|
A Dual Alternating Flashing Light - This project is best for mounting on a layout to light a crossing or ring a bell. __ Designed by ML Rollins A Dual Tandem Flashing Light-Powered by a 9 Volt Battery - This circuit is powered by a 9 volt battery, suitable for warning lights on a tall structure. (Personally, I can't recommend you buy anything but the Rollins Railroad Designs kit; for $4.00 you can't go wrong. The 555 IC is about $1.50 by itself at Radio Shack) . If you choose to buy all the parts yourself, realize you need ONLY two LEDs, not two of each; you should be able to mix and match colors. __ Designed by ML Rollins
A mad idea for a blacklight strobe - CAUTIONMay be both hard on your eyes and a bit disappointing __ Designed by Don Klipstein
A Neon Tube Modulator for Cars - Simple circuit connects to the sub-woofer output and modulates a neon light to the beat of the bass__ SiliconChip
A Really Bright 10W LED Floodlight - Light level rivals halogensat MUCH less power!__ SiliconChip
A repetitive trigger - Based on the 555 timer IC, useful for strobe lights. A bit on the 4017 counter IC for multiple flashes and sequences of flashes __ Designed by Don Klipstein
A Seriously Bright 20W LED Floodlight - Last February, we published a DIY 10W LED Floodlight, which has been enormously popular. We said that one was almost blindingbut to paraphrase Croc Dundee, that's not bright. THIS one is BRIGHT!__ SiliconChip
A Simple Circuit Light Control Switch - This is a simple LM311 Comparator based switch which can be used for various purposes: __ Designed by Nina Gajjar
A Simple Circuit light flashing - This circuit use 2 transistor and some components.
A Simple Circuit Musical Light - The circuits for musical lights available in the market are highly expensive and based on microcontrollers. Also, their programming is very difficult. Here is a simple and cheap circuit for a...__ Electronics Projects for You
A Solar-Powered Lighting SystE - M - Need lighting away from a power source? Try this one: it's ideal for your garden, shed or even a camp site. With a 5W solar panel, a 12V SLA battery and a smart controller, it has 3-stage charging for the battery and Maximum Power Point Tracking (MPPT) for the solar panel.__ SiliconChip
A Solar-Powered Lighting System, Pt.2 - Last month we described the operation of our new off-grid lighting system, featuring free power courtesy of the sun! Now we move on to the fun part: building it!__ SiliconChip
A Voice Controlled LED Light Show using a VRStamp - A voice controlled LED light show. Train your board with your voice, then control the LED animation by saying commands! This project is fitted to the mikroC RSC-4x compiler small memory model : no mikroC licence is needed, just to show the power of the demo version!__ Bruno Gavand
AC Line Powered LEDs - The circuit above illustrates powering a LED (or two) from the 120 volt AC line using a capacitor to drop the voltage and a small resistor to limit the inrush current. Since the capacitor must pass current in both directions, a small diode is connected in parallel with the LED to provide a path for the negative half cycle __ Designed by Bill Bowden
Accent Lights Are a Crowning Achievement - 23-Nov-09 -Design News: As a way to set the mood in his family room, when he remodeled Joe Peck put multi-color LEDs behind the crown molding. The major circuit uses a microcontroller and LED drivers located in a closet, and a small circuit board at each room corner to connect to red-green-blue LEDs. Perhaps Joe's lights __ Gadget Freak-Case #153
Addressable DALI Dimming Ballast - A digitally addressable digital dimming ballast has been developed. It conforms to DALI standard requiring very few parts and operates at very low power. Applications include building management or studio lighting where it is desired to control single or groups of lamps for conserving energy, performing lamp maintenance or creating prefect light quality. The design includes the digital dimming ballast, the code of the micro-controller and a platform to control the ballast by PC. __ Designed by Cecilia Contenti and Tom Ribarich Applications Engineer, International Rectifier, Lighting Group
