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

Claim 19:
20. A controller for use in a power converter, comprising:
a driver modulator configured to generate a drive signal in response to a control signal to control switching of a power switch of the power converter to regulate transfer of energy from an input of the power converter to an output of the power converter; and
a compensated amplifier configured to generate the control signal in response to a reference signal and a sensed signal representative of the output of the power converter, wherein the compensated amplifier comprises:
a first amplifier coupled to receive the sensed signal and the reference signal and configured to generate a first error signal in response to the sensed signal and the reference signal;
a second mplifier coupled to the first amplifier and configured to generate a second error 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 integrator and the second amplifier and configured to generate a control signal in response to the integrated error signal and the second error signal,
wherein an input of the first amplifier is coupled to receive the sensed signal and the reference signal to generate the first error signal in response to the sensed signal and the reference signal, and wherein an input of the second amplifier is coupled to an output of the first amplifier to generate the second error signal in response to the first error signal.