T-type LCL resonant converter and its soft switching modulation method under full power range
US12149168B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 20, 2024 |
| Grant date | Nov 19, 2024 |
| Priority date | — |
| Expiry date | Mar 20, 2044 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B70/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A T-type inductor-capacitor-inductor (LCL) resonant converter and its soft switching modulation method under a full power range. A full bridge inverter circuit is provided at a primary side of a T-type inductor-capacitor-inductor (LCL) resonant converter. The full bridge inverter circuit includes four metal-oxide-semiconductor (MOS) transistors. A half bridge rectifier circuit is provided at a secondary side of the T-type LCL resonant converter, and the half bridge rectifier circuit includes two MOS transistors and two equalizing capacitors. The soft switching modulation method for the T-type LCL resonant converter under a full power range is provided based on the T-type LCL resonant converter. The soft switching modulation method requires all switching transistors to operate at a duty cycle of 50% within one cycle. A high-frequency alternating voltage of the primary side has a symmetrical waveform, and a high-frequency alternating voltage of the secondary side has a square waveform.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.