Patent ID: 8723605
Filing Date: 2014-05-13
Classification: H03F

Abstract:
1. A dynamic amplification system for a plurality of amplifiers, comprising: a first amplifier coupled to a first input signal for amplification and operative to generate a first output signal; a second amplifier coupled to a second input signal for amplification and operative to generate a second output signal; a first power boost amplifier electrically connected to a first power supply rail, said first power supply rail providing power at a first nominal voltage level to the first and second amplifiers; a second power boost amplifier electrically connected to a second power supply rail, said second power supply rail providing power at a second nominal voltage level to the first and second amplifiers; a power boost control circuit; a first gain stage operative to generate a modified version of the first input signal and provide the modified version to the power boost control circuit; and a second gain stage operative to generate a modified version of the second input signal and provide the modified version to the power boost control circuit; wherein said power boost control circuit is operative to provide power boost control signals to said first power boost amplifier and said second power boost amplifier, whereby said first power boost amplifier temporarily boosts the first power supply rail above the first nominal voltage level in tandem with the highest output signal level from said first and second amplifiers as indicated by said modified versions of said first and second input signals, and whereby the second power boost amplifier temporarily lowers the second power supply rail below the second nominal voltage level in tandem with the lowest output signal level from said first and second amplifiers as indicated by said modified versions of said first and second input signals.