Invention Grant
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
- Patent Title: Ground fault detection circuit for use in high voltage motor drive applications
- Patent Title (中): 用于高压电机驱动应用的接地故障检测电路
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Application No.: US12249116Application Date: 2008-10-10
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Publication No.: US08013612B2Publication Date: 2011-09-06
- Inventor: Sergio Morini , Marco Giandalia , David Respigo , Stefano Ruzza , Massimo Grasso
- Applicant: Sergio Morini , Marco Giandalia , David Respigo , Stefano Ruzza , Massimo Grasso
- Applicant Address: US CA El Segundo
- Assignee: International Rectifier Corporation
- Current Assignee: International Rectifier Corporation
- Current Assignee Address: US CA El Segundo
- Agency: Farjami & Farjami LLP
- Main IPC: G01R31/02
- IPC: G01R31/02

Abstract:
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.
Public/Granted literature
- US20090102488A1 GROUND FAULT DETECTION CIRCUIT FOR USE IN HIGH VOLTAGE MOTOR DRIVE APPLICATIONS Public/Granted day:2009-04-23
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