Amplifying circuit

摘要

A circuit includes a first circuit module with a first input node, a second input node and an output node. The first circuit module receives an input signal at the first input node and generates an amplified signal at the output node. The circuit further includes a second circuit module coupled between the output node and a reference potential line. The second circuit selectively draws a current from the output node in response to a first control signal. The first control signal is generated in response to sensing a voltage fluctuation at a power supply node which supplies power to the first circuit module.

主权项

1. A circuit, comprising:
a first circuit module with a first input node, a second input node and an output node, wherein the first circuit module is configured to receive an input signal at the first input node and generate an amplified signal at the output node; and a second circuit module coupled between the output node and a reference potential line, configured to draw a current from the output node in response to a first control signal; wherein the second circuit module comprises a first MOS transistor of a first conductive type, a gate of the first MOS transistor being coupled to receive the first control signal; and wherein the second circuit module further comprises a second MOS transistor of a second conductive type, coupled in series with the first MOS transistor, a gate of the second MOS transistor being coupled to receive an inverted signal of the first control signal.