Current measurement apparatus, molecular entity sensing apparatus, method of measuring a current, method of sensing a molecular entity
US-2024426772-A1 · Dec 26, 2024 · US
Hall sensors and sensing methods
US9018948B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9018948-B2 |
| Application number | US-201213559197-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 26, 2012 |
| Priority date | Jul 26, 2012 |
| Publication date | Apr 28, 2015 |
| Grant date | Apr 28, 2015 |
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Abstract
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Embodiments relate to multi-contact sensor devices and operating methods thereof that can reduce or eliminate offset error. In embodiments, sensor devices can comprise three or more contacts, and multiple sensor devices can be combined. The sensor devices can comprise Hall sensor devices, such as vertical Hall devices, or other sensor types. Operating modes can be implemented for the multi-contact sensor devices which offer significant modifications of and improvements over conventional spinning current principles. In a first operating mode, the sensor is supplied with the same input current in all operating phases, with the output voltages of all operating cycles sensed and processed. In another operating mode, the sensor device is supplied with the same input voltage in all operating phases, the sense terminals are forced to constant potentials, and the currents flowing into or out of the sense terminals are sensed and processed.
First claim
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What is claimed is: 1. A sensor device comprising: at least one sensor element configured to sense a physical characteristic and comprising three contacts; and sensor circuitry coupled to the at least one sensor element and configured to operate the at least one sensor element in a plurality of operating phases such that in each operating phase a supply current is injected into one of the three contacts as a supply contact and a potential is measured at a second of the three con…
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- What does patent US9018948B2 cover?
- Embodiments relate to multi-contact sensor devices and operating methods thereof that can reduce or eliminate offset error. In embodiments, sensor devices can comprise three or more contacts, and multiple sensor devices can be combined. The sensor devices can comprise Hall sensor devices, such as vertical Hall devices, or other sensor types. Operating modes can be implemented for the multi-cont…
- Who is the assignee on this patent?
- Ausserlechner Udo, Infineon Technologies Ag
- What technology area does this patent fall under?
- Primary CPC classification G01R19/25. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Apr 28 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).