Patent ID: 9325535
Filing Date: 2016-04-26
CPC Classification: H03F,H04B,H04L

Claim Text:
1. A circuit assembly comprising: first and second signal processing circuits each including a biasing circuit and a fixed current source configured to provide a constant current to the biasing circuit, the first and second signal processing circuits each configured to receive a radio frequency (RF) input signal and to generate an output signal, an RF output signal of the circuit assembly including the output signal of the first signal processing circuit; first and second variable current sources respectively configured to provide additional current to the biasing circuits of the first and second signal processing circuits; a first switch in communication with the first and second signal processing circuits and configured such that the RF output signal of the circuit assembly further includes the output signal of the second signal processing circuit when the first switch is closed; and a second switch separate from the second variable current source, in communication with the second variable current source and with a peak detector that is configured to detect a plurality of thresholds in the RF output signal, to enable the first variable current source when a first threshold is detected, to close the first switch when a second threshold is detected, and to close the second switch when a third threshold is detected, thereby enabling the second variable current source.