Title:
SWITCHING POWER SUPPLY DEVICE
Document Type and Number:
WIPO Patent Application WO/2018/221031
Kind Code:
A1
Abstract:
Provided is a switching power supply device in which the resolution of voltage control is high. The switching power supply device according to the present invention comprises a power conversion circuit configured to include a switching element, and a control circuit part that outputs a drive pulse to the switching element on the basis of an output voltage command value and an output voltage value of the power conversion circuit, the control circuit part changing a switching cycle on the basis of the difference between a calculation value of an operation amount based on the output voltage command value and the output voltage value, and a set value of the operation amount, and outputting the drive pulse.
Inventors:
TAKAHASHI NAOYA (JP)
KUBO KENJI (JP)
ONO TAKUMA (JP)
KUBO KENJI (JP)
ONO TAKUMA (JP)
Application Number:
PCT/JP2018/015328
Publication Date:
December 06, 2018
Filing Date:
April 12, 2018
Export Citation:
Assignee:
HITACHI AUTOMOTIVE SYSTEMS LTD (JP)
International Classes:
H02M3/155; H02M3/28
Domestic Patent References:
| WO2014192290A1 | 2014-12-04 |
Foreign References:
| JP2016163401A | 2016-09-05 | |||
| JP2016178800A | 2016-10-06 | |||
| JP2016046952A | 2016-04-04 |
Attorney, Agent or Firm:
TODA Yuji (JP)
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