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Search results: 145   Output: 71-80
  1. The drawing process is really quite simple. The pic microcontroller puts 00000000 00000000 on the eeproms address bus (selects the first address) This byte of info (at that address) is now placed on the data bus and all RED GREEN AND BLUE ...
    11-11-2009
  2. Brads electronic projects This was my first attempt at a nice and colourful RGB LED POV Display. POV stands for persistence of vision. The circuit uses just 8 RGB leds which are mounted vertically and when spun horizontally it gives the illusion of ...
    10-11-2009
  3. By simply touching this touch dimmer switch you can increase the light intensity of incandescent lamps in three steps. Initially, when mains switch is on, the bulb is off. Now, if you touch the touch plate, the bulb glows dimly. On second touch, ...
    Circuits » Light » Tontek » TT6061A, TT8486A
    21-10-2009
  4. Features Drive 13W Compact Lamp 110 or 220 Vac Input High-Frequency Operation (34kHz) Soft Start with Cathode Preheating (45kHz) Lamp Removal Protection Burst Mode with Auto Restart IR53H420 Integrated Half-Bridge This application note is intended ...
    02-10-2009
  5. Failures Common failure is broken capacitor C3. It is possible mainly at cheap lamps, where are used cheaper components for lower voltage. Whet the pipe doesn't lights up on time, there are risk of destroying transistors Q1 and Q2 and next ...
    26-08-2009
  6. Introduction Compact fluorescent lamps have some benefits in comparison with classic light bulbs. It is lower power consumption (to 80%) and much longer lifetime (5 to 15 times). Disadvantages are longer starts mainly at more expensive types, ...
    25-08-2009
  7. Paul Hill The circuit is drawn with PCB 123 which you can download for free from http://www.pcb123.com Click for enlarge As a keen cyclist I am always looking for ways to be seen at night. I wanted something that was a novelty and would catch the ...
    18-08-2009
  8. Constant current circuitry 12V Battery operation Circuit diagram: Parts: R1 10K 1/4W Resistor R2 33R 1/4W Resistor (See Notes) R3 15R 1/4W Resistor (See Notes) D1 1N5819 40V 1A Schottky-barrier Diode (See Notes) D2--D13 LEDs High brightness, high ...
    05-08-2009
  9. Bar-mode LED-cluster sequencer Can drive up to 16 clusters Circuit diagram: Parts: R1,R5 1K 1/4W Resistors R2 33K 1/4W Resistor R3 100K 1/2W Trimmer Cermet R4 1M 1/4W Resistor R6,R7,R8 10K 1/4W Resistors R9 4K7 1/4W Resistor R10 33R 1/4W Resistor ...
    29-07-2009
  10. Ultra-low current drawing 1.5V battery supply Circuit diagram: Parts: R1, R2 1M 1/4W Resistors R3 47K 1/4W Resistor (optional: see Notes) R4 Photo resistor (any type, optional: see Notes) C1 100nF 63V Polyester Capacitor C2 220µF 25V ...
    21-07-2009
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