Patent ID: 8984037
Filing Date: 2015-03-17
Classification: G01R,G06F,H02M

Abstract:
1. A power supply control apparatus comprising: a first adder configured to generate a difference signal based on a target value and a feedback signal; a compensator having a first transfer function Wc(z) and configured to generate a control signal based on the difference signal; a control target having a second transfer function Wp(z) and configured to output an output signal generated in response to said control signal; a disturbance canceller having a third transfer function {1+Wc(z)·Wp(z)}/{Wc(z)·Wp(z)} and configured to generate a disturbance cancelling signal based on the output signal corresponding to a control amount y; a second adder configured to generate a differential disturbance signal based on an output of said first adder and the disturbance cancelling signal; and a filter circuit having a fourth transfer function K(z) and configured to generate the feedback signal based on the differential disturbance signal, wherein said compensator receives the difference signal and the output signal and carries out a compensating operation based on the difference signal and the output signal such that the control amount y becomes equal to the target value.