Demodulation apparatus and method for wireless power transfer systems
US12362598B2 · kind B2 · utility
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20Claims
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Key dates
| Filing date | May 5, 2023 |
| Grant date | Jul 15, 2025 |
| Priority date | — |
| Expiry date | Nov 30, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K5/24
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An apparatus includes a differential amplifier unit having a first input coupled to a common node of a first coil and a first resonant capacitor, and a second input coupled to a switching node of a bridge, a reference crossing comparator unit having an input coupled to an output of the differential amplifier unit, and a logic unit having a first input coupled to an output of the reference crossing comparator unit and a second input coupled to the switching node of the bridge, wherein the logic unit is configured to generate a signal for retrieving a modulated signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.