Digital rotation detecting apparatus

Details Digital rotation detecting apparatus Digital rotation detecting apparatus

1986-09-03

1988-03-29

LaRoche, Eugene R.

Oscillators

Automatic frequency stabilization using a phase or frequency...

With reference oscillator or source

331 65, 318314, H03L 706, H02P 500

Patent

active

047346558

ABSTRACT:
A digital rotation detecting apparatus of the invention, which is adapted to detect a phase angle .theta..sub.r of a resolver by using a multiple frequency clock of the excitation frequency for the resolver and a clock of a voltage control oscillator, is detectable of an instantaneous value of the phase angle .theta..sub.r at a desired time without delay, is also detectable directly of the rotational speed, and requires no low frequency excitation because the excitation frequency for the resolver needs only to be constant.

REFERENCES:
patent: 3564368 (1971-02-01), Kelling
patent: 3828234 (1974-08-01), Goldberg
patent: 4072884 (1978-02-01), Treadwell
The Digital Rotation Detection Apparatus Using Resolve, 546 National Convention of Japanese Institute of Electrical Engineers.

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