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1. (WO2018079033) VOLTAGE CONVERTING DEVICE, STEP-DOWN CONTROL METHOD FOR VOLTAGE CONVERTING CIRCUIT, STEP-UP CONTROL METHOD FOR VOLTAGE CONVERTING CIRCUIT, AND COMPUTER PROGRAM

Pub. No.:    WO/2018/079033    International Application No.:    PCT/JP2017/030228
Publication Date: Fri May 04 01:59:59 CEST 2018 International Filing Date: Fri Aug 25 01:59:59 CEST 2017
IPC: H02M 3/155
Applicants: SUMITOMO ELECTRIC INDUSTRIES, LTD.
住友電気工業株式会社
Inventors: SANO, Takaaki
佐野 隆章
Title: VOLTAGE CONVERTING DEVICE, STEP-DOWN CONTROL METHOD FOR VOLTAGE CONVERTING CIRCUIT, STEP-UP CONTROL METHOD FOR VOLTAGE CONVERTING CIRCUIT, AND COMPUTER PROGRAM
Abstract:
A control unit provided to this voltage converting device causes a high-voltage-side switching element to operate in a first mode in which the high-voltage-side switching element is turned on and controls a resonant current caused by a first inductor, a second inductor, and a capacitor to flow; and causes the high-voltage-side switching element to operate in a second mode in which the high-voltage-side switching element is turned off, at the nth (n is an integer equal to or greater than 2) period, which is the change period of the resonant current in the first mode, and causes a reflux current of the second inductor to flow to a low-voltage-side switching element or the capacitor; and after the operation in the second mode, causes the high-voltage-side switching element to be turned on and transitioned to the first mode.