×

SLIDING BIAS METHOD AND SYSTEM FOR REDUCING IDLING CURRENT WHILE MAINTAINING MAXIMUM UNDISTORTED OUTPUT CAPABILITY IN A SINGLE-ENDED PULSE MODULATED DRIVER

  • US 20150358743A1
  • Filed: 06/05/2015
  • Published: 12/10/2015
  • Est. Priority Date: 06/05/2014
  • Status: Active Grant
First Claim
Patent Images

1. A system configured to control idling current of a pulse modulated driver, the system comprising:

  • an audio input device configured to receive an audio input signal;

    sliding bias control circuitry configured to generate a sliding bias control signal based on a level of the audio input signal; and

    sliding bias generation circuitry configured to generate a sliding bias voltage superimposed onto the audio input signal to generate a pulse modulated driver input signal that is input into an amplifier, wherein the sliding bias voltage is based on the sliding bias control signal.

View all claims
  • 5 Assignments
Timeline View
Assignment View
    ×
    ×