초록 ▼

A clock control system for a multiple channel electric power system includes a master clock circuit and control circuitry in each parallel connected channel. The channel control circuits are intially phase-locked to a master clock signal. If the master clock signal is out of a preselected frequency

A clock control system for a multiple channel electric power system includes a master clock circuit and control circuitry in each parallel connected channel. The channel control circuits are intially phase-locked to a master clock signal. If the master clock signal is out of a preselected frequency range, the individual channel control circuits are decoupled from the master clock signal and one of those circuits produces a backup clock signal. The control circuits in the remaining channels are then phase-locked with the backup clock signal to provide continued parallel system operation.

대표청구항 ▼

A clock control system for an electric power system comprising: means for generating a master clock signal; means for generating a first signal for controlling a first channel of an electric power system, said first signal being initially phase locked to said master clock signal; means for generatin

A clock control system for an electric power system comprising: means for generating a master clock signal; means for generating a first signal for controlling a first channel of an electric power system, said first signal being initially phase locked to said master clock signal; means for generating a second signal for controlling a second channel of an electric power system, said second signal being initially phase locked to said master clock signal; means for monitoring the frequency of said master clock signal; means for decoupling said first and second signals from said master clock signal when said master clock signal is out of a preselected frequency range; means of operating the decoupled first signal at a preselected frequency to produce a backup clock signal; and means for phase locking the decoupled second signal to said backup clock signal.