Ancillary circuit to induce zero voltage switching in a power converter
US11090105B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 2, 2019 |
| Grant date | Aug 17, 2021 |
| Priority date | — |
| Expiry date | Dec 2, 2039 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B70/10
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An electrosurgical generator includes a power supply configured to output a DC waveform, a current or voltage source coupled to the power supply and a power converter coupled to the current or voltage source, the power converter including at least one power switching element and a power inductor having an inductance value during switching of the at least one power switching element. The electrosurgical generator further includes a zero voltage switching (ZVS) inducing circuit coupled to the power converter at a switching node, the ZVS inducing circuit including an inductor having an inductance which is greater than the inductance value of the power inductor of the at least one power switching element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.