Patent ID: 9130409
Filing Date: 2015-09-08
Classification: H02J,H03J

Abstract:
1. In a wireless energy transmission system including a wireless energy receiving device and a wireless energy transmitting device, at least one of the wireless energy receiving device and the wireless energy transmitting device comprising: a first oscillator configured to output an in-phase (I) signal; a second oscillator configured to output a quadrature-phase (Q) signal having a 90-degree phase difference from the I signal, wherein each of the first and second oscillators comprises a resonator having at least one inductor and at least one capacitor, and a current changing block connected to the at least one inductor and configured to change an amount of current flowing through the at least one inductor; and a monitor configured to monitor a frequency of at least one of the I and Q signals and control the current changing block according to a monitoring result.