Patent ID: 9722516
Date: 2017-08-01
CPC Classifications: G01R,H02P

Claim:
1. A bias circuit, comprising: a first signal generator having an input and an output; a second signal generator configured to generate a control signal, the second signal generator having a first input terminal, a second input terminal, and an output terminal, the first input terminal of the second signal generator coupled to the output of the first signal generator; a bias generator having an input terminal and an output terminal, the input terminal of the bias generator coupled to the output terminal of the second signal generator, wherein the bias generator comprises: an amplifier having a first input, a second input, and an output, the first input of the amplifier serving as the input of the bias generator, the output of the amplifier coupled to the second input of the amplifier; a switch having a control terminal, a first conduction terminal, and a second conduction terminal, the first conduction terminal serving as a second input of the bias generator and the first conduction terminal coupled to the second input of the amplifier, and the second conduction terminal of the switch serving as the output terminal of the bias generator.