InSb signal-conditioning circuit with built-in temperature compensation
OwnerRobert E. Bickinginventor
Life of this patent
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Abstract
A method and system for signal-conditioning utilizing a signal-conditioning circuit is disclosed. An offset correction voltage can be applied to a noninverting input of a signal-conditioning circuit. A magnetoresistor half-bridge signal can be applied to an inverting input of the signal-conditioning circuit. A voltage can then be compensated at the noninverting input to drive an output voltage of the signal-conditioning circuit to an input voltage divided by a value of two by calibration, thereby permitting the signal-conditioning circuit to contain temperature compensation capabilities.
Claims29
A method for signal-conditioning utilizing a signal-conditioning circuit, said method comprising the step of:
- applying an offset correction voltage to a noninverting input of a signal-conditioning circuit;
- applying a magnetoresistor half-bridge signal to an inverting input of said signal-conditioning circuit;
- compensating a voltage at said noninverting input to drive an output voltage of said signal-conditioning circuit to an input voltage divided by a value of two by calibration, thereby permitting said signal-conditioning circuit to contain temperature compensation capabilities.
A method for signal-conditioning utilizing a signal-conditioning circuit, said method comprising the step of:
- applying an offset correction voltage to a noninverting input of a signal-conditioning circuit;
- applying a magnetoresistor half-bridge signal to an inverting input of said signal-conditioning circuit;
- compensating a voltage at said noninverting input to drive an output voltage of said signal-conditioning circuit to an input voltage divided by a value of two by calibration thereof;
- configuring said signal-conditioning circuit to comprise at least one magnetoresistor in series with at least one resistor located in an inverting input of an amplifier associated with said signal-conditioning circuit;
- wherein said at least one magnetoresistor exhibits a negative scale factor temperature coefficient;
- and
- wherein an associated magnet exhibits a negative scale factor temperature coefficient to thereby permit a gain of said amplifier to increase with temperature.
A system for signal-conditioning utilizing a signal-conditioning circuit, said system comprising:
- an offset correction voltage applied to a noninverting input of a signal-conditioning circuit;
- a magnetoresistor half-bridge signal applied to an inverting input of said signal-conditioning circuit;
- and
- a voltage compensated at said noninverting input to drive an output voltage of said signal-conditioning circuit to an input voltage divided by a value of two by calibration.
A system for signal-conditioning utilizing a signal-conditioning circuit, said system comprising:
- an offset correction voltage applied to a noninverting input of a signal-conditioning circuit;
- a magnetoresistor half-bridge signal applied to an inverting input of said signal-conditioning circuit;
- a voltage compensated at said noninverting input to drive an output voltage of said signal-conditioning circuit to an input voltage divided by a value of two by calibration thereof;
- said signal-conditioning circuit configured to comprise at least one magnetoresistor in series with at least one resistor located in an inverting input of an amplifier associated with said signal-conditioning circuit;
- wherein said at least one magnetoresistor exhibits a negative scale factor temperature coefficient;
- and
- wherein an associated magnet exhibits a negative scale factor temperature coefficient to thereby permit a gain of said amplifier to increase with temperature.
An InSb signal-conditioning circuit, comprising:
- a noninverting signal input for application of offset correction voltages;
- an inverting input for application of magnetoresistor half-bridge signals;
- and
- a temperature compensator.
Dependencies are inferred from the claim text.