Patent ID: 11942900
Assignee: POWER INTEGRATIONS, INC.
Field: Basic communication processes (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A compensated amplifier for use in a power converter controller, comprising:
a first amplifier coupled to receive a sensed signal and a reference signal and configured to generate a first error signal in response to the sensed signal and the reference signal;
a second amplifier coupled to the first amplifier and configured to generate a second error signal in response to the sensed signal and the reference signal;
an integrator coupled to the first amplifier and configured to generate an integrated error signal in response to the first error signal; and
an arithmetic operator coupled to the second amplifier, wherein the arithmetic operator is configured to generate a control signal in response to the integrated error signal and the second error signal,
wherein the first amplifier comprises a first transconductance amplifier, and
wherein the second amplifier comprises a differential amplifier, wherein the integrator comprises a capacitor coupled between an output of the first amplifier and an output of the second amplifier, and wherein the compensated amplifier further comprises a resistor coupled between the output of the first amplifier and a return.