POWER SUPPLY DEVICE, POWER SUPPLY METHOD, AND POWER SUPPLY PROGRAM

Title:

POWER SUPPLY DEVICE, POWER SUPPLY METHOD, AND POWER SUPPLY PROGRAM

Document Type and Number:

WIPO Patent Application WO/2021/020018

Kind Code:

A1

Abstract:

The main purpose of the present invention is to provide a power supply device, a power supply method, and a power supply program which can suppress an increase in cost. The present invention comprises: a capacitor that is connected between an inverter for driving a motor and a battery, is connected in series to a contactor for switching, between an ON-state and an OFF-state, electric power supplied from the battery to the inverter, and is connected in parallel to the inverter; a pre-charge circuit that is connected in parallel to the contactor and pre-charges the capacitor; and a control circuit that controls the pre-charge circuit and the contactor, wherein the control circuit has a sensor that measures the voltage of the battery and the voltage of the capacitor, and, according to whether or not the ratio of the voltage of the capacitor to the voltage of the battery is equal to or smaller than a target value, determines whether or not the pre-charge is required, after determining whether or not the voltage of the capacitor is smaller than a voltage value obtained by adding a predetermined voltage value to the voltage of the battery.

Inventors:

HIRUMA HIROAKI (JP)

Application Number:

PCT/JP2020/025988

Publication Date:

February 04, 2021

Filing Date:

July 02, 2020

Export Citation:

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Assignee:

MITSUBA CORP (JP)

International Classes:

H02M7/48; H02H7/16; H02J7/00; H02P25/16; H02P27/06

Foreign References:

JP2005312160A	2005-11-04
JP2012222955A	2012-11-12
JP2006262586A	2006-09-28
JP2001065437A	2001-03-16
JP2005295697A	2005-10-20

Other References: