Search International and National Patent Collections

1. (WO2018180425) POWER SUPPLY DEVICE FOR VEHICLE

Pub. No.:    WO/2018/180425    International Application No.:    PCT/JP2018/009534
Publication Date: Fri Oct 05 01:59:59 CEST 2018 International Filing Date: Tue Mar 13 00:59:59 CET 2018
IPC: H02M 3/155
Applicants: AUTONETWORKS TECHNOLOGIES, LTD.
株式会社オートネットワーク技術研究所
SUMITOMO WIRING SYSTEMS, LTD.
住友電装株式会社
SUMITOMO ELECTRIC INDUSTRIES, LTD.
住友電気工業株式会社
Inventors: KANBARA, Hisanori
蒲原 永典
KODA, Naoya
甲田 直也
Title: POWER SUPPLY DEVICE FOR VEHICLE
Abstract:
Provided is a power supply device for a vehicle. The power supply device can switch between performing non-synchronous rectification control and synchronous rectification control and can keep an output voltage value from deviating significantly from a target voltage value when switching from the non-synchronous rectification control to the synchronous rectification control. According to the present invention, when a determination unit (41) determines, during the execution of non-synchronous rectification control, that current is increasing, a drive unit (27): switches to synchronous rectification control under which a first switch unit (21A) is given a PWM signal that has a fixed duty; and then performs synchronous rectification control under which the first switch unit (21A) is given a PWM signal that has a duty that is calculated by a feedback computation unit (42) on the basis of a target output voltage value and detection results from a detection unit (35).