Electrical generator or motor structure – Dynamoelectric – Rotary
Patent
1993-02-17
1994-12-13
Stephan, Steven L.
Electrical generator or motor structure
Dynamoelectric
Rotary
318138, 318254, H02K 1100, H02P 118, H02P 308, H02P 506
Patent
active
053732065
ABSTRACT:
A position detection apparatus for a switched reluctance motor wherein a single sensor is used for detecting a rotor position and thus driving the motor. A sensing unit is provided with a single sensor for detecting a position of a rotor, a start signal generation circuit, for generating a start signal for aligning the rotor with a stator upon starting, a position detection signal input circuit for passing the position detection signal following the start signal, a drive control pulse generation circuit, for receiving an output signal from the position detection signal input circuit as a clock signal, sequentially shifting driving signals for respective phases and generating drive control pulses for respective phases, and a phase excitation circuit for logically combining phase drive control pulses from the drive control pulse generator with the start signal from the start, signal generation circuit and exciting the phases sequentially.
REFERENCES:
patent: 4748387 (1988-05-01), Tanuma et al.
patent: 4777419 (1988-10-01), Obradovic
patent: 4983894 (1991-01-01), Oku et al.
Goldstar Co. Ltd.
Stephan Steven L.
To E.
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