Patent ID: 9484860
Filing Date: 2016-11-01
CPC Classification: H03F

Claim Text:
1. A tracking power supply for an amplification system, comprising: a first power boost circuit receiving, as an input, a first signal indicative of an output voltage of an amplifier, said amplifier receiving a first power supply input voltage signal either from a power supply rail when the amplifier output voltage is below a first threshold or from the first power boost circuit when the amplifier output voltage is above the first threshold; and a second power boost circuit receiving, as an input, a second signal indicative of the output voltage of said amplifier, wherein said first power boost circuit receives a second power supply input voltage signal from either the power supply rail, or from the second power boost circuit when the amplifier output voltage is above a second threshold, said second threshold being greater in absolute value than said first threshold, said first power boost circuit provides an output voltage that is greater than an input voltage of said first power boost circuit.