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Patent Searching and Data


Title:
ELECTRONIC CONTROL UNIT
Document Type and Number:
WIPO Patent Application WO/2018/037733
Kind Code:
A1
Abstract:
The present invention addresses the problem of improving power conversion efficiency by reducing power loss of a power supply system applied to an electronic control unit, and the problem of achieving the power supply system at low cost. The present invention is characterized in that some load-side regulators among a plurality of load-side regulators is connected to a path branching off between an inductor of a switching regulator and a first rectifying component and receives as input a node voltage between the inductor and the first rectifying component, wherein the some of the load-side regulators are provided with a second switching component for supplying the input voltage to a second output voltage side when turned on, a second capacitor for stabilizing the second output voltage, and a second control unit for on/off control of the second switching component in accordance with the second output voltage.

Inventors:
KURIMOTO HIROFUMI (JP)
SUGIYAMA YASUSHI (JP)
ISHIDA RYOSUKE (JP)
Application Number:
PCT/JP2017/024906
Publication Date:
March 01, 2018
Filing Date:
July 07, 2017
Export Citation:
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Assignee:
HITACHI AUTOMOTIVE SYSTEMS LTD (JP)
International Classes:
H02M3/155; G05F1/56
Foreign References:
JP2004140944A2004-05-13
JPH1141825A1999-02-12
US20150256073A12015-09-10
Attorney, Agent or Firm:
TODA Yuji (JP)
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