Patent ID: 9385670
Filing Date: 2016-07-05
CPC Classification: H03F,H04R

Claim Text:
1. An amplifier comprising: a first bridge amplifier section having two differential amplifiers with a first load connected between their outputs; a second bridge amplifier section having two differential amplifiers with a second load connected between their outputs; a mode switch between a first output of one differential amplifier of the first bridge amplifier section and a second output of one differential amplifier of the second bridge amplifier section; a control circuit, coupled to the mode switch, and configured to control the mode switch based on a set of input signals to the first and second bridge amplifier sections; a clip detection circuit configured to detect clipping in the first or second outputs; and a delay circuit, coupled to the clip detection circuit and the control circuit, and configured to provide a delay period in response to the detected clipping, wherein the control circuit is configured to inhibit closing of the mode switch during the delay period.