Control circuitry using electronic emulation of a synchro signal

Details Control circuitry using electronic emulation of a synchro signal Control circuitry using electronic emulation of a synchro signal

1991-06-03

1992-12-22

Williams, Howard L.

Coded data generation or conversion

Phase or time of phase change

Synchro or resolver signal

341114, 318654, H03M 148

Patent

active

051736969

ABSTRACT:
The invention herein disclosed is a digital circuit which emulates a synchro signal in a synchro-resolver follower system for precise control of shaft position and rotation at very low rotational rates. The subject invention replaces the synchro and drive motor in a synchro-resolver follower system with a digital and analog synchro emulation circuit for generating the resolver control signal. The synchro emulation circuit includes amplitude modulation means to provide relatively high frequency resolver excitation signals for accurate resolver response even with very low shaft rotation rates.

REFERENCES:
patent: 4075698 (1978-02-01), Lode
patent: 4204257 (1980-05-01), Hungerford
patent: 4857926 (1989-08-01), Neglia et al.
patent: 4933674 (1990-06-01), Gasperi et al.

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