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Patent Searching and Data


Title:
ONBOARD BACKUP CIRCUIT AND ONBOARD BACKUP DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/208203
Kind Code:
A1
Abstract:
The present invention more easily achieves a configuration which makes it possible, even if a power supply from a power source unit is cut off, to immediately supply power from another power supply source to a power supply target. In a backup circuit (1), a control unit (30) causes a second voltage conversion unit (12) to perform a voltage conversion operation in response to a predetermined first backup condition having been met, and when the control unit (30) has caused the second voltage conversion unit (12) to perform the voltage conversion operation, a power source unit-side conduction path (71) and a power storage unit-side conduction path (72) are brought into conduction via a resistive part (32). Moreover, while the second voltage conversion unit (12) is being made to perform the voltage conversion operation, the control unit (30) causes a first voltage conversion unit (11) to perform a second operation in response to a predetermined second backup condition having been met.

Inventors:
SHIMAMOTO Kazushi (1-14, Nishisuehiro-cho, Yokkaichi-sh, Mie 03, 〒5108503, JP)
SUGISAWA Yuuki (1-14, Nishisuehiro-cho, Yokkaichi-sh, Mie 03, 〒5108503, JP)
Application Number:
JP2019/015455
Publication Date:
October 31, 2019
Filing Date:
April 09, 2019
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:
B60R16/03; B60R16/033; H02J1/00; H02J7/34
Foreign References:
JP2017154579A2017-09-07
JP2003244937A2003-08-29
JP2015080372A2015-04-23
JP2014231327A2014-12-11
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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