The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 03, 2024
Filed:
Feb. 09, 2021
Multidimension Technology Co., Ltd., Zhangjiagang, CN;
Zhimin Zhou, Zhangjiagang, CN;
James Geza Deak, Zhangjiagang, CN;
MultiDimension Technology Co., Ltd., Zhangjiagang, CN;
Abstract
A gain-controllable magnetoresistive analog amplifier includes a substrate in an X-Y plane, an output signal magnetoresistive sensor on the substrate, and an input signal coil and a gain adjustment coil. The input signal coil and the gain adjustment coil are respectively on two side surfaces of the sensor. The gain adjustment coil is used to input a gain signal by the generation of a gain magnetic field, in order to set the gain the magnetic field is applied along a magnetization direction of a free layer of the output signal magnetoresistive sensor. The input signal coil is used for inputting a current signal to generate an input magnetic field, in order to apply the input magnetic field to a magnetization direction of a pinned layer of the output signal magnetoresistive sensor. This amplifier provides isolation between input signals, output signals, and controllable gain signals.