G - Physics – 11 – B
Patent
G - Physics
11
B
330/22, 352/20.7
G11B 5/02 (2006.01) G01R 33/09 (2006.01) G11B 5/00 (2006.01)
Patent
CA 1326072
ABSTRACT OF THE INVENTION VOLTAGE AMPLIFIER FOR CONSTANT VOLTAGE BIASING AND AMPLIFYING SIGNALS FROM A MR SENSOR An amplifier for voltage biasing and amplifying the signals produced by a magnetic sensor is provided. Electrically, the resistance of the sensor is disposed between the bases of a differential pair comprising the input stage of the amplifier. Constant bias voltage for the sensor is provided independently of sensor resistance. DC feedback to the input stage balances current flow in both paths of the differential input stage to correct for DC offset arising in the output from input stage emitter resistor. The amplified signal, representing ?Rh/Rh, is sensed as a voltage across the magnetoresistive sensor, where .DELTA.RH the change in steady-state resistance, Rh, of the sensor.
534767
Jove Stephen Alan
Klaassen Klaas Berend
Nomura Calvin Shizuo
Van Peppen Jacobus Cornelis Leonardus
Hitachi Global Storage Technologies Netherlands B.v.
Saunders Raymond H.
LandOfFree
Voltage amplifier for constant voltage biasing and... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Voltage amplifier for constant voltage biasing and..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Voltage amplifier for constant voltage biasing and... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1291606