Patent ID: 9571926
Date: 2017-02-14
CPC Classifications: H04R

Claim:
1. A high-efficiency low-voltage-power-supply high-power-output audio driver architecture, comprising: a multi-coil loudspeaker having N coils; and a single-input N-output audio power amplifier configured to amplify a received digital audio signal and to output N switch signals for driving the multi-coil loudspeaker, wherein N represents the number of output channels which correspond to the N coils and is a positive integer greater than or equal to 2; wherein the single-input N-output audio power amplifier comprises an output power dynamic allocation unit configured to dynamically allocate power into more than two of the N output channels in a balanced way by means of dynamic power detection and intercross mapping, to make output powers of the more than two of the N output channels be equal; and wherein a driving signal of the single-input N-output audio power amplifier is fed back to the output power dynamic allocation unit, and the output power dynamic allocation unit allocates power in real time based on an operating condition of a current driver stage.