|
Lamp / Light Control Circuits Page 6
Lamp Controls: #'s A
B-C D E-F
G-K L M-N
P-R S T-U V-Z
Last Updated on:
Monday, August 18, 2008 04:18 PM
| Circuits Designed by Dave Johnson, P.E. : |
- Incandescent Lamp Inrush Current Limiter
This circuit limits the large inrush current often associated with large incandescent lamps. With the components shown the current is limited to 1 amp, but it could be scaled to any
desired current. (added 7/06)
|
|
|
| Links to electronic circuits, electronic schematics, designs for engineers,
hobbyists, students & inventors: |
|
Game Show Who's First Indicator Lights: (circuit / schematic design added 6/06) |
|
Garden Light Switch: (electronic circuit added 7/03) |
|
Grand Cherokee Off Highway Lights: (circuit / schematic design added 6/06) |
|
Hacking the Kodak Max Single Flash Camera into a Self Repeating Strobe: this approach is recommended mainly for homebrewing a
strobe that is powered by a single1.5 volt battery. If you can use a higher supply voltage, there are better ways to do this. (added 4/02) |
|
Half Bridge Inverter has Variable Frequency: 10/09/97 EDN-Design Ideas / (added 2/2003) Modern electronic ballasts
require added features, such as high-frequency preheat for filaments, nominal lamp-power control, and light-dimming capability. Because the output inverter operates in resonant mode, you can
control the power or current of these ballasts simply by varying the switching frequency. To vary the frequency, you can build a simple VCO that uses a half-bridge MOSFET driver (Figure 1). You
can use this VCO as the core of a controller for a supply or ballast that requires a variable frequency.... |
|
Halogen Light Dimmer Provides Infinite Control: 03/16/00 EDN-Design Ideas / (added 1/06) Modern lighting systems use halogen
lamps, most of which run on 12V ac from a transformer. The dimmer circuit in Figure 1 can change the intensity of the light from zero to maximum. The dimmer operates at approximately 12V, unlike
the usual ones that function by adjusting the firing angle of the 110 or 220V mains supply.... |
|
Hand Clap Lamp Control : What a way to drive a triac. This is the improved/redesigned version. (added 2/05) |
|
High Current Crossing Light Flasher (LM556): (circuit / schematic design added 6/06) |
|
High Efficiency Halogen Bike Light Dimmer: This circuit uses a PIC16F84 microcontroller with some software to control20-Watt12V
DC halogen lamp (added 4/02) |
|
High Voltage Ring Generator: Supertex Semiconductors (app note added 2/06) |
|
Highway Alert Signal Lamp: (circuit / schematic design added 6/06) |
|
How to Make Chase Lights: This example shows3 track chase lights built from3-Christmas light sets and1-light chaser controller
(added 6/06) |
|
HV809 EL Lamp Driver for Battery Powered and Off-Line: Supertex Semiconductors (app note added 2/06) |
|
HV823 and HV825 EL Lamp Driver Circuits : Supertex Semiconductors (app note added 2/06) |
|
HV826 EL Lamp Driver Circuits: Supertex Semiconductors (app note added 2/06) |
|
HV831 Dual EL Lamp Driver Circuits: Supertex Semiconductors (app note added 2/06) |
|
HV832 Dual EL Lamp Driver Circuits: Supertex Semiconductors (app note added 2/06) |
|
HV833 EL Lamp Driver Circuits: Supertex Semiconductors (app note added 2/06) |
|
HV857 EL Lamp Driver Circuits for Low Audible Noise : Supertex Semiconductors (app note added 2/06) |
|
HV8XX Series: Supertex Semiconductors (app note added 2/06) |
|
IC Controlled Emergency Light with Charger: (electronic Circuit / Schematic added 10/04) |
|
Idea for a 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 4/02) |
|
IR21571 Ballast Control IC Design Kit: The IRPLLNR2 is a high efficiency, high power factor, fixed output electronic ballast
designed for driving rapid start fluorescent lamp types. The design contains an EMI filter, active power factor correction and a ballast control circuit using the IR21571. This demo board is
intended to ease the evaluation of the IR21571 Ballast Control IC, demonstrate PCB layout techniques and serve as an aid in the development of production ballast’s using the International
Rectifier IR21571. (added 3/05) |
|
IR21592 Dimming Ballast Control IC Design Kit: The IRPLDIM1U is a high efficiency, high power factor, dimming electronic
ballast designed for driving rapid start fluorescent lamp types. The design contains an EMI filter, active power factor correction and a ballast control circuit using the IR21592. This demo board
is intended to ease the evaluation of the IR21592 Dimming Ballast Control IC,demonstrate PCB layout techniques and serve as an aid in the development of production ballast’s using the IR21592.
(added 3/05) |
|
IRPLMB1E: 25W 230VAC Small Size Ballast using IR2520D: The circuit is built around the IR2520D Ballast Control IC. The IR2520D
provides adjustable preheat time, adjustable run frequency to set the lamp power, high starting frequency for soft start and to avoid lamp flash, fault protection for open filament condition and
failure to strike, low AC line protection and auto-restart after line brownout conditions. line brownout conditions. (added 3/05) |
|
Japanesque Ceiling Light: This is a Japanesque ceiling light without any electronics. Everybody will able to build easy even if
they have no electronic skill. (added 10/05) |
| |
|
Lamp Controls: #'s A
B-C D E-F
G-K L M-N
P-R S T-U V-Z |
