Title:
力率改善コンバータ及びその制御方法
Document Type and Number:
Japanese Patent JP3988724
Kind Code:
B2
Abstract:
An operation amplifier (113) of a control unit (106) compares the detected step-up amount of an inductor (L11) with a reference voltage (ES12). When a low voltage is supplied from an AC power source, the detected step-up amount increases unless the output voltage changes. If the detected value exceeds the reference voltage, the control unit lowers the target level of switching current. An independent claim is also included for power factor improvement control method.
More Like This:
| WO/2002/025800 | SWITCHING MODE POWER SUPPLY WITH HIGH EFFICIENCY |
| WO/2023/243115 | POWER CONVERSION DEVICE |
Inventors:
Seiya Fukumoto
Hiroshi Usui
Koichi Morita
Hiroshi Usui
Koichi Morita
Application Number:
JP2003559003A
Publication Date:
October 10, 2007
Filing Date:
January 08, 2003
Export Citation:
Assignee:
Sanken Electric Co., Ltd.
International Classes:
H02M7/12; H02M1/00; H02M1/42; H02M3/155; H02M3/156
Domestic Patent References:
| JP3022865A | ||||
| JP11122921A | ||||
| JP6153495A | ||||
| JP2001268897A | ||||
| JP9238470A | ||||
| JP9205766A | ||||
| JP2001145337A |
Attorney, Agent or Firm:
Kimura Mitsuru
Takanori Mamoru
Takanori Mamoru