Light Dimmer Electronic Circuits, page 4

Light Dimmer Circuits, Page 4
Light Dimmer Circuits: # - C D - K L - R S - Z
Last Updated on: Monday, October 03, 2011 06:08 PM

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

Special Effects from a Six Pack - Four channel Sequencer to Analog Dimmers and idea how to couple relay to the circuit (added 4/02)

TB094: Dimming AC Incandescent Lamps using a PIC10F200 - Microchip Application Note Published 22-Nov-05 (app note added 2/06)

Touch Dimmer - (circuit / schematic design added 6/06)

TRIAC Light Dimmer - This little circuit can be used to dim lights up to about350-Watts. It uses a simple, standard TRIAC circuit that, in my experience, generates very little heat. Please note that this circuit cannot be used with fluorescent lights. (added 4/02)

Two 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 the instrument,..... [Design Idea by Kevan O'Meara, KO Systems, Chatsworth, CA]

Using a Light Dimmer IC for AC Motor Speed Control - This circuit example uses LS7231 Light Dimmer IC (added 6/06)

Varying Brightness AC Lamp - In this circuit, an SCR is used to slowly vary the intensity of a 120 volt light bulb by controlling the time that the AC line voltage is applied to the lamp during each half cycle. The circuit is directly connected to the AC power line and should be placed inside an enclosure that will prevent direct contact with any of the components. To avoid electrical shock, do not touch any part of the circuit while it is connected to the AC power line. A 2K, 10 watt power resistor is used to drop the line voltage down to 9 volts DC. This resistor will dissipate.... [Bill Bowden's web site]

White LED driver provides 64 step logarithmic dimming - 10-Jun-04 Issue of EDN The circuit of Figure 1 is designed for portable-power applications that require white LEDs with adjustable, logarithmic dimming levels. The circuit drives as many as four white LEDs from a 3.3V source and adjusts the total LED current from 1 to 106 mA in 64 steps of 1 dB each. The driver is a charge pump that mirrors the current ISET (sourced from IC3's SET terminal] to produce a current o..... [Design Idea by William Hadden, Maxim Integrated Products, Sunnyvale, CA]

White Light LED Driver with Gradual Dimming - TI Application Note (added 6/06)

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