Title:
CONTROL UNIT AND CONTROL SYSTEM OF DC-DC CONVERTER
Document Type and Number:
Japanese Patent JP2010252512
Kind Code:
A
Abstract:
To solve the problem wherein a DC-DC converter 10 is upsized by design such that the DC-DC converter 10 withstands continuous use under the practically maximum load conditions.
A control unit 30 operates switching elements Q1-Q4 to perform feedback control of an output voltage V of the DC-DC converter 10 to a target voltage Vref. In this case, an output current I of the DC-DC converter 10 becomes not less than a continuous rated current, thus raising a switching frequency. In this case, the continuous rated current is set based on the maximum current in a region where the practical use is continued, and is smaller than current under the practical maximum load conditions.
Inventors:
GOTO SHINYA
Application Number:
JP2009098820A
Publication Date:
November 04, 2010
Filing Date:
April 15, 2009
Export Citation:
Assignee:
DENSO CORP
International Classes:
H02M3/28
Domestic Patent References:
| JP2004048867A | 2004-02-12 | |||
| JPH10229673A | 1998-08-25 | |||
| JPH0956152A | 1997-02-25 | |||
| JPH0255572A | 1990-02-23 | |||
| JP2003324942A | 2003-11-14 | |||
| JP2000341801A | 2000-12-08 | |||
| JP2001258242A | 2001-09-21 | |||
| JP2005051994A | 2005-02-24 | |||
| JPH08111974A | 1996-04-30 | |||
| JP2005312279A | 2005-11-04 | |||
| JP2006271136A | 2006-10-05 | |||
| JPS5819921A | 1983-02-05 | |||
| JPH10225116A | 1998-08-21 | |||
| JP2004048867A | 2004-02-12 | |||
| JPH10229673A | 1998-08-25 | |||
| JPH0956152A | 1997-02-25 | |||
| JPH0255572A | 1990-02-23 | |||
| JP2003324942A | 2003-11-14 | |||
| JP2000341801A | 2000-12-08 | |||
| JP2001258242A | 2001-09-21 | |||
| JP2005051994A | 2005-02-24 | |||
| JPH08111974A | 1996-04-30 | |||
| JP2005312279A | 2005-11-04 | |||
| JP2006271136A | 2006-10-05 |
Attorney, Agent or Firm:
Tsuyoshi Yamada
Yasunari Kurita
Kyoko Hino
Satoru Ando
Yasunari Kurita
Kyoko Hino
Satoru Ando