Patent ID: 6473009
Filing Date: 2002-10-29
Classification: G06F,H03F,H03K,H03M

Abstract:
A PWM power amplifier, comprising: at least one PCM/PWM converter which is fed by PCM digital input signals and produces PWM digital output signals, and at least one final stage of power amplification of the PWM digital signals in output from said at least one PCM/PWM converter, said at least one PCM/PWM converter comprising a counter fed with at least one clock signal produced by a clock generator device and comprising a digital comparator suitable for comparing said PCM digital input signals of said at least one PCM/PWM converter with a digital comparison signal produced by said counter and producing in output said PWM digital signals, said clock generator device comprising a pulse generator device and an oscillator, said pulse generator device receiving a signal at a frequency equal to the frequency of said PCM digital input signals of said at least one PCM/PWM converter and producing in output reset pulses, said reset pulses being sent in input to said oscillator producing in output said at least one clock signal.