Title:
電源装置起動方法、電源装置の起動回路及び電源装置
Document Type and Number:
Japanese Patent JP4013898
Kind Code:
B2
Abstract:
When an AC power source ( 1 ) is turned on, energy is accumulated in a backup capacitor ( 63 ) by an energy supply circuit ( 64 ). An internal power source ( 65 ) supplies the energy accumulated in the capacitor ( 63 ) to a control unit ( 49 ). Thus, a power factor improvement circuit ( 40 - 2 ) operates. When the power factor improvement circuit ( 40 - 2 ) operates to output a predetermined voltage, an output voltage detection circuit ( 67 ) detects the voltage, and switches the internal power source ( 66 ) on. The turned on internal power source ( 66 ) supplies the energy in the capacitor ( 63 ) to a control unit ( 56 ) to operate a DC/DC conversion circuit ( 50 ). In this way, by operating the DC/DC conversion circuit ( 50 ) after operating the power factor improvement circuit ( 40 - 2 ), the capacity of the capacitor ( 63 ) can be reduced.
Inventors:
Masaaki Shimada
Tomoyasu Yamada
Tomoyasu Yamada
Application Number:
JP2003566969A
Publication Date:
November 28, 2007
Filing Date:
February 10, 2003
Export Citation:
Assignee:
Sanken Electric Co., Ltd.
International Classes:
H02M3/28; H02M1/00; H02M1/36; H02M1/42; H02M3/155; H02M7/12
Domestic Patent References:
| JP2001157450A | ||||
| JP2001103743A | ||||
| JP8172773A |
Attorney, Agent or Firm:
Kimura Mitsuru
Takanori Mamoru
Takanori Mamoru