Samsung patents circuit design for wireless power transfer
Samsung has been granted a patent for a specific circuit layout used in wireless power transmission. The design connects a receiving coil to a transmitting coil using a series of capacitors and an inductor to stabilize the voltage and current flow.
In the filing’s own words
A device and method for providing wireless power transmission in an electronic device are provided. To connect a transmitting coil with a receiving coil of the electronic device, a constant voltage supply unit may be configured such that a first capacitor, an inductor, and a second capacitor are arranged to connect an output terminal of the receiving coil and an input terminal of the transmitting coil in series, and a third capacitor may be arranged between the inductor and the second capacitor to connect the inductor and the second capacitor to the ground.
What exactly they claim (claim 1)
1. An electronic device comprising: a reception coil configured to output a first alternating current (AC) inducted from a first magnetic field; a constant voltage supply unit comprising circuitry configured to supply a constant voltage by the first AC output by the reception coil; and a transmission coil configured to generate a second magnetic field for wireless power transmission by a second AC including a constant current corresponding to the constant voltage supplied from the constant voltage supply unit, wherein the constant voltage supply unit includes a first capacitor, an inductor, and a second charging scheme configured to connect an output terminal of the reception coil and an input terminal of the transmission coil in series and to have a third capacitor to connect a ground and a point between the inductor and the second capacitor.
Facts
- Company
- Samsung (Samsung Electronics Co., Ltd.)
- Official title
- Device and method for wireless power transmission in electronic device
- Patent number
- US12763607B2
- Application number
- 19239263
- Filed
- Jun 16, 2025
- Granted
- Oct 13, 2026
- Inventors
- 9
- Claims
- 20
Classified under
H02J 50/12 Electricity & electronicsH02J 50/70 Electricity & electronicsH01F 27/24 Electricity & electronicsH01F 27/28 Electricity & electronicsMore from Samsung in Batteries & energy
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Summaries are simplified from the filing’s own abstract and first claim. A patent filing is not a product announcement.
Patent data and drawings: U.S. Patent and Trademark Office (USPTO). Nebula is not affiliated with or endorsed by the USPTO.