Multiplexed synchro driver

Details Multiplexed synchro driver Multiplexed synchro driver

1986-03-27

1987-05-19

Dobeck, Benjamin

Electricity: motive power systems

Positional servo systems

With particular 'error-detecting' means

318661, 340347SY, G05B 602

Patent

active

046671382

ABSTRACT:
An improved drive control circuit is disclosed for enabling the multiplexed drive of synchro receivers. A zero crossing detector is coupled to sense the zero crossings of a signal driving the excitation winding of a synchro receiver. A counter coupled to the output of the zero crossing detector responds to one of every n counts to provide a count signal for operating a synchro driver associated with each one of multiple synchro receivers. The count signal causes the synchro driver to provide a signal output to the respective synchro receiver during a period defined by the count signal to reduce average power dissipation and provide effective damping without sacrificing peak current capability.

REFERENCES:
patent: 3829752 (1974-08-01), Martines et al.
patent: 4328483 (1982-05-01), Swartz et al.
patent: 4467320 (1984-08-01), McPhee
patent: 4518905 (1985-05-01), Rhodes, Jr.

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