发明授权
US08013612B2 Ground fault detection circuit for use in high voltage motor drive applications
有权
用于高压电机驱动应用的接地故障检测电路
- 专利标题: Ground fault detection circuit for use in high voltage motor drive applications
- 专利标题(中): 用于高压电机驱动应用的接地故障检测电路
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申请号: US12249116申请日: 2008-10-10
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公开(公告)号: US08013612B2公开(公告)日: 2011-09-06
- 发明人: Sergio Morini , Marco Giandalia , David Respigo , Stefano Ruzza , Massimo Grasso
- 申请人: Sergio Morini , Marco Giandalia , David Respigo , Stefano Ruzza , Massimo Grasso
- 申请人地址: US CA El Segundo
- 专利权人: International Rectifier Corporation
- 当前专利权人: International Rectifier Corporation
- 当前专利权人地址: US CA El Segundo
- 代理机构: Farjami & Farjami LLP
- 主分类号: G01R31/02
- IPC分类号: G01R31/02
摘要:
An integrated ground fault detection circuit in accordance with an embodiment of the present application includes a shunt resistor provided on a positive rail of a DC bus, a high voltage pocket including a sensory circuit connected to the shunt resistor and operable to detect a fault condition indicating a short circuit and a transmitter section operable to continuously transmit a fault condition signal indicating the fault condition and a low voltage pocket including a receiver operable to receive the fault condition signal from the sensory circuit and a logic unit, connected to the receiver, and operable to provide a fault output signal indicating the presence of a fault condition based on the fault condition signal.
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