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Title:
VEHICLE-MOUNTED POWER SUPPLY CIRCUIT AND VEHICLE-MOUNTED POWER SUPPLY DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/003867
Kind Code:
A1
Abstract:
Provided is a configuration which, during normal times, can supply an operation voltage based on any one power storage unit to a control unit of a vehicle-mounted power supply device, and which can continue to reliably supply the operation voltage to the control unit even during abnormal times in which power supply from the power storage unit is reduced or stops. This vehicle-mounted power supply circuit (60) has: a first internal power supply unit (61) which supplies power to a control unit (30) on the basis of the power supplied from a first power storage unit (91); a second internal power supply unit (62) which supplies power to the control unit (30) on the basis of the power supplied from a second power storage unit (92); and an operation voltage regulating unit (64). When the power supply from the second internal power supply unit (62) is normal, the operation voltage regulating unit (64) outputs an operation voltage to the control unit (30) on the basis of the power from the second internal power supply unit (62); and when the power supply from the second internal power supply unit (62) is abnormal, the operation voltage regulating unit (64) outputs the operation voltage to the control unit (30) on the basis of the power from the first internal power supply unit (61).

Inventors:
KAWAMURA, Ibuki (1-14, Nishisuehiro-cho, Yokkaichi-sh, Mie 03, 〒5108503, JP)
KAWAKAMI, Takafumi (1-14, Nishisuehiro-cho, Yokkaichi-sh, Mie 03, 〒5108503, JP)
TAKAHASHI, Seiji (1-14, Nishisuehiro-cho, Yokkaichi-sh, Mie 03, 〒5108503, JP)
Application Number:
JP2018/022110
Publication Date:
January 03, 2019
Filing Date:
June 08, 2018
Export Citation:
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Assignee:
AUTONETWORKS TECHNOLOGIES, LTD. (1-14, Nishisuehiro-cho Yokkaichi-sh, Mie 03, 〒5108503, JP)
SUMITOMO WIRING SYSTEMS, LTD. (1-14, Nishisuehiro-cho Yokkaichi-sh, Mie 03, 〒5108503, JP)
SUMITOMO ELECTRIC INDUSTRIES, LTD. (5-33, Kitahama 4-chome Chuo-ku, Osaka-sh, Osaka 41, 〒5410041, JP)
International Classes:
H02M3/00; B60R16/02; B60R16/03; G06F1/26; G06F1/28; H02J7/34; H02J9/06
Foreign References:
JP2011172422A2011-09-01
JPH11196540A1999-07-21
JP2015220815A2015-12-07
Attorney, Agent or Firm:
GRANDOM PATENT LAW FIRM (Hirokoji Sakae Bldg. 3F, 4-1 Sakae 2-chome, Naka-ku, Nagoya-sh, Aichi 08, 〒4600008, JP)
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