Inductor current measurement compensation for switching voltage regulators
US9627969B2 · kind B2 · utility
5Cited by
13References
22Claims
0Family size
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Key dates
| Filing date | May 27, 2014 |
| Grant date | Apr 18, 2017 |
| Priority date | — |
| Expiry date | Dec 19, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M1/0009
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A current estimation method for a switching voltage regulator that delivers current to a load through an inductor includes measuring a voltage across a capacitor of an RC current sense network coupled in parallel with the inductor, generating an estimate of the current through the inductor based on the voltage measured across the capacitor of the RC current sense network and adjusting the estimate of the current through the inductor by a compensation filter that compensates for variation in the inductance of the inductor as a function of at least one of temperature and current.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.