Patent ID: 7312654

Claim:
A switching amplifier having a plurality of outputs, comprising: a pulse width modulation adjuster operative to provide adjusted pulse width modulated signals and a synchronization signal based on pulse width modulated signals supplied thereto; a driver connected with the pulse width modulation adjuster, the driver operative to receive the adjusted pulse width modulated signals and the synchronization signal and supply switch signals in response thereto; a plurality of high impedance and low impedance switches connected with the driver such that control terminals of the high impedance switches of each output are connected to a different output of the driver than the low impedance switches of the output, the high impedance and low impedance switches of each output operative to receive the switch signals and supply an output signal to the output; and a feedback circuit connected with each output and with the pulse width modulation adjuster, the feedback circuit operative to receive the output signals and to supply a correction vector to the pulse width modulation adjuster to adjust widths of the adjusted pulse width modulated signals in response to the received output signals.