Birch, Stewart, Kolasch & Birch, LLP
Charging system that detects receiver standard and adjusts charging with switches and selection of capacitors
The present disclosure relates to a wireless power transfer method, a wireless power transmitter and a wireless charging system in a wireless power transfer field. That is, a wireless power transmitter configured to transfer power to a wireless power receiver in a wireless manner includes a power transfer unit configured to transmit power to the wireless power receiver in the wireless manner, a circuit unit having a plurality of capacitors electrically connected to the power transfer unit, and configured to support each of a plurality of frequencies by changing the electric connection of the capacitors, and a controller configured to detect a communication standard that the wireless power receiver supports, and control the electric connection of the capacitors such that the circuit unit operates at a frequency corresponding to the detected communication standard.
LG ELECTRONICS INC.
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Jihyun Jeongkyo Jaesung Jinmoo Homan
Lee Seo Lee Park Park