Title:
IN-VEHICLE POWER SUPPLY DEVICE
Document Type and Number:
WIPO Patent Application WO/2018/105383
Kind Code:
A1
Abstract:
Provided is an in-vehicle power supply device capable of reliably detecting connection of an external power supply and boosting a supply voltage based on the external power supply to charge an electricity storage unit. The in-vehicle power supply device (1) has: an external terminal (P3) served as a region to be connected when a power supply path (Lp) from an external power supply (Bp) is connected; a detection unit (30) for detecting that the power supply path (Lp) has been connected to the external terminal (P3); a power feeding circuit unit (40) for allowing current to flow from the external terminal (P3) side to the second conduction path (22) side at least when the power supply path (Lp) is connected to the external terminal (P3). A control unit (10A) controls the step-down and step-up operations of a voltage conversion unit (12) and allows the voltage conversion unit (12) to perform the step-up operation when the detection unit (30) detects the connection between the external terminal (P3) and the power supply path (Lp).
Inventors:
ITOU TAKANORI (JP)
TAKAHASHI SEIJI (JP)
TAKAHASHI SEIJI (JP)
Application Number:
PCT/JP2017/041803
Publication Date:
June 14, 2018
Filing Date:
November 21, 2017
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:
H02J7/00; B60L9/18; B60L11/18; B60R16/03; H02J1/00; H02M3/155
Foreign References:
| JP2009071898A | 2009-04-02 | |||
| JP2010098779A | 2010-04-30 |
Attorney, Agent or Firm:
GRANDOM PATENT LAW FIRM (JP)
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