METHOD FOR CONTROLLING THE PHASE CROSS OF A MULTI-CHANNEL CONTROL SYSTEM CAPABLE OF USING ALL CHANNELS FOR A MASTER CHANNEL

摘要

PURPOSE: A method for controlling the phase cross of a multi-channel control system is provided to prevent an active mode from being fixed by independently controlling the active mode according to an external sync clock by each pulse width modulation IC.;CONSTITUTION: The output pin of a PWM(Pulse Width Modulation) IC(Integrated Circuit) becomes preset in an off or a reboot mode(30). The PWM IC enters a phase-locked mode after rebooting completion(32). The PWM IC enters a master mode(36). A PWM signal is triggered with an internal clock. The PWM IC enters a slave mode. The PWM signal and a sync clock are synchronized in the slave mode. The PWM IC detects the sync clock in the phase-locked mode. The PWM signal is triggered using the sync clock by directly entering the slave mode.;COPYRIGHT KIPO 2012