Adjustable Strobe Light - This Adjustable Strobe Light is the bigger brother of the plain old strobe light. This one uses a much more powerful "horse shoe" Xenon tube which produces more light. You can also control the flash rate up to about 20Hz. Do not look directly at the flash tube when this thing is on! __ Designed by Aaron Cake
Advertising Badge #1 with Flashing LED - I have seen numerous flashing light badges at trade shows and conventions. They are often handed out as gifts to promote some business. The devices often use inefficient circuits, which cause the battery power source to be quickly depleted. . . Circuit by David Johnson P.E.-March, 2002
Advertising Badge #2 with Flashing LED - This circuit uses a CD4013 dual D Flip/Flop IC. A single lithium battery will provide months of continuous LED flashing. It also has a tiny push-button switch to turn on and off the light flashing. . . Circuit by David A. Johnson P.E.-March, 2002
Alternating Flashing Light - This project is best for mounting on a layout to light a crossing or ring a bell. __ Designed by ML Rollins
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 or normal LED. Design by Dennis Eichenberg, Parma Heights, OH
Alternating LED blinker uses four parts - EDN-Design Ideas March 26, 1998 [ NOTE
: File has multiple design, scroll for this one.] The circuit in Figure 1 is an easy-to-make attention-getter and runs for a week or longer on two AA cells. In September, I used this circuit for a school fundraiser, and it helped me generate more than $100. My dad showed me a circuit in EDN that did the same thing, but it uses more parts (see "Alternating LED flasher uses minimal parts," EDN, Nov 20, 1997, pg 104) . Design by Andy Meng, Cincinnati, OH
Alternating LEDs Flasher - Classic astable multivibrator using 2 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. __ Designed by Tony van Roon VA3AVR
Amplifier for a Xenon Lamp Flash Detector - This circuit has a very low standby current requirement yet has very high sensitivity toward the light flashes from a xenon lamp. When connected to a flip/flop it can serve as an on on/off Controller. . . Circuit by David A. Johnson P.E.-February, 2002
An Automotive Halogen Headlamp Power Supply - This circuit example demonstrates using a SEPIC-based automotive halogen headlight power supply that improves bulb reliability while also ensuring optimum illumination. The design maintains 12V at headlight voltage over a 9V to 15V input voltage range. It works well up to 1Ω interconnection resistance. The Virtual Remote Sense __ Linear Technology/Analog Devices App Note, Jul 7th 2010
An Experimental TRIAC Lamp Dimmer & Motor Speed Control using a Simulated DIA - C - DANGERThe diac is a common component used to trigger TRIACs. The construction of a diac is similar to that with a transistor, but with both junctions doped to similar levels so that the two junctions' revers break down characteristics are similar. This is a fun project to demonstrate the use of a pair of bipolar transistors operating in their negative resistance region to simulate a diac triggering a TRIAC in an incandescentlamp dimmer. The circuit is not optimized for performance -it is only intended to demonstrate the principle.
__ Designed by Dick Cappels
An improved offline driver lights an LED string - 01/25/13 EDN-Design Ideas A constant current is better than a constant voltage for driving LEDs. In this proposed circuit, a common constant-voltage regulator is changed into a constant-current source for LEDs. In addition, a startup current limiter is used to suppress large current surges, and a voltage chopper is employed for a wide ac input of 96 to 260 VRMS. Design by Yan-Niu Ren, Southwest Petroleum University, Chengdu, China
An LED Flasher with a SlowRise & Fall Time - Here is a Simple Circuit to give a Flashing LED, With a "Rising and Falling" Brightness. It Uses the Sawtooth waveform from pins 2 and 6 to create the rise and fall. The Resistor and LED on Pin 3 are Optional. The 10K Potentiometer give a reasonable range of Speed. __ Designed by G.L. Chemelec
An SCR Flipflop for Alternating Flashing Light Bulbs - Schematic only __ Designed by G.L. Chemelec |
