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Lamp / Light Control Circuits Page 7a
Lamp Controls: #-A B-D
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Last Updated on:
Friday, August 29, 2008 02:34 PM |
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| Links to electronic circuits, electronic schematics, designs for engineers,
hobbyists, students & inventors: |
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Light a White LED from Half a Cell: 06/12/03 EDN Design Ideas / (added 1/05) Whether you use them as indicators or
to provide illumination, LEDs are hard to beat in efficiency, reliability, and cost. White LEDs are rapidly gaining popularity as sources of illumination, as in LCD backlights, but with forward
voltages typically ranging from 3 to 5V, operating them from a single cell presents obvious difficulties.... |
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Light Bulb Voltage Regulator : (circuit added 7/02) |
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Light Chaser: (electronic circuit added 7/03) |
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Light Controlled Switch #2: output a control signal suitable for relay depending on the light level (added 4/02) |
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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. (added 4/02) |
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Light Organ for Car: flashes3 low voltage lights, operates at10-25-Volt voltage, in PDF format, text in Finnish (added 4/02) |
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Light Processor 434 Piano Touch Panel: circuit diagram in PDF format, check also power supply circuit diagram (added 4/02) |
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Light/Dark Detector: (electronic circuit added 7/03) |
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Lighting System: how to inexpensive, portable lighting system that add a great deal of ambiance to the music performance,
includes simple controller circuit (added 4/02) |
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Lightkeeper Automotive Lighting Control Module: Microchip Application Note Published 27-Mar-02 (app note added
2/06) |
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Linear Constant Current LED Lamp Dimmer: This circuits drives24 white light LEDs with an adjustable constant current. (added
4/02) |
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Low Cost Converter Drives Fluorescent Tubes: 03/31/94 EDN-Design Ideas / (added 03/03) In the last few months, several
designers have published circuits for cold-cathode fluorescent-tube (CCFT) power supplies, and a specialized power-supply IC is also now available. However, a significant number of CCFT
applications don't require the complexity and expense of a dual-FET resonant approach. Applications such as electronic night-lights, backlights for industrial equipment, such as gas pumps or
signs, simply can't justify the cost of building a resonant supply. The low-cost circuit in Fig 1 produces a small, very reliable drive for many of the smaller CCFT tubes.... |
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Low Cost Non-Dimming 220V Ballast Design / AN-42001: Fairchild Application Notes / (app note added 6/06) |
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Low loss circuit Powers solar lantern: 04/01/04 EDN Design Ideas / (added 1/05) The solar-lantern circuit in
Figure 1 is a low-loss configuration that uses a 7W, four-pin CFL (compact fluorescent lamp) and a 12V, 7-Ahr, sealed, maintenance-free battery. The inverter features greater-than-85% efficiency,
less-than-2-mA quiescent current, and a shunt-charge controller with deep-discharge and overcharge protection for the battery.... |
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Low Power Crossing Light Flashers (LM556) (E+F): (circuit / schematic design added 6/06) |
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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. (added 7/03) |
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Lx 800 Lighting System: (electronic circuit added 7/03) |
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