Patent ID: 6163143
Filing Date: 2000-12-19
Classification: H02M

Abstract:
A power supply apparatus having a power supply circuit, capable of changing an operation according to a notification from a load having a first operation mode and a second operation mode which indicates a smaller current consumption than the first operation mode, for generating DC output based on a given pulse signal, comprising:high-speed response means for generating a pulse signal to be provided for the power supply circuit based on a parameter relating to output of the power supply circuit;low-speed response means for generating a pulse signal to be provided for the power supply circuit based on a parameter relating to the output of the power supply circuit at a lower response speed than said high-speed response means; andcontrol means for stopping said high-speed response means after providing the pulse signal generated by said low-speed response means for the power supply circuit when a notification about a transfer from the first operation mode to the second operation mode is received from the load.