Wireless power transmission method for preventing frequency interference
First Claim
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1. A wireless power transmission method for preventing frequency interference in a wireless power system including a wireless power charger and an adjacent-frequency-using apparatus, the method comprising:
- generating, by the vehicle wireless charger, a power signal, which is a low frequency signal;
transmitting, by the vehicle wireless charger, the power signal through a first antenna while the vehicle wireless charger is operating;
generating, by the adjacent-frequency-using apparatus, a power transmission restriction signal to cause the vehicle wireless charger to temporarily stop operating;
transmitting, by the adjacent-frequency-using apparatus, the power transmission restriction signal; and
searching, by the adjacent-frequency-using apparatus, the low frequency signal using a second antenna, without signal interference, while the operation of the vehicle wireless charger is temporarily stopped.
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Abstract
The present invention relates to a wireless power transmission method for preventing frequency interference, and more particularly, to a wireless power transmitter and a wireless power transmission method for preventing frequency interference that flexibly controls an operation of the wireless power transmitter in order to avoid signal interference and collision between different apparatuses using frequencies adjacent to a frequency band of a power signal transmitted from the wireless power transmitter.
9 Citations
8 Claims
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1. A wireless power transmission method for preventing frequency interference in a wireless power system including a wireless power charger and an adjacent-frequency-using apparatus, the method comprising:
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generating, by the vehicle wireless charger, a power signal, which is a low frequency signal; transmitting, by the vehicle wireless charger, the power signal through a first antenna while the vehicle wireless charger is operating; generating, by the adjacent-frequency-using apparatus, a power transmission restriction signal to cause the vehicle wireless charger to temporarily stop operating; transmitting, by the adjacent-frequency-using apparatus, the power transmission restriction signal; and searching, by the adjacent-frequency-using apparatus, the low frequency signal using a second antenna, without signal interference, while the operation of the vehicle wireless charger is temporarily stopped. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification