HIGH PERFORMANCE SWITCHING AMPLIFIER, IN PARTICULAR FOR AUDITIVE PROSTHESIS, AND METHOD FOR TREATING ACOUSTIC WAVEFORM USING SUCH AMPLIFIER

摘要

According to the invention, this switching amplifier comprises: a first generator means 20 for producing a first pulse sequence S1 having modulated pulse widths in response to the applied input signal; second generating means 22 for producing a second pulse sequence S2 having modulated pulse widths in response to an inverted representation of the applied input signal; and a combiner means 36, 40 for combining said first and said second pulse sequence. It is possible in particular to deliver to a load L an amplified representation of the input signal applied to it. A means 14, 16 is then provided for producing a predetermined waveform with a chosen frequency, the generator means 20, 22 then modulate this waveform with the respective phase shift, and the combiner means 36, 40 comprises an output stage at switching, connected to these modulator stages, to deliver to the load an amplified representation of the input signal. / P