Patent ID: 7863956

Claim:
A pulse modulator for generating selected pulses of controllable widths, comprising: a circuit arrangement configured to generate at least two pulse signals based on a reference pulse signal, wherein the circuit arrangement includes at least one pulse-width modulator (PWM); at least one delay device configured to temporally displace the at least two pulse signals with respect to each other by a portion of a period of a pulse signal; a combiner configured to combine the at least two pulse signals and generate an output pulse signal of the pulse modulator; and a pulse selection network configured to select a set of pulses in the output pulse signal, the pulse selection network being configured to receive a pulse modulator input signal and the set of pulses being selected by selectively communicating the pulse modulator input signal to the circuit arrangement; wherein the widths of the pulses in the selected set are varied in accordance with the pulse modulator input signal.