Cold-Cathode Fluorescent-Lamp Supply

Posted on Mar 18, 2013

For back-lit LCD displays, this supply will drive a lamp. LT1072 drives Ql and Q2, and a sine wave app

Cold-Cathode Fluorescent-Lamp Supply
Click here to download the full size of the above Circuit.

ears across CI. LI is a transformer that steps up this voltage to about 1400 V. Dl and D2 detect lamp current and form a feedback loop to the LT1072 to control lamp brightness. C1 = MUST BE A LOW LOSS CAPACITOR. METALIZED POLYCARB WIMA FPK 2 (GERMAN) RECOMMENDED. L1 = SUMIDA 6345-020 OR COILTRONIX CTX110092-1. PIN NUMBERS SHOWN FOR COILTRONIX UNIT. L2 = COILTRONIX CTX300-4 * = 1 % FILM RESISTOR.

Leave Comment

characters left:

New Circuits



Popular Circuits

Sound effect generator
diy dye laser
emergency light circuit diagram
electronic circuit breaker
interfacing ultrasonic distance sensor ascii pic microcontroller
LM2917 frequency to voltage converter
Flashlight circuit diagram of a motor control model
Simplified circuit bass attenuation
High-quality preamplifier