Electricity: measuring and testing – Electrical speed measuring – Including speed-related frequency generator
Patent
1989-09-19
1991-11-26
Strecker, Gerard R.
Electricity: measuring and testing
Electrical speed measuring
Including speed-related frequency generator
307309, 323315, 32420712, 32420721, 32420725, 324252, G01P 3488, G01B 730, G05F 326, H03K 1790
Patent
active
050686062
ABSTRACT:
A measuring circuit comprising a transducer, a comparator controlled by the transducer, a bandgap reference circuit with current compensation, a first current mirror, a second current mirror controlled by the comparator and bandgap reference to control the total current. The transducer is a magnetoresistive transducer.
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patent: 4521727 (1985-06-01), Atherton et al.
patent: 4543527 (1985-09-01), Schuchmann et al.
patent: 4591739 (1986-05-01), Nagano
patent: 4687994 (1987-08-01), Fulkerson et al.
patent: 4734594 (1988-03-01), Nelson
patent: 4760285 (1988-07-01), Nelson
patent: 4833406 (1989-05-01), Foster
Berthold James P.
Kawate Keith W.
Margolis Robert M.
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