System and method for detection of zero current condition
US6847197B2 · kind B2 · utility
4Cited by
9References
8Claims
0Family size
Assignee
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Key dates
| Filing date | Jan 14, 2003 |
| Grant date | Jan 25, 2005 |
| Priority date | — |
| Expiry date | Jan 14, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B70/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method for converting power includes charging an inductor by coupling the inductor to a voltage source for a predetermined amount of time. Thereafter, the inductor is discharged by coupling the inductor to a ground until the current flowing through the inductor equals zero. A method for detecting a zero current flowing through the inductor includes coupling the inductor to a transistor and comparing the output of that transistor to a transistor coupled to ground.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.