MULTI-CHANNEL DIGITAL PWM SIGNAL GENERATION CIRCUIT FOR DRIVING SCAN LINES BY PWM METHOD

摘要

PURPOSE: A multi-channel digital PWM signal generation circuit for driving scan lines by a PWM method is provided to simplify a structure of a circuit for performing same function by installing a programmable counter at each PWM generator. CONSTITUTION: A multi-channel digital PWM signal generation circuit includes a plurality of timing control signal generators for generating multi-channel digital PWM signals of m number, a counter(120) having an area of n-bit, and PWM signal generators(130) of m number. The multi-channel digital PWM signal generation circuit receives input signals such as input data signals of n-bit area, data shift signals, latch enable signals, and clock signals. The multi-channel digital PWM signal generation circuit generates output signals such as PWM output signals and output data signals.