Patent ID: 7843242

Claim:
In a pulse width modulation (PWM) signal generator that receives an input PWM signal and outputs a plurality of output PWM signals in parallel, each output PWM signal phase-shifted in relation to the other output PWM signals, a method comprising: sampling, at the PWM signal generator, a first PWM cycle of the input PWM signal based on a periodic signal to generate PWM parameters representative of a duration of an active portion of the first PWM cycle and a total duration of the first PWM cycle; initiating a first count of a first counter of the PWM signal generator responsive to a start of a second PWM cycle of the input PWM signal, the second PWM cycle following the first PWM cycle; timing, at the PWM signal generator, a generation of a first set of PWM cycles for the plurality of output PWM signals based on the PWM parameters and the first count; initiating a second count of a second counter of the PWM signal generator responsive to a start of a third PWM cycle of the input PWM signal, the third cycle following the second PWM cycle; and timing, at the PWM signal generator, a generation of a second set of PWM cycles for the plurality of output PWM signals based on the second count.