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Lamp / Light Control Circuits   Page 2
Lamp Controls:   #'s    A     B-C      D     E-F      G-K     L      M-N      P-R     S    T-U     V-Z

Last Updated on: Friday, August 29, 2008 02:33 PM
 


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

A 3-Way Dimming CFL Ballast:  The 3 way dimming system widely adopted in  US with conventional filament lamps consists of a light bulb that has a modified Edison screw type base which allows 3 connections to be made to a special lamp socket that also has 3 connections.  (added 3/05)

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 3/05)

A Dual Alternating Flashing Light Circuit:  (electronic circuit added 4/05)

A Dual Tandem Flashing Light Circuit Powered by a 9 Volt Battery:  (electronic circuit added 4/05)

ABR-42022 / ML4833 220V Non-Dimming Ballast Design:  Fairchild Application Notes / (app note added 6/06)

Adjustable Strobe Light:  (circuit diagram added 1/07)

Adjustable Strobe Light:  120-Volt mains power source, up to20 Hz flash rate (added 4/02)

Advance Power System Experimenters Kit:  runs low voltage bulbs from mains using dimmer like method for reducing  voltage (added 4/02)

All Digital Circuit Fires TRIAC:  07)/21/94 EDN-Design Ideas / (added 4/02) This digital circuit allows a µP to control ac power precisely without using any digital-to-analog circuitry

AN1 8W Fluorescent Lamp Inverter: Compact DC-to-AC Inversion for Efficient Lighting Systems:  Zetec Semiconductors  Applications Notes An enhanced TO92 packaged one transistor design that uses a minimum of components, and yet achieves performance and efficiency normally associated with much larger packaged switching transistors. The design is optimised to provide a fast turn-off condition for  transistor, reby allowing  inclusion of  80V, 2A DC rated ZTX652 yielding efficient and reliable operation. Typical waveforms and full circuit details are provided.   (app note added 2/06)

AN17 Emergency Lighting Systems and Battery Powered Fluorescent Lighting: High Current TO92 Switching Transistors Provide 87% DC-AC Conversion Efficiency:  Zetec Semiconductors  Applications Notes An overview of  principles behind typical emergency lighting systems, fluorescent tube behaviour, and  requirements of  transistors for efficient voltage inversion. The note also includes two "Royer" based designs for low voltage systems.   (app note added 2/06)

AN-42001 / Low Cost Non-Dimming 220V Ballast Design:  Fairchild Application Notes / (app note added 6/06)

AN809: Digitally Addressable DALI Dimming Ballast App.:  Microchip Application Note Published 10-Apr-02   (app note added 2/06)

AN829: Lightkeeper Automotive Lighting Control Module:  Microchip Application Note Published 27-Mar-02   (app note added 2/06)

Analog Encoding:  This schematic is a example of a analog board with0 -10 volt output. (added 4/02)

AN-H33: HV8XX Series: EL Lamp Driver Circuits (Please Fill Out:  Supertex Semiconductors  (app note added 2/06)

AN-H34: HV823 and HV825 EL Lamp Driver Circuits :  Supertex Semiconductors  (app note added 2/06)

AN-H35: HV441: High Voltage Ring Generator:  Supertex Semiconductors  (app note added 2/06)

AN-H36: HV809 EL Lamp Driver for Battery Powered and Off-Line:  Supertex Semiconductors  (app note added 2/06)

AN-H38: HV826 EL Lamp Driver Circuits:  Supertex Semiconductors  (app note added 2/06)

AN-H43: HV857 EL Lamp Driver Circuits for Low Audible Noise Or:  Supertex Semiconductors  (app note added 2/06)

AN-H44: HV832 Dual EL Lamp Driver Circuits:  Supertex Semiconductors  (app note added 2/06)

AN-H45: HV833 EL Lamp Driver Circuits:  Supertex Semiconductors  (app note added 2/06)

AN-H46: HV831 Dual EL Lamp Driver Circuits:  Supertex Semiconductors  (app note added 2/06)

AT89C2051 Night light saver:  (schematic / circuit added 2/07)

Audio Light Modulator:  Audio light modulations add to  enjoyment of music during functions organised at home or outdoors. Presented here is one such simple circuit in which light is modulated using a small fraction of  audio output from  speaker terminals of  audio amplifier. The output from  speaker terminals of audio amplifier is connected to a transformer (output transformer used in transistor radios)....   (added 11/06)

Automated Crib Lights:  (circuit added 9/04)

Automatic 12 Volt Lamp Fader:  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 of different frequencies. The higher frequency ramp waveform (about 75 Hz.) is produced from one section of the LM324 quad op-amp wired as a Schmitt trigger....(added 05/07)

Automatic Control Starts Loads Softly:  10/13/94 EDN-Design Ideas / (added 3/03) Applying ac power to  circuit in Fig 1 causes it to gradually increase  power to  ac load, effecting a "soft start." The components connected to 555 timer IC1's pin 2 provide a trigger synchronized with  ac input's zero crossing. In conventional 555 fashion, R1, R2, and Cdetermine IC1's period. However,  RC delay network connected between IC1's pins 1 and 5 causes IC1's period to approach its full value only gradually, rar than instantly at power-on. Select a resistor-capacitor combination that suits your load....  

Automatic Headlight Brightness Switch:  (circuit added 7/02)

Automatic Night Lamp with Morning Alarm:  (electronic Circuit / Schematic added 10/04)

 

Lamp Controls:   #'s    A     B-C      D     E-F      G-K     L      M-N      P-R     S    T-U     V-Z



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