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Light Dimmer Circuits, Page 1
Light Dimmer Circuits:  # - C     D - K     L - R     S - Z

Last Updated on: Friday, March 12, 2010 12:07 PM


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

µC Implements Pushbutton Light Dimmers - 06/18/98 EDN-Design Ideas: A project required building a synchronous-demodulator circuit to track a line drawn on paper.  beauty of  synchronous-modulator/demodulator approach is its inherent noise rejection.  method rejects ….....(design idea added 08/05)

1.5 Hour Lamp Fader (Sunset Lamp) - the sunset lamp comes on at full brightness and then slowly fades out over 1.5 hours time and stays off until power is recycled. (design added 5/09)

122 VAC Lamp Dimmer (full wave SCR) - The full wave phase control circuit below was found in a RCA power circuits book from 1969. The load is placed in series with the AC line and the four diodes provide a full wave rectified voltage to the anode of a SCR. Two small...(electronic circuit added 10/05)

125 Volt AC Lamp Dimmer Full Wave SCR - (circuit added 7/02)

12V high side PWM Motor/Light Controller - scroll down (circuit 6/07)

14 Volt Lamp Dimmer (using a pot) - Here is a 12 volt / 2 amp lamp dimmer that can be used to dim a standard 25 watt automobile brake or backup bulb by controlling the duty cycle of a astable 555 timer oscillator. When the wiper of the potentiometer is at the uppermost position, the capacitor will charge quickly through both 1K resistor....(added 4/02)

14 Volt Lamp Fader (LEDs or incandescent) - This circuit is similar to the "Fading Red Eyes" circuit (in the LED section) used to fade a pair of red LEDs. In this version, the lamps are faded by varying the duty cycle so that higher power incandescent lamps can be used without much power loss. The switching waveform is generated by comparing two linear ramps....(electronic schematic / circuit added 05/09)

2 Wire DC Lamp Dimmer replaces Rheostats - 10/23/97 EDN-Design Ideas: Originally for use in commercial trucks, a low-cost dc lamp dimmer (Figure 1)can control more than 100W of incandescent panel lighting and replaces a high-power rheostat, whose heating darkens  instrument panel.....(design idea added 08/05)

230 Volt Dimmer - A reliable and efficient all-around performer. I bought  kit because it didn't cost me much more than  components were worth and I also got a nice professional-made PCB inside. As you can see, this is a tried-and-true diac & triac combination that offers both simplicity and high performance. With a load up to 3.5A,  power rating is 750W at 230V. A heat sink on  triac is a must! ....(added 11/05)

25-Pin PC Serial Port to MIDI Synthesizer Interface Cable - (circuit / schematic design added 6/06)

4 Channel dimmer rack - (electronic circuit added 4/05)

8 Bit Digital Light Intensity Controller - (design circuit added 8/02)

A Ballast that can Be Dimmed from a Domestic Phase Cut Dimmer. - A system has now been developed, based around  IR2156, where  ballast is able to operate with minimal flicker over a considerable portion of  adjustment range of a dimmer and  light output may be controlled over this range from maximum output down to around 10%.  (added 6/06)

ABR-42021/ Control Interface for Standard 0-10VDC Dimmers - Fairchild Application Notes / (app note added 6/06)

Addressable DALI Dimming Ballast - (circuit / schematic design added 6/06)

AN809: Digitally Addressable DALI Dimming Ballast App. - Microchip Application Note Published 10-Apr-02  (app note added 6/06)

Ballast that can Be Dimmed from a Domestic Phase Cut Dimmer. - A system has now been developed, based around  IR2156, where  ballast is able to operate with minimal flicker over a considerable portion of  adjustment range of a dimmer and  light output may be controlled over this range from maximum output down to around 10%.  (added 6/06)

Basic Circuit optimizes PhotoTransistor Bandwidth  - 04/09/98 EDN-Design Ideas: (design idea added 3/03)

Control Interface for Standard 0-10VDC Dimmers/ ABR-42021 - Fairchild Application Notes / (app note added 6/06)


 
Light Dimmer Circuits:  # - C     D - K     L - R     S - Z
 
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