Title:
DEVICE FOR DETECTING THE ROTATIONAL POSITION OF ROTOR OF MOTOR
Document Type and Number:
WIPO Patent Application WO/1987/005755
Kind Code:
A1
Abstract:
A device for detecting the rotational position of the rotor of a motor, which is capable of detecting the absolute rotational position of the rotor shaft of the motor over one turn of the rotor shaft, and which is also capable of detecting the rotational position of the rotor magnetic poles for controlling motor drive simultaneously with the absolute positional detection is offered. An absolute position transducer (1) coupled to the rotor shaft of the motor detects the absolute rotational position of the rotor shaft while the rotor shafts turns once, and emits a code signal (a) that represents the detected position. The code signal (a) is converted by a code converter means (5) into a rotor magnetic pole position signal (b) for controlling motor drive.
Inventors:
SAKANO TETSURO (JP)
Application Number:
PCT/JP1987/000161
Publication Date:
September 24, 1987
Filing Date:
March 14, 1987
Export Citation:
Assignee:
FANUC LTD (JP)
International Classes:
H02K11/00; H02P6/00; H02P6/16; H02P8/00; H02P8/38; H02P23/00; H02P25/00; H02P27/00; (IPC1-7): H02P6/00
Foreign References:
| JPH05910162A |
Other References:
See also references of EP 0273052A4
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