1.3 Volt IC Flasher, Oscillator, Trigger or Alarm: National
Semiconductor Application Notes,04-Nov-1995 |
1.5 Volt LED Flashers #1: four circuits with description
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10 Channel LED Sequencer: based on4017 |
10 LED Sequencer: in PDF format, text in Finnish
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10 Stage Light Sequencer: flashes10 low voltage bulbs,
operates at10-25-Volt voltage, in PDF format, text in Finnish
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12 Stage Neon Sequencer (NE 2 / NE 51): uses small power
70-Volt neon bulbs |
12 Volt Color organ and Reverb unit: |
12 Volt Strobe Circuit: this circuit uses12V DC instead od
mains AC. This is very good idea if you dont want to mess with
direct mains voltage connected circuit or you want to run the
Strobe from batteries. |
120 Volt AC Lamp Chaser using Solid State Relays: This
circuit is similar to the LED clock using12 neon indicator lamps
instead of LEDs. It operates from2 high capacity ni-cad cells
(2.5 volts) which keep it going for a couple weeks. High voltage
(70 volts) for the neon lamps is obtained from a small switching
power supply using a 74HC14 Schmitt trigger Squarewave
oscillator, high voltage switching transistor, and10 mH high Q
inductor. Most any small PNP transistors can be used that have a
C/E voltage rating of 80 or more. |
12v car lamp flasher: |
16 Stage BiDirectional LED Sequencer: |
2 LED
Flasher: simple two transistor circuit which blinks two LEDs
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2 Transistor LED Flasher #1: |
2 Transistor LED Flasher #2: |
2 Wire Lamp Flasher: Ideal to operate3 to24 Volt DC existing
on-Circuit lamps LED operation is also possible
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220 Volt AC Light Flasher: flashes1-light bulb at adjustable
speed, in PDF format, text in Finnish |
220 Volts Flashing Lamps: Especially designed for Christmas
tree lamps to replace old thermally-activated switches
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3 Way Blinking LEDs : |
3rd Brake Light Pulser: |
40 LED Bicycle Light (555 Timer 6 Volt): |
9v neon flasher: |
Adjustable Flashing LED: |
Adjustable Strobe Light: 120-Volt mains power source, up
to20 Hz flash rate |
Alternating LED Blinker uses Four Parts: 03/26/98 EDN-Design
Ideas / Grand Prize Winner1998 |
Alternating LED Flasher uses Minimal Parts: 11/20/97 EDN-Design
Ideas / A pair of alternating flashing LEDs makes an excellent
visual alarm, this alternating LED flasher is based on one LED
with built-in flashing function and two transistors driving the
other normal LED |
Alternating LEDs Flasher: Mar-03 |
Automatic Grade Crossing Flasher Circuit:
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Back & Forth Flasher: for16 LEDs |
Basic LM3909 LED Flasher: runs from1.5-Volt battery
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Beat Tracking Strobe: project description using AT90S8515
microcontroller and some electronics |
Bicycle Back Safety Light: Flashing13 LED unit,3V supply
Also suitable for jogger/walkers |
Bicycle Safety Lights: |
Blinking lights: |
Christmas Light Flasher: Mar-03 |
Color Organ #1: make different colored bulbs light at
different frequencies of music, connects to speaker outputs
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Color Organ #2: one lamp color organ |
Dancing LEDs : A LED sequencer, following the rhythm of
music or speech 9 Volt Battery-operated portable unit
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Disco Lights:
software and hardware for controlling disco lights from your PC
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Disco Style Strobe Light: low power, works on110VAC
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Dual Alternating Flashing Light: |
Dual Flashing Headlights: To simulate a Gyralite (dual
flashing headlights) requires 5 volt power supply too.
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Dual Tandem Flashing Light: |
Emergency Strobe Flasher Generates 250V: 08/05/99 EDN-Design
Ideas / PDF contains multiple circuits - scroll to find this
circuit.
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Expandable 16 Stage LED Sequencer: |
Fantastic Atom Expander: "exploding atom" effect using 98
LEDs |
Flash Slave Trigger: Flash slaves are used when you need to
supplement one flash unit with one or several more. This slave
trigger simply triggers those other units. It does this by
"seeing" the first flash (using a phototransistor) and
triggering the other flashes a few microseconds later. The
sensitivity of the circuit is adjustable to compensate for
ambient light or dimmer than usual master flashes.
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Flasher Circuit : LED Flasher, suitable for Christmas Lights |
Flasher Ideas: Files containes several circuits: LED
flasher, silent metronome, low battery indicator, high voltage
generator |
Flashing Beacon: |
Flashing Christmas LED Display: |
Flashing Flashlight : |
Flashing lights: for a roadwork warning and a train shop
sign. |
Flashing Neon Christmas Lights: |
Flashing Neons (NE 2 / NE 51): one, two or3-neon indicator
bulbs can be made to flash in sequence |
Flashing Pin: Modify a flashing pin for your rolling stock
or locomotives |
Flashing railroad crossings: two versions
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Flashing railroad crossings: two versions |
Flashing Rear End Device For DCC Systems:
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Flashing Road Baricade : |
Fleapower flasher draws less than 50 �A: 01/23/03 EDN-Design
Ideas / Some applications require a circuit to indicate that a
battery's voltage has fallen below a certain value. However, if
you don't frequently check the indicator, the low-battery
indicator itself can easily discharge the battery. The circuit
in Figure 1 indicates when the battery voltage has dropped below
a preset value... |
Flickering Fire Effect: This simple circuit uses four
low-Wattage colored bulbs and four fluorescent lamp starters to
make nice flickering flame effect. |
Flip Flop Flashers, Buzzers, Etc.: |
Grantronics Projects Christmas Tree: flashes LEDs mounted to
Christmas tree shape PCB, kit from kitsrus.com
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Hacking the Kodak Max Single Flash Camera Into a Self Repeating
Strobe: this approach is recommended mainly for homebrewing
a strobe that is powered by a single1.5 volt battery. If you can
use a higher supply voltage, there are better ways to do this.
