Power amplifier circuit including multiple inverters connected in parallel
US11387794B2 · kind B2 · utility
2Cited by
1References
6Claims
0Family size
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Key dates
| Filing date | Dec 30, 2019 |
| Grant date | Jul 12, 2022 |
| Priority date | — |
| Expiry date | Aug 9, 2040 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B70/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
In each E-class inverter, an internal voltage detection circuit detects an internal voltage of a resonant type power supply circuit or a matching circuit and adjusts a phase of a driving signal of a MOSFET based on a detected voltage. It is thus possible to match a phase of a current voltage of a sine waveform of each inverter and combine power highly efficiently. Since power combining is performed highly efficiently without using a variable capacitor and variable inductor, it is possible to suppress upsizing of elements and achieve downsizing of a power amplifier circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.