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Light Dimmers

�C implements Pushbutton Light Dimmers: 06/18/98 EDN-Design Ideas

12 Volt Lamp Dimmer: dimming d1-by controlling the duty cycle of a astable555 Timer oscillator

120 Volt AC Lamp Dimmer (full Wave SCR) :

2 Wire DC Lamp Dimmer Replaces Rheostats: 10/23/97 EDN-Design Ideas / Low-cost DC lamp dimmer that can control more than100W of incandescent panel lighting from12V DC, originally designed for use in commercial trucks

8 Bit Digital Light Intensity Controller :

Basic Incandescent Light Dimmer Circuits :

Circuit optimizes Phototransistor Bandwidth : 04/09/98 EDN-Design Ideas

Dimmer Circuit for Normal Light Bulbs :

Dimmer Switch : This dimmer switch is suitable for230-Volt incandescent lamps with a total power of up to300-Watts. The circuit is wired in series with the lamp so it can directly replace the wall switch.

Dimmer/ Motor Speed Control:

Dome Lamp Dimmer: Efficiently dim the cars dome or map light (low voltage light), PDF file

Dome Light Dimmer for Cars : Usually when the car door is closed, the dome light just goes OFF. With this circuit, you can have our dome light fade slowly in brightness and finally go OFF.

Dome Light Dimmer using Mic4680 Switching Regulator: simple circuit which outputs +5-Volt

Dome Light Dwell Extender / Dimmer : allows you to dim your dome light and keeps the dome light of your automobile on after you close the door

Electric Power Controller: suitable as dimmer for100-Volt lamp up to1200W

Electronic Transformer Dims halogen Lamp: 05/11/00 EDN-Design Ideas /  (several circuits in PDF) Switched-mode power supply for a halogen lamp, commonly known as an electronic transformer, is a clever and simple device which can be enhanced with dimming control

Experimental Cross Fader: ideas to modify simple rotary light dimmers to make a cross-fader

Halogen Light Dimmer Provides infinite Control: 03/16/00 EDN-Design Ideas / PDF contains multiple circuits - scroll to find the one of interest / Dimmer works to inject a constant current into the halogen lamp and to regulate that current using pulse-width modulation (PWM) / PDF contains multiple circuits - scroll to find the one of interest according to a potentiometer-controlled input, or a0 to5V signal

High Efficiency Halogen Bike Light Dimmer: This circuit uses a PIC16F84 microcontroller with some software to control20-Watt12V DC halogen lamp

Lamp Dimmer #1:

Lantern Flasher/Dimmer:

Light Dimmer #1: dims220-Volt light

Light Dimmer Circuit With 0 to 10 Volt Input: This is a simple dimmer circuit that can be controlled with0 -10 VDC. It is designed for110-Volt AC.

Low Voltage Light Dimmer: A light dimmer is a means of controlling the "brightness" level of a lamp, in this application we will use a555 Timer to control the brightness level of a low voltage incandescent bulb of up to 60-Watts. For the light dimmer to work the555 Timer is configured as a "variable cycle", astable oscillator running some where around300 Hz.

Microcontroller MultiChannel Light Dimmer: The project is a microprocessor-controlled multiple channel lighting dimmer, that could be used in theatrical and other applications. The device will accept input from a wide range of interfaces: RS232 input, DMX512 (theatrical lighting standard) or RS485, or a Musical Instrument Digital Interface (MIDI). The device will control a number of lamps by using some form of AC power control. The firmware in the microcontroller will handle all functions, from decoding the protocol on either of the input interfaces through to Timing the firing of power triacs for the output.

Neon Dimmer: idea how to dim neon lights

PICDIM Application Note: This is a lamp dimmer design based on PIC12C508 microcontroller.

PWM Motor / Light Controller Variations: diagrams are for12V operation and there are high side (common ground) and low side (common +12V) versions

Smart 12 Volt Light Dimmer: This automatic dimmer will control up to50-Watts worth of halogen lamps in order to maintain a consistent light level in a room. Document is in PDF format.

Special Effects From a "Six Pack": Four channel Sequencer to Analog Dimmers and idea how to couple relay to the circuit

ST6 Microcontroller & TrIACs on Mains: includes dimmer circuit example

TRIAC Light Dimmer #2:

TRIAC Light Dimmer #3:

TRIAC Light Dimmer: dim115-Volt lights up to about350-Watt

Two Wire DC Lamp Dimmer Replaces Rheostats: 10/23/97 EDN-Design Ideas /  Low-cost DC lamp dimmer that can control more than100W of incandescent panel lighting from12V DC, originally designed for use in commercial trucks

Varying Brightness AC Lamp: SCR is used to slowly vary the intensity of a120 volt light bulb by controlling the Time that the AC line voltage is applied to the lamp during each half cycle

Velleman K8003 DC Controlled Dimmer Kit: This is a0-10-Volt DC controlled dimmer module. Putting many this kind of modules inside on case makes a multi channel light dimmer. This circuit works from220V,110-Volt and24V. The Maximum current this circuit can control is3.5A.

 




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