Methods and apparatus for current sensing
US8120346B2 · kind B2 · utility
10Cited by
9References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 11, 2008 |
| Grant date | Feb 21, 2012 |
| Priority date | — |
| Expiry date | Jul 2, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M1/0009
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Methods and apparatus for current sensing according to various aspects of the present invention sense the current in a circuit, such as an inductor circuit. The current sensing systems may comprise an RC element connected such that the RC time constant matches the L/R time constant of the inductor. The current sensor may be configured to generate voltages that are proportional to the instantaneous current in the inductor with scaled gain for a wide range of inductor self resistance (DCR) values.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.