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Digital Dimming DALI Ballast for 32w/T8 110V Input - This
reference design is a high efficiency, high power factor, digital
dimming electronic ballast designed to drive rapid start fluorescent
lamp types.... (added 6/06) |
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Digital Dimming DALI Ballast for 36w/T8 220V Input - This
reference design is a high efficiency, high power factor, digital
dimming electronic ballast designed to drive rapid start fluorescent
lamp types. The design contains an active power factor correction
circuit for universal voltage input as well as a ballast control
circuit using the IR21592. The design also includes a PIC16F628
microcontroller and an isolation circuit for connecting to a
Digitally Addressable Lighting Interface (DALI). (added 6/06)
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Digitally Addressable DALI Dimming Ballast - A digitally
addressable digital dimming ballast has been developed. It conforms
to DALI standard requiring very few parts and operates at very low
power. Applications include building management or studio lighting
where it is .... |
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Digitally Addressable DALI Dimming Ballast App. - Microchip
Application Note Published 10-Apr-02 (app note added 2/06) |
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Digitally control room light intensity - 11-Nov-04 Issue of EDN
Many people favor different light and temperature settings for different rooms
depending upon their mood or whether they are working or relaxing. The circuit
in Figure 1 controls the intensity of the artificial light in a room and
monitors the temperature of two zones. The two main circuit blocks are the
PIC16C67 master controller and the ADT7516 temperature-sensor interface, which
includes a..... [Design Idea by Donal McNamara and Kieran Kelly, Analog Devices,
Limerick, Ireland] |
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Dimmer Circuit for Normal Light Bulbs - (electronic design added 9/02)
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Dimmer Switch - This dimmer switch is suitable for230-Volt
incandescent lamps with a total power of up to300-Watts. The circuit is wired in
series with the lamp so it can directly replace the wall switch. (added 4/02)
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Dimmer/Motor Speed Control - Lamp dimmers using traics can be quite
simple, nothing more than a potentiometer, resistor, capacitor and triac
with a built-in diac. (See Teccor's application note for examples and other
technical data.) The circuit below is similar.....(electronic circuit added
7/03) |
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Dimming AC Incandescent Lamps using a PIC10F200 - Microchip
Application Note Published 22-Nov-05 (app note added 2/06) |
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Dimming DALI Ballast for 32w/T8 110V Input - This reference design is
a high efficiency, high power factor, digital dimming electronic ballast
designed to drive rapid start fluorescent lamp types. The design contains an
active power factor correction circuit for universal voltage input as well as a
ballast control circuit using the IR21592. The design also includes a PIC16F628
microcontroller and an isolation circuit for connecting to a Digitally
Addressable Lighting Interface (DALI). (added 6/06) |
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Dimming DALI Ballast for 36w/T8 220V Input - This reference design is
a high efficiency, high power factor, digital dimming electronic ballast
designed to drive rapid start fluorescent lamp types. The design contains an
active power factor correction circuit for universal voltage input as well as a
ballast control circuit using the IR21592. The design also includes a PIC16F628
microcontroller and an isolation circuit for connecting to a Digitally
Addressable Lighting Interface (DALI). (added 6/06) |
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Dome Lamp Dimmer - This unique circuit makes your dome light look
cool. Usually when the car door is closed, the dome light just goes OFF. With
this circuit, you can have our dome light fade slowly….(electronic circuit added
7/03) |
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Dome light dimmer (with delay) - For all you guys out there that want
a fading dome light (aka courtesy light aka theatre lighting) without having to
pay for one, you can build your own. I have attached the schematics and you can
build it for a few bucks given that you don't have any spare components lying
around otherwise it can cost you absolutely nothing. Of course you can rip some
parts from your TV, CD player, radio, etc., but I'm not responsible for the
damage you cause this way [b:e43bc460fa]The way it works[/b:e43bc460fa] I won't
bother you with technical.... |
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Electric Power Controller - suitable as dimmer for 100-Volt lamp up
to1200W (app note added 4/02) |
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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 as an electronic transformer, is a clever and simple device
which can be enhanced with dimming control..... EDN is migrating links. This
link is not verified. Google the "title" EDN for new link. |
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Experimental Cross Fader - ideas to modify simple rotary light dimmers
to make a cross-fader (added 4/02) |
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Four Channel Dimmer Rack - (circuit / schematic design added 6/06)
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Halogen Light Dimmer Provides Infinite Control - 03/16/00 EDN-Design
Ideas.....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..... EDN is migrating links. This link is not verified.
Google the "title" EDN for new link. |
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High Efficiency Halogen Bike Light Dimmer - This circuit uses a
PIC16F84 microcontroller with some software to control20-Watt12V DC halogen
lamp..... |
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High Power Desktop LCD Backlight Controller Supports Wide Dimming Ratios While
Maximizing Lamp Lifetime - DN264 Design Notes (Linear
Technology) (app note added 6/06) |
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High side PWM Motor/Light Controller - These two schematics are
variations on another PWM circuit that I designed. The diagrams are for 12V
operation only and there are high side (common ground) and low side (common
+12V) versions. The low side version of the circuit uses an N Channel FET, the
high side version of the circuit uses a P Channel FET. N Channel devices tend to
handle more current than P Channel devices, they are also less expensive. The
high side version of the circuit is useful when one side of the load has to be
grounded..... [Circuit Designed by G. Forrest Cook] |
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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
6/06) |
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IR21592 Dimming Ballast Control IC Design Kit - The IRPLDIM1E 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. (added 6/06) |
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