Invention Grant
- Patent Title: Converter circuit, and motor drive control apparatus, air-conditioner, refrigerator, and induction heating cooker provided with the circuit
- Patent Title (中): 转换电路，电机驱动控制装置，空调，冰箱，感应加热炊具等
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Application No.: US13058401Application Date: 2009-03-17
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Publication No.: US08817506B2Publication Date: 2014-08-26
- Inventor: Takuya Shimomugi , Yosuke Shinomoto , Kazunori Sakanobe , Michio Yamada , Kazunori Hatakeyama
- Applicant: Takuya Shimomugi , Yosuke Shinomoto , Kazunori Sakanobe , Michio Yamada , Kazunori Hatakeyama
- Applicant Address: JP Chiyoda-Ku, Tokyo
- Assignee: Mitsubishi Electric Corporation
- Current Assignee: Mitsubishi Electric Corporation
- Current Assignee Address: JP Chiyoda-Ku, Tokyo
- Agency: Buchanan Ingersoll & Rooney PC
- Priority: JP2008-223646 20080901
- International Application: PCT/JP2009/055109 WO 20090317
- International Announcement: WO2010/023978 WO 20100304
- Main IPC: H02M5/42
- IPC: H02M5/42 ; H02M7/04 ; H02M7/68
Abstract:
A converter circuit including a step-up converter including a rectifier, a step-up reactor, a switching element, and a reverse current prevention element; a step-up converter having a step-up reactor, a switching element, and a reverse current prevention element and connected in parallel with the step-up converter; a switching control unit that controls switching elements; and a smoothing capacitor that is provided at the output of the step-up converters. The switching control unit switches the current mode of the current flowing through the step-up reactors into any of a continuous mode, a critical mode, and a discontinuous mode based on a predetermined condition.
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