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Headlight Flasher: |
How to Make Chase Lights: This example shows3 track chase
lights built from3-Christmas light sets and1-light chaser
controller |
ICL7660 LED Flasher: |
Inexpensive LED Drives Flash & Beep Circuit: 06/05/97 EDN-Design
Ideas |
Knight Rider Lights Project: for 6 LEDs |
Lantern Flasher / Dimmer: |
Lantern Flasher/Dimmer: |
LED Chaser: simple10 LED chaser |
LED Flasher & TRAC Pulser Work off AC Line: 01/15/98 EDN-Design
Ideas |
LED Flasher indicates Low Battery Condition: 01/02/97 EDN
Design Ideas |
LED Flasher, TwoTransistor: |
LED Flasher: built using two transistors and some other
components |
LED flasher-a : |
LED flasher-b: |
LED or Lamp Flasher: Minimum parts counting. Designed for3V
battery operation |
LED or Lamp Pulser: Astonishing effect4.5 Volt supply
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LED Pulser With Audible Output: |
LED Sign: uses two LED arrays to form a 7 X 10 matrix. It
produces moving messages or animations stored in an EPROM.
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LED Stroboscope: This simple LED Stroboscope circuit which I
designed, maintains constant
brightness of the LED at all frequencies. This is accomplished
by duty-cycle and pulse width control. It is useful for
measuring the speed of motors. It can easily be calibrated using
a watch so you don’t need a frequency counter.
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LEDs Flasher, Alternately: Classic astable multivibrator
using2 transistors. Transistor is not critical. Try
these:2N4401,2N2222, NTE123A, NTE123AP, NTE159, TUP/TUN and
those in your junk box, you may find that most of them will
work. |
Light Sequenced Candelabra: |
Line Powered Flashers: Great for Christmas lights, etc. |
Low Power LED Flasher: based on LM3909 |
Mains Operated Christmas Star: |
McMurtrie's Self Powered Flashing LED: circuit which uses a
LED as solar panel to charge a capacitor which flashes a LED,
the LED will blink when the circuit is placed in bright light |
Mini Pocket Strobe Circuit: works from two1.5-Volt AA
batteries, based on modified camera flash unit
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Mini Strobe Light using LED: adjustable for flash rates
between40 Hz and166 Hz, based on555 Timer |
Miniature Strobe Light: |
Multimedia Electronic Crib: microcontroller based light
controller which generates sequence of day-night with light
fading, optional serial control interface, based on 87C51
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Multivibrator LED Flasher: |
Neon Lamp Flasher Box |
Nocturnal Animals Whisker: A low-rate flashing lamp drives
away undesired visitors Automatic on-off operation
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PC Parallel Port Output Capabilities: includes instructions
how to connect a relay to PC parallel port |
Power line outage flashes red alert: 06/13/2002 EDN -
Design Ideas / This Design Idea expands on a circuit in a
previous one to configure a power-outage detector with a
flashing alarm (Figure 1, Reference 1). The circuit plugs into a
mains outlet and uses trickle-charged nickel-cadmium batteries.
The green-LED monitors the presence of line voltage. The
BZV55-C4V3 zener diode, D1 protects the batteries against
overvoltage.. |
Ringing Phone Light Flasher: when the ph1-rings, lights
connected to circuit flash |
Sequential LED Flasher: for10 LEDs |
Simple Flashing Light: A simple flashing light circuit |
Simpler Flashing Light: An even simpler flashing light
circuit |
Simplest Flashing Light: The simplest flashing light circuit
in the world |
Solid Stateher has Short Circuit Protection: 1/16/97 EDN-Design
Ideas / Switches an inductive or resistive grounded load using a
bootstrapped n-channel power MOSFET and features short-circuit,
reverse-polarity, and transient-input-voltage-spike protection,
operates from18 to30-Volt DC, and the circuit can handle as much
as approximately10A with proper heat sinking of the FET |
Special Effects From a "Six Pack": Four channel Sequencer to
Analog Dimmers and idea how to couple relay to the circuit
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Strobe Controller: Simple controller for professional
stroboscopes, adjust the flash rate in1.15 Hz range
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Third Brake Light Pulser: |
Three Way Blinking LEDs : |
Traffic Light Control Circuit (74145): This page features a
very basic traffic light circuit that is built around the TTL
family 74145 -1 of10 Decoder. The circuit is designed to drive
light emitting diodes that are connected in a common anode
arrangement. |
Traffic Light Controller: controls on3 LED traffic light
sequence |
Two LED
Flasher: simple two transistor circuit which blinks two LEDs
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Two Transistor LED Flasher #1: |
Two Transistor LED Flasher #2: |
Two Wire Lamp Flasher: Ideal to operate3 to24 Volt DC
existing on-Circuit lamps LED operation is also possible
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Typical Strobe Light Trigger Circuit: |
Variable Intensity Variable Frequency Strobe:
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Visual Metronome: |
White LED driver touts high efficiency: 06/12/03 EDN-Design
Ideas / PDF contains multiple circuits - scroll to find this
circuit |
White LED Flashlight: |
Xenon Flash & Strobe Page: |
Xenon Strobe Light #1: |
Xenon Strobe Light #2: works from115-Volt AC line
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