High frequency and power-adjustable electronic heating type device and method for operating the same
US12167510B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 19, 2020 |
| Grant date | Dec 10, 2024 |
| Priority date | — |
| Expiry date | Sep 19, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M3/1582
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The subject application provides a portable electronic heating type device with an improved power converter topology configured for receiving a DC input voltage from the power supply and generate an AC output voltage to the heating element. The power converter is based on an inductor, a DC blocking capacitor and only one switching device. Heating power can be adjusted under a pulse-width-modulation mode, a fixed-on-time mode, a fixed-off-time mode or a frequency-modulation mode. The portable electronic heating type device has less switching loss and faster response. Therefore, it can be operated at higher frequency and more compact in size.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.