Offset compensating circuit in fine control servo device

Details Offset compensating circuit in fine control servo device Offset compensating circuit in fine control servo device

1987-09-21

1988-11-22

Dobeck, Benjamin

Electricity: motive power systems

Positional servo systems

With compensating features

318616, 318624, 318592, G05D 13275

Patent

active

047868490

ABSTRACT:
An offset compensating circuit in a fine control servo. When the servo loop for an error signal is opened, the error signal is sampled and its positive and negative peaks are found. The average of the positive and negative peaks is determined as an offset signal to be subtracted from the error signal when the loop is closed.

REFERENCES:
patent: 4109189 (1978-08-01), Jacques et al.
patent: 4112342 (1978-09-01), Elliott
patent: 4156169 (1979-05-01), Imamura
patent: 4539608 (1985-09-01), Hill et al.

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