Wits Co., Ltd.

Jung Ho Son

Seung Won Park

Eun Young Shin

Dae Sik Kim

Keun Soo Ha

Yun Ki Hong

A wireless power transmitter includes a converter, a resonator, and a controller. The converter includes switching elements forming a bridge circuit, and is configured to output an alternating current (AC) voltage in response to control signals. The resonator includes a resonant capacitor and a resonant coil, and is configured to receive the AC voltage to wirelessly transmit power. The controller is configured to perform a first mode operation in which a duty of the control signals is fixed, a frequency of one of the control signals is varied and the control signals are output, and a second mode operation in which a frequency of the control signals is fixed, a duty of one of the control signals is reduced and the control signals are output.

Growing community of inventors

Suwon-si, South Korea

Jung Ho Son