Induction heating device with improved interference noise elimination and output control functions
US11690141B2 · kind B2 · utility
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20Claims
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Key dates
| Filing date | Nov 28, 2018 |
| Grant date | Jun 27, 2023 |
| Priority date | — |
| Expiry date | Jan 4, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B6/06
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An induction heating device includes a working coil and a resonance capacitor, an inverter that performs a switching operation to supply a resonance current to the working coil, a plurality of snubber capacitors electrically connected to the inverter, a direct current (DC) link capacitor electrically connected to the inverter, and a relay configured to electrically connect one of the plurality of snubber capacitors to the DC link capacitor or the resonance capacitor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.