Elimination of power inductor thermistor with variable air gap
US10938302B2 · kind B2 · utility
0Cited by
6References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 19, 2017 |
| Grant date | Mar 2, 2021 |
| Priority date | — |
| Expiry date | Aug 28, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M3/1552
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A power system comprises a converter including an inductor core defining a gap, and a separator spanning the gap and contacting the core. The power system also includes a controller programmed to, responsive to a decrease in current ripple amplitude output by the converter to less than a first threshold, decrease power supplied by the converter. The first threshold is indicative of an inductance change through the core due to a temperature driven decrease in size of the separator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.