Current sensing and measuring method and apparatus
US8314606B2 · kind B2 · utility
3Cited by
9References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 17, 2009 |
| Grant date | Nov 20, 2012 |
| Priority date | — |
| Expiry date | Oct 24, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R19/0092
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method can include obtaining a voltage across a first transistor as an obtained voltage. The method can also include multiplying the obtained voltage by a predetermined multiple M to yield a multiplied voltage. The method can further include applying the multiplied voltage to a second transistor, wherein the second transistor is N times smaller than the first transistor. The method can additionally include providing an output current of the second transistor as an M/N scaled estimate of an output current of the first transistor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.