发明授权
- 专利标题： Inverter circuit
- 专利标题（中）： 逆变电路
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申请号： US672410申请日： 1991-03-20
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公开(公告)号： US5280228A公开(公告)日： 1994-01-18
- 发明人: Akihiko Kanouda , Hideki Miyazaki , Kouzou Watanabe , Kenichi Onda
- 申请人： Akihiko Kanouda , Hideki Miyazaki , Kouzou Watanabe , Kenichi Onda
- 申请人地址： JPX Tokyo
- 专利权人： Hitachi, Ltd.
- 当前专利权人： Hitachi, Ltd.
- 当前专利权人地址： JPX Tokyo
- 优先权： JPX2-68261 19900320
- 主分类号： H01L27/082
- IPC分类号： H01L27/082 ; H01L21/8222 ; H01L27/06 ; H02H7/122 ; H02M7/48 ; H02M7/5387 ; H02P27/08 ; H02P5/40 ; H02M3/24
摘要：
A three-phase bridge inverter for controlling a motor with a variable speed includes a drive circuit therefor and an overcurrent protection circuit on one integrated chip. The inverter IC can be operated by directly inputting a direct current obtained by rectifying commercial 100 V. Thus, the inverter chip reduces the size and the weight of a system, improves the usability, lowers the cost thereof and permits mass production fabrication. Also, the life of the IC is increased by detecting current flowing through the inverter and the temperature of the chip and stopping the operation, when an abnormality is found.
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