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AssigneeJiang Su Multi Dimension Technology Co., Ltd
InventorsJames G. Deak, Insik Jin, Xiaofeng Lei, Weifeng Shen, Songsheng Xue
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A transducer is disclosed for detecting the AC and DC voltage difference between two nodes in an electrical circuit and electronically transmitting the measured voltage difference to an electrical system that is electrically isolated from the common mode potential of the two nodes. The voltage drop between two points in a circuit under test is determined by detecting the current flowing through a resistive shunt coil connected in parallel to the test points. Current through the resistive shunt coil is linearly proportional to the voltage difference between the test points, and it is detected by using a magnetic sensor that is separated from the shunt coil by an insulating dielectric barrier. The transducer can be packaged in a standard integrated circuit package in order to provide a small and low cost voltage transducer for test, measurement, control, and signal-isolation applications.
A single-package isolated voltage transducer (18) for measuring the differential voltage between two nodes in circuit, wherein the isolated voltage transducer (18) comprises:
A single-package isolated voltage transducer (18) for isolating an analog input signal from an analog output signal, wherein the voltage transducer (18) comprises:
An isolated voltage transducer using MTJ devices, in which the output of the MTJ devices is proportional to the bias voltage applied to the MTJ devices, the MTJ devices and the bias voltage are used to automatically scale the magnitude of the sensor response.
An isolated voltage transducer using MTJ devices, in which the MTJ devices has an on-chip electromagnet that is used to linearize the MTJ sensor response.
Dependencies are inferred from the claim text.