Differential load detecting method for detecting a wireless power receiver in wireless power network and wireless power transmitter
First Claim
1. A differential load detection method for detecting a wireless power receiver in a wireless power network, the differential load detection method comprising:
- transmitting first detection power for detecting the wireless power receiver;
transmitting second detection power when an impedance variation greater than a first threshold value and equal to or less than a second threshold value is detected; and
scanning for an advertisement signal according to the transmission of the second detection power from the wireless power receiver.
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Accused Products
Abstract
A differential load detection apparatus and method are provided for detecting a wireless power receiver in a wireless power network. The differential load detection method includes transmitting first detection power for detecting the wireless power receiver, transmitting second detection power when an impedance variation greater than a first predetermined threshold value and equal to or less than a second threshold value is detected, and waiting for a reception of an advertisement signal according to the transmission of the second detection power from the wireless power receiver.
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Citations
16 Claims
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1. A differential load detection method for detecting a wireless power receiver in a wireless power network, the differential load detection method comprising:
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transmitting first detection power for detecting the wireless power receiver; transmitting second detection power when an impedance variation greater than a first threshold value and equal to or less than a second threshold value is detected; and scanning for an advertisement signal according to the transmission of the second detection power from the wireless power receiver. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A wireless power transmitter for detecting a wireless power receiver in a wireless power network, the wireless power transmitter comprising:
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a power transmitting unit configured to transmit first detection power or second detection power for detecting the wireless power receiver; and a controller configured to control the power transmitting unit to transmit the second detection power and to scan for an advertisement signal according to the transmission of the second detection power when an impedance variation greater than a first threshold value but equal to or less than a second threshold value is detected during the transmission of the first detection power in the power transmitting unit. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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Specification