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Class Information
Number: 330/6
Name: Amplifiers > With hall effect type means
Description: Subject matter wherein the amplifier includes means for applying or varying a magnetic field, and an electrical resistor subjected to such field or varying field in such manner that the value of the resistance transverse to the magnetic field changes, thus comprising a Hall Effect Device; such Hall Effect Device may comprise the amplifying device, per se, or may be included as a unilateralizing means (gyrator) to insure unilateral operation of the amplifier.










Patents under this class:

Patent Number Title Of Patent Date Issued
8576001 Offset compensation apparatus for magnetic detection circuit and method thereof Nov. 5, 2013
7902919 Current amplifying element and current amplification method Mar. 8, 2011
7626452 Driving circuit to avoid reverse current for soft switching DC motor Dec. 1, 2009
7605647 Chopper-stabilized amplifier and magnetic field sensor Oct. 20, 2009
7061311 Differential amplifier for dual bridge transducer Jun. 13, 2006
7005915 Series bridge circuit with amplifiers Feb. 28, 2006
6891431 Integrated semiconductor circuit configuration May. 10, 2005
6674322 Amplifier circuit with offset compensation Jan. 6, 2004
5389889 Temperature-compensated current source for use in a hall analog magnetic-field detector Feb. 14, 1995
5334944 Differential amplifier circuit for enhancing small voltage signals Aug. 2, 1994
4726453 Self-adjusting single- or twin-tube shock absorber Feb. 23, 1988
4709214 Integrated Hall element and amplifier with controlled offset voltage Nov. 24, 1987
4705964 Integrated circuit hall switch with adjustable operate point Nov. 10, 1987
4645950 Two-lead Hall effect sensor Feb. 24, 1987
4645949 Circuit arrangement for enhancing the utilizable hall-signal of hall sensor Feb. 24, 1987
4616188 Hall effect isolation amplifier Oct. 7, 1986
4464629 Hall element device Aug. 7, 1984
4382762 Thermoforming apparatus and method May. 10, 1983
4218659 Amplifier circuit for a hall-effect head Aug. 19, 1980
4163119 Protective circuit for electroacoustic transducer with hall element and voice coil temperature rise time constant circuit Jul. 31, 1979
4134030 Hall-effect integrated circuit switch Jan. 9, 1979
4099238 Apparatus for determining a magnetic field Jul. 4, 1978
3974425 Isolator circuit with improved frequency response Aug. 10, 1976











 
 
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