Patent ID: 8542847

Claim:
A sound reproducing assembly, comprising: a digital audio signal generator; a pulse-width modulation (PWM) or pulse-density modulation (PDM) modulator operatively coupled to the digital audio signal generator and adapted to provide modulated digital signals; a driver circuit having a control circuit operatively coupled for receipt of the modulated digital signals, the driver circuit including: a first driver including an upper leg coupled between a first power supply voltage and a first driver output and a lower leg coupled between the first driver output and a second power supply voltage, the upper leg including a first set of parellelly coupled semiconductor switches controlled by respective control signals of a first set of control signals, the lower leg including a second set of parellelly coupled semiconductor switches controlled by respective control signals of a second set of control signals, the control circuit being configured to generate the first and second sets of control signals for the first and second sets of parellelly coupled semiconductor switches, respectively, to create a current path through the upper and lower legs during an overlap time period between state transitions of the first driver output; and an electroacoustical loudspeaker electrically coupled to the first driver output and one of the first and second power supply voltages, or electrically coupled in-between the first driver output and the second driver output.