Antenna drive apparatus equipped with a stepping motor

Details Antenna drive apparatus equipped with a stepping motor Antenna drive apparatus equipped with a stepping motor

1995-06-21

1997-08-26

Tarcza, Thomas H.

Communications: directive radio wave systems and devices (e.g.,

Aircraft landing system

Microwave landing system

342426, 343757, H01Q 300

Patent

active

056614888

ABSTRACT:
An apparatus is disclosed which computes the full-step number of full-step drive pulses at each control period, generates microstep drive pulses on the basis of the full step number so as to make a drive angle at each control period correspond to a full-step unit, and drives a motor drive current on the basis of the microstep drive pulses.

REFERENCES:
patent: 3842420 (1974-10-01), Rabow
patent: 4035805 (1977-07-01), Mobley
patent: 4630056 (1986-12-01), Noguchi et al.
patent: 4912476 (1990-03-01), Miller et al.
patent: 5241319 (1993-08-01), Shimizu
patent: 5300935 (1994-04-01), Yu

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