Switching power conversion circuit and power supply using same
PROBLEM TO BE SOLVED: To provide a switching power conversion circuit that has a power-factor improvement function by having a two-stage circuit configuration.SOLUTION: A switching power conversion circuit of the present invention includes: a first power circuit for correcting a power factor and con...
Saved in:
Main Authors | , , |
---|---|
Format | Patent |
Language | Chinese English |
Published |
21.05.2015
|
Subjects | |
Online Access | Get full text |
Cover
Loading…
Summary: | PROBLEM TO BE SOLVED: To provide a switching power conversion circuit that has a power-factor improvement function by having a two-stage circuit configuration.SOLUTION: A switching power conversion circuit of the present invention includes: a first power circuit for correcting a power factor and converting an input voltage into a bus voltage; a first feedback circuit connected to the first power circuit for outputting a first feedback signal according to the bus voltage; a second power circuit connected to the first power circuit for converting the bus voltage into an output voltage; a second feedback circuit connected to the second power circuit for outputting a second feedback signal according to the output voltage; and a controlling unit connected to the first power circuit, the second power circuit, the first feedback circuit, the second feedback circuit, and a system circuit for controlling the operation of the first power circuit according to the first feedback signal, controlling the operation of the s |
---|---|
Bibliography: | Application Number: TW20121148001 |