Automatic bias adjustment circuit for a successive ranged analog

Details Automatic bias adjustment circuit for a successive ranged analog Automatic bias adjustment circuit for a successive ranged analog

1978-04-20

1980-03-11

Miller, Charles D.

Communications: electrical

Audible indication

Percussion-type sound producer

340347AD, H03K 1302

Patent

active

041930665

ABSTRACT:
An automatic bias adjustment circuit for a successive ranged analog/digital converter (SRADC) that eliminates the need for manual bias adjustments and calibration inputs. The bias correction circuit comprehends dual flip flops that are triggered by selected comparators of the SRADC n bit parallel analog/digital converter. The flip flop output signals control up/down counters whose output bits drive digital/analog converter. The digital/analog converted signals are introduced back into the SRADC analog chain to zero bias errors in a particular sub-range. A disabling circuit prevents operation of the bias adjustment circuits for the first sub-range.

REFERENCES:
patent: 3501625 (1970-03-01), Gorbatenko
patent: 3646586 (1972-02-01), Kurz
patent: 3754232 (1973-08-01), Gut
patent: 3786491 (1974-01-01), Carleton
patent: 3889255 (1975-06-01), Pettersen

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