Free-wheeling diode control method and apparatus and power switching apparatus
US10917014B2 · kind B2 · utility
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20Claims
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Key dates
| Filing date | Feb 28, 2020 |
| Grant date | Feb 9, 2021 |
| Priority date | — |
| Expiry date | Feb 28, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M3/1582
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A free-wheeling diode control method includes determining whether a sum of a first pulse width value of a free-wheeling diode obtained according to an inductance current law and a third pulse width value of a main control tube meets a first preset condition, obtaining a determining result, and controlling, according to the determining result, conduction of the free-wheeling diode according to the first pulse width value or a second pulse width value of the free-wheeling diode obtained according to a volt-second balance law.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.