Title:
BOOST CONVERTER
Document Type and Number:
WIPO Patent Application WO/2021/059402
Kind Code:
A1
Abstract:
Provided is a boost converter capable of driving switches appropriately without increasing power supply capacity even when the number of driving circuits is great and, consequently, without increasing cost. The boost converter rectifies, boosts, and outputs the voltage of a single-phase AC power supply by switching based on pulse width modulation corresponding to a voltage command value. A second driving circuit (22) for driving a second switch (S2) is operated by the DC voltage of a first DC power supply (E1), and third and fourth driving circuits (23, 24) for driving third and fourth switches (S3, S4) are operated by the DC voltage of a second DC power supply (E2). When the third switch (S3) is turned on, a capacitor (12) of a bootstrap circuit (10) is charged with the DC voltage of the second DC power supply (E2), and a first driving circuit (21) for driving a first switch (S1) is operated with the voltage of the capacitor of the bootstrap circuit.
Inventors:
KUBOTA YOHEI (JP)
KANAMORI MASAKI (JP)
KATO KEIICHI (JP)
LI ZHIGANG (JP)
KANAMORI MASAKI (JP)
KATO KEIICHI (JP)
LI ZHIGANG (JP)
Application Number:
PCT/JP2019/037640
Publication Date:
April 01, 2021
Filing Date:
September 25, 2019
Export Citation:
Assignee:
TOSHIBA CARRIER CORP (JP)
International Classes:
H02M7/219; H02M1/08; H02M7/12
Domestic Patent References:
| WO2014088551A1 | 2014-06-12 | |||
| WO2015060255A1 | 2015-04-30 |
Other References:
VALIPOUR, H. ET AL.: "A wide input voltage range PFC converter with high-efficiency", 34TH ANNUAL IEEE APPLIED POWER ELECTRONICS CONFERENCE AND EXPOSITION, March 2019 (2019-03-01), pages 774 - 779, XP033555316, DOI: 10.1109/APEC.2019.8722293
Attorney, Agent or Firm:
S & S INTERNATIONAL PPC (JP)
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