Light Dimmers Circuits


Posted on Feb 5, 2014

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. 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 a


Light Dimmers Circuits
Click here to download the full size of the above Circuit.

s an electronic transformer, is a clever and simple device which can be enhanced with dimming control 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 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 Multi Channel 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...




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