Driver circuit arrangement for a stepping motor

Details Driver circuit arrangement for a stepping motor Driver circuit arrangement for a stepping motor

1976-03-15

1977-06-28

Hohauser, Herman

Electricity: motive power systems

Open-loop stepping motor control systems

318685, 58 23D, G04C 304

Patent

active

040328279

ABSTRACT:
A crystal oscillator controlled stepping motor for a timekeeping device having the high frequency oscillator coupled to a divider which reduces the oscillator frequency to the required output frequency which, in turn, is coupled to the driver circuit arrangement.
The driver circuit arrangement provides drive pulses to the stepping motor in response to the output of the divider and a feedback signal from the stepping motor. The driver circuit arrangement in response to the output of the divider and the feedback signal detects faulty indexing steps and skipped or missed indexing steps and provides drive pulses to effect a remedial action.

REFERENCES:
patent: 3665697 (1972-05-01), Dome
patent: 3896363 (1975-07-01), Kinsel et al.

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