- 专利标题: MOTOR DRIVE DEVICE, ELECTRIC VACUUM CLEANER, AND HAND DRYER
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申请号: EP19920791.1申请日: 2019-03-28
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公开(公告)号: EP3952103A1公开(公告)日: 2022-02-09
- 发明人: HATAKEYAMA, Kazunori , TAKAYAMA, Yuji , MATSUO, Haruka
- 申请人: MITSUBISHI ELECTRIC CORPORATION
- 申请人地址: JP Chiyoda-ku Tokyo 100-8310 7-3, Marunouchi 2-chome
- 代理机构: Mewburn Ellis LLP
- 国际公布: WO2020194753 20201001
- 主分类号: H02P27/06
- IPC分类号: H02P27/06
摘要:
A motor driving apparatus (2) includes: an inverter (11) including switching elements (51 to 54), converting a direct-current power supplied from a battery (10) into an alternating-current power, and supplying the alternating-current power to a single-phase motor (12); a first current detection unit (55a, 22) detecting current flowing through a leg (5A) including a switching element (51) and a switching element (52) connected in series to each other; a second current detection unit (55b, 22) detecting current flowing through a leg (5B) including a switching element (53) and a switching element (54) connected in series to each other; and a control unit (25) controlling the switching elements (51 to 54) such that a first time period and a second time period are continuous, a non-pulse current flowing through a detector (55a) of the first current detection unit during the first time period, a non-pulse current flowing through a detector (55b) of the second current detection unit during the second time period.
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