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Patent Searching and Data


Title:
VOLTAGE CONVERSION DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/235323
Kind Code:
A1
Abstract:
Provided is a technology which allows shortening the time required to switch a PWM signal when driving a voltage conversion unit, and determining duty according to the internal resistance and the current value of a power supply unit. A voltage conversion device comprises: a current detection unit (44) that detects a current value of a conductive path (10); an internal resistance detection unit (42) that detects internal resistance of a first power supply unit (3); a determination unit (83) that determines a usage duty; and a driving unit (38) that outputs as a control signal a PWM signal according to the usage duty determined by the determination unit (83). The determination unit (83) determines the usage duty on the basis of the internal resistance detected by the internal resistance detection unit (42) and the current value detected by the current detection unit (44).

Inventors:
NAKASHIMA ARATA (JP)
Application Number:
JP2020/018215
Publication Date:
November 26, 2020
Filing Date:
April 30, 2020
Export Citation:
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Assignee:
AUTONETWORKS TECHNOLOGIES LTD (JP)
SUMITOMO WIRING SYSTEMS (JP)
SUMITOMO ELECTRIC INDUSTRIES (JP)
International Classes:
H02M3/155
Foreign References:
JP2013236435A2013-11-21
JP2007068290A2007-03-15
JP2018029454A2018-02-22
Attorney, Agent or Firm:
GRANDOM PATENT LAW FIRM (JP)
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