Patent ID: 9300261
Filing Date: 2016-03-29
CPC Classification: H03F,H04R

Claim Text:
1. A circuit for driving a plurality of loads, said circuit comprising: a first signal amplifier operable to supply a first content signal to a first terminal of a first load of said plurality of loads; a second signal amplifier operable to supply a second content signal to a second terminal of a second load of said plurality of loads, wherein said first and second signal amplifiers are configured to operate using a first voltage difference provided by a first power supply; and a bias amplifier operable to bias a third terminal of said first load and a fourth terminal of said second load with a bias signal of a bias voltage level, wherein said bias amplifier is configured to bias using a second voltage difference provided by a second power supply that is less than said first voltage difference, wherein said second voltage difference is close to said bias voltage level, wherein said second power supply includes at least one grounded terminal.