Magnetoresistive speed sensor processing circuit utilizing a sym

Details Magnetoresistive speed sensor processing circuit utilizing a sym Magnetoresistive speed sensor processing circuit utilizing a sym

1991-09-18

1993-07-27

Strecker, Gerard R.

Electricity: measuring and testing

Electrical speed measuring

Including speed-related frequency generator

307355, 324173, 32420712, 32420721, G01P 3481, G01P 3488, H03K 1700

Patent

active

052313514

ABSTRACT:
A processing circuit for a magnetoresistive rotary speed sensor (13) or the like having a comparator (11) with switching hysteresis for converting an analog sensor signal into a digital switching signal. An apparatus is provided at the input side of the comparator in order to alternately supply each of the comparator inputs, as a function of the switching signal at the output side of the comparator, symmetrically with a given hysteresis signal as a switching threshold. This apparatus also includes a preamplifier (15) which precedes the comparator non-inverting input and which amplifies the sensor signal, and an offset amplifier (18) of the same construction which precedes the comparator inverting input and which amplifiers an offset signal of a preceding offset network (21). The processing circuit provides a simple, integrable circuit which suppresses offsets and compensates for temperature and supply voltage fluctuations and any spread in tolerances of the circuit components.

REFERENCES:
patent: 4359685 (1982-11-01), Eguchi et al.
patent: 4456840 (1984-06-01), Ide et al.
patent: 4712064 (1987-12-01), Eckardt et al.
patent: 5043660 (1991-08-01), Hasegawa
patent: 5055781 (1991-10-01), Sakakibara et al.
Valvo Technische Information 861105, "Anwendungen der Magnetfeldsensoren KMZ 10," pp. 1-17, Nov. 5, 1986.

Affiliated with

Also associated with

Rating

Magnetoresistive speed sensor processing circuit utilizing a sym does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Magnetoresistive speed sensor processing circuit utilizing a sym, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Magnetoresistive speed sensor processing circuit utilizing a sym will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2344500