Includes schematics, solderless breadboard photos, and three movies  (the blue pulsing LED is my favorite) .  Great way of getting started in electronics! Although this was written for Halloween, the techniques are applicable for Christmas votive candles as well.   __ Contact: David Cook

HB-LED flashing beacon repurposes switching regulator -  EDN-Design Ideas 08/04/2014     A classic, low-cost “switcher” IC is repurposed to flash a high-brightness LED in this minimal-parts-count Design Ideas -  __ Circuit Design by T A Babu

H-Bridge -  This circuit drives small DC motors up to about 100 watts or 5 amps or 40 volts, whichever comes first.  Using bigger parts could make it more powerful.  Using a real H-bridge IC makes sense for this size of motor, but hobbyists love to do it themselves, and I thought it was about time to show a tested H-bridge motor driver that didn't use exotic parts __ Designed by Bob Blick

Heart of LEDs -  Here is a fun project that you can give to that "someone special".  How about Mother's Day or did you forget St Valentine's Day?.   __ Designed by © Grantronics Pty Ltd

Heart-shaped Badge -  The badge consists of eight LEDs arranged in the shape of a heart.  One LED is lit at a time and this 'chases' round the shape.  It would be easy to adapt this project to create other shapes with the eight LEDs.   __ Designed by John Hewes

High Intensity Line Powered LED Flasher -  There are times when you would like to generate an intensely bright flash of light using electrical power from the AC line.  The circuit below can drive a one to three watt power LED with about 350ma of peak current.  Since the circuit drives the LED with. . . Circuit by David Johnson P.E.-December, 2008

High Power Flashing LED  -  The circuit converts an off-the-shelf solar powered LED path light from producing a steady state light to one that produces a flash.  This circuit includes a tiny dual Schmitt trigger inverter IC which form the pulse generator and the daylight sensor circuit . . . Dave Johnson, Lubbock TX-DC Magazine - Issue 7 Mar 2010

High Power LED Flasher -  Power LEDs are becoming more popular these days.  The DC input power to these devices ranges from 1 watt to 5 watts.  Normal LEDs only receive about 0.05 watts.  At this higher power, these devices can emit a lot of light. . . Circuit by David Johnson P.E.-August, 2008

HO Model Train Lighthouse Flasher -  HO train sets often have authentic looking scale model homes and buildings.  The hobby circuit below can be mounted inside a model lighthouse.  The electronic circuit drives a single LED lamp in such a way that it produces light which simulates the rotation . . . Hobby Circuit designed by Dave Johnson P.E.-July, 2006

HO Train Lighthouse Flasher Revisited -  HO train sets often have authentic looking scale model homes and buildings.    A while back someone asked me to design a flashing LED light, which he could mount inside a model lighthouse and have it operate so it would appear to rotate and flash.    I designed a working circuit but I was never pleased with the results.    I’m still not 100% pleased but the revised circuit below seems to operate a bit better than the older circuit.  … [ . . . Hobby Circuit designed by Dave Johnson P.  E.  , May 2012] . . . Hobby Circuit designed by David Johnson P.E.-December, 2012

How to Make Chase Lights -  This example shows3 track chase lights built from3-Christmas light sets and1-light chaser controller

Increased power for LED Flasher -  Power LEDs are becoming more popular these days.  The DC input power to these devices ranges from 1 watt to 5 watts.  Normal LEDs only receive about 0.05 watts.  At this higher power, these devices can emit a lot of light . . . Hobby Circuit designed by David A. Johnson P.E.-August, 2008

Inexpensive LED Drives Flash & Beep -  06/05/97 EDN-Design Ideas Sometimes, you need an alarm that is both audible and visible in an application that's stingy with space, power, and budget.  The circuit in Figure 1a is compact, efficient, and inexpensive.  The F336HD flashing LED  (part no.276-036 at Radio Shack) is a useful device.  It operates directly from 5V and produces a consistent pulse of light at approximately 1 Hz without a time-constant capacitor.    __ Circuit Design by Dennis Eichenberg, Parma Heights, OH

Interior light extender -  All modern cars are fitted with door-switch operated courtesy lights.  Useful devices, but not quite as useful as they might be because they are so arranged that the light is extinguished as soon as you close the doorjust when you need light to find the ignition switch.  do up your seat belt etc.  How much better if the internal light stayed on for a few seconds after the door is closed.   This little project does just that.  It provides a four-second delay  (approx) after which the interior light slowly dimsbeing finally extinguished after 10 or 12 seconds.   The unit is very simple to construct and once tested and properly insulated it may be wired across one of the car door switches.   In operation, after a short delay the lights will gradually dim until they are completely extinguished.  There is no battery drain in the off-state as the unit only operates during the delay period after the door is closed.__ CdS Electronic

Jumbo Flashing LED Lights -  This is a flashing led lights circuit powered from a 12V DC power supply that uses the well known 555 IC.  Flashing lights have many and varied applications in life.  They are used as warning lights on highways to increase road safety, as beacons on towers, as advertising signs on shop windows, and so on.  Mechanically operated __ Designed by T.K. Hareendran

Knight Rider Lights-LED Chaser -  I don't know why, but people like blinking lights.  You see LED chasers everywhere, in TV shows    (Knight Rider) , movies, and store windows.  This schematic is my version of a simple 10 LED chaser.  There is no 555 timer used because __ Designed by Aaron Cake

Knight Rider Look-a-like Lights -  12 Volt Knight Rider, "Look-A-Like", Lighting Systems Revised "JAN.2, 2008"  (Errors on Knight-3, Corrected)  __ Designed by G.L. Chemelec

Knightrider lights for Model cars -  This simple circuit drives 6 LEDs in 'Knightrider scanner mode'.  Power consumption depends mainly on the type of LEDs used if you use a 7555  (555 CMOS version) . __ Contact: IQ Technologies

Kodak Max flash unit -  Schematic for the Kodak Max flash unit __ Designed by Don Klipstein

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Light Flashers:  #'s - B        C - K        LO        P - S         T - Z


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