Title:
DIRECT-CURRENT VOLTAGE CONVERSION DEVICE
Document Type and Number:
WIPO Patent Application WO/2018/163792
Kind Code:
A1
Abstract:
A direct-current voltage conversion device (10) that comprises: a first switch element (SW1) that is connected to an internal power supply line Ls; a low-pass filter (13); and an auxiliary resonant circuit (20) that includes an auxiliary switch element (SA) and an auxiliary reactor (LA) that are connected in series and is connected to a first connection point (N1) that is a connection point between the first switch element (SW1) and the low-pass filter (13). The direct-current voltage conversion device (10) also comprises: an auxiliary voltage application unit (12) that is electrically connected to the auxiliary resonant circuit (20) and a ground line (Lg) and applies an auxiliary voltage (VA) that is a fixed voltage that is lower than an input voltage (Vin) to the auxiliary reactor (LA) via the auxiliary switch element (SA); and a switch control unit (11) that switches the first switch element (SW1) at zero voltage and switches the auxiliary switch element (SA) at zero current.
Inventors:
CHIN TOU (JP)
KAWAKAMI TAKAFUMI (JP)
KAWAKAMI TAKAFUMI (JP)
Application Number:
PCT/JP2018/005834
Publication Date:
September 13, 2018
Filing Date:
February 20, 2018
Export Citation:
Assignee:
AUTONETWORKS TECHNOLOGIES LTD (JP)
SUMITOMO WIRING SYSTEMS (JP)
SUMITOMO ELECTRIC INDUSTRIES (JP)
SUMITOMO WIRING SYSTEMS (JP)
SUMITOMO ELECTRIC INDUSTRIES (JP)
International Classes:
H02M3/155
Foreign References:
| JPH06269165A | 1994-09-22 | |||
| JP2002252965A | 2002-09-06 | |||
| JP2002171759A | 2002-06-14 |
Attorney, Agent or Firm:
AKATSUKI UNION PATENT FIRM (JP)
Download PDF: