Resistance measurement and current control
US11366024B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 4, 2017 |
| Grant date | Jun 21, 2022 |
| Priority date | — |
| Expiry date | Feb 10, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01K2213/00
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A technique for measuring the resistance of a resistive element 4 in the presence of a series diode is provided. By supplying three different currents I1, I2, I3 and measuring corresponding voltages V1, V2, V3 across the resistive element and diode, the voltages can be combined to at least partially eliminate an error in the measured resistance of the resistive element caused by a voltage drop across the diode. A technique for current control in an array of resistive elements is also described in which a column of resistive elements is provided with two or more current sources switched so that while one current source is providing current to the column line corresponding to a selected resistive element, another current source has its amount of current adjusted.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.