Skin treatment device and control method therefor

Abstract

A skin treatment device according to the present disclosure includes: a radio frequency (RF) generator for generating RF energy; an electrode for transmitting the