Invention Grant
US09413238B2 Feed control apparatus for inductive load with reduced power loss
有权
用于感性负载的馈电控制装置,降低功率损耗
- Patent Title: Feed control apparatus for inductive load with reduced power loss
- Patent Title (中): 用于感性负载的馈电控制装置,降低功率损耗
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Application No.: US14171162Application Date: 2014-02-03
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Publication No.: US09413238B2Publication Date: 2016-08-09
- Inventor: Shozo Kanzaki , Koji Hashimoto
- Applicant: Mitsubishi Electric Corporation
- Applicant Address: JP Tokyo
- Assignee: Mitsubishi Electric Corporation
- Current Assignee: Mitsubishi Electric Corporation
- Current Assignee Address: JP Tokyo
- Agency: Sughrue Mion, PLLC
- Priority: JP2013-199492 20130926
- Main IPC: H02M3/156
- IPC: H02M3/156 ; H02M3/158 ; H03K17/0814 ; H03K17/687 ; H03K17/74 ; H02M3/155

Abstract:
In a feed control apparatus that controls a feed state for an inductive load by controlling the opening and closing of a load opening and closing element connected in series to the inductive load, a free-wheeling circuit element employing a field effect transistor is connected in parallel to the inductive load so that a capacitor is charged by opening the free-wheeling circuit element when the load opening and closing element is closed and the free-wheeling circuit element is closed by charges charged to the capacitor when the load opening and closing element is opened. A connection is made in polarity in which a closed-circuit conduction direction in the free-wheeling circuit element is the same as a conduction direction in an internal parasitic diode of the free-wheeling circuit element, and the free-wheeling circuit element conducts backward by a small-capacity capacitor. Consequently, a voltage drop and a temperature rise are reduced.
Public/Granted literature
- US20150084612A1 FEED CONTROL APPARATUS FOR INDUCTIVE LOAD Public/Granted day:2015-03-26
Information query
IPC分类: