ESTIMATOR LOCK DETECTION CIRCUIT FOR A SENSORLESS SWITCHED RELUCTANCE MACHINE SYSTEM - Patent 0893006

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EP 0 893 006 A1

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(43)	Date of publication:
	27.01.1999 Bulletin 1999/04

(21)	Application number: 97919894.0

(22)	Date of filing: 17.03.1997

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International Patent Classification (IPC):

H02P 6/ 18^{( . )}

H02P 25/ 08^{( . )}

(86)	International application number:
	PCT/US1997/004576

(87)	International publication number:
	WO 1997/038483 (16.10.1997 Gazette 1997/44)

(84)	Designated Contracting States:
	DE FR GB

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Priority:

09.04.1996 US 19960631299

(71)	Applicant: Sundstrand Corporation
	Rockford, IL 61125-7003 (US)

(72)	Inventor:
	JONES, Stephen, R. Winnebago, IL 61088-9340 (US)

(74)	Representative: SERJEANTS
	25, The Crescent King Street Leicester, LE1 6RX Leicester, LE1 6RX (GB)

(54)	ESTIMATOR LOCK DETECTION CIRCUIT FOR A SENSORLESS SWITCHED RELUCTANCE MACHINE SYSTEM