Apparatus and method for detecting rotation

Details Apparatus and method for detecting rotation Apparatus and method for detecting rotation

2007-09-11

2007-09-11

Leykin, Rita (Department: 2837)

Electricity: electrical systems and devices

Safety and protection of systems and devices

Motor protective condition responsive circuits

C180S443000, C180S444000

Reexamination Certificate

active

11000907

ABSTRACT:
In a rotation detection apparatus, a rotation-angle detector detects a rotation angle of a rotating body based on an output signal generated by a resolver. An exciting-signal generation circuit supplies an exciting signal for exiting the resolver to generate the output signal. An abnormality detection circuit detects an abnormality of an exciting-signal output terminal for outputting the exciting signal or an abnormality of an exciting-signal line for transmitting the exciting signal. A power-supply stopping circuit stops a power supply to the exciting-signal generation circuit when the abnormality detection circuit detects an abnormality of the exciting-signal output terminal or detects an abnormality of the exciting-signal line.

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Examination Report from European Patent Office issued on Apr. 18, 2006 for the corresponding European patent application No. 04 028 594.2-1236, (a copy thereof).

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