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US 10,097,162 B2Granted
Wireless charger receiver-side communication interference elimination
AssigneeNXP B.V.
InventorsPatrick Niessen, Rene Geraets
Life of this patent
Estimating the term…
Abstract
Embodiments of an apparatus are disclosed. In an embodiment, a power receiver unit is disclosed. The power receiver unit includes a power pick-up unit, a communication modulator, and a filter. The power pick-up unit receives a wireless power signal. The communication modulator applies a modulation to the received wireless power signal. The filter suppresses a load signal from a load of the wireless charge receiver to prevent interference with the modulation.
Claims19
A wireless power receiver unit comprising:
- a power pick-up unit configured to receive a wireless power signal;
- a communication modulator to apply a modulation to the received wireless power signal;
- and
- a filter configured to suppress a load signal in the 1 to 2 kHz frequency band from a load of the wireless power receiver unit to prevent interference with the modulation.
1 more element
A method for suppressing wireless power signal interference, the method comprising:
- receiving a wireless power signal during a power mode;
- modulating the received wireless power signal during a communication stage, wherein the communication stage occurs during the power mode;
- and
- filtering a load signal in the 1 to 2 kHz frequency band to prevent interference affecting the modulation.
1 more element
A wireless power system comprising:
- a power sending unit configured to transmit a wireless power signal;
- and
- a power receiver unit configured to receive the wireless power signal and modulate the received power signal to communicate with the power sending unit, wherein the power receiver unit comprises:
- a filter configured to suppress a load signal in the 1 to 2 kHz frequency band to prevent interference in the modulated wireless power signal;
- a communication modulator to apply a modulation to the received wireless power signal;
- and
- a receiver communications and control unit configured to send input to the communication modulator to manage the signal modulation process.
4 more elements
Dependencies are inferred from the claim text.