Title:
MOTOR DRIVE CONTROL DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/282133
Kind Code:
A1
Abstract:
A motor drive control device (10) comprises a first current sense unit (105) provided between an intermediate-potential end and a semiconductor switch group. A control circuit (104) recovers phase current information of a three-phase motor (103) on the basis of current values respectively detected by the first current sense unit (105) in intervals that, in a single period of a carrier signal, have mutually different combinations of phases in which a semiconductor switch (113u) on the intermediate-potential end side is in on-state.
Inventors:
DOYAMA YOSHIAKI
KYOGOKU AKIHIRO
MIYAZAKI HARUYUKI
KYOGOKU AKIHIRO
MIYAZAKI HARUYUKI
Application Number:
PCT/JP2022/025863
Publication Date:
January 12, 2023
Filing Date:
June 29, 2022
Export Citation:
Assignee:
PANASONIC IP MAN CO LTD (JP)
International Classes:
H02M7/48; H02P23/14; H02P25/16; H02P27/08
Foreign References:
| JP2010098820A | 2010-04-30 | |||
| JP2013021764A | 2013-01-31 | |||
| JP2013247724A | 2013-12-09 |
Attorney, Agent or Firm:
KAMATA Kenji et al. (JP)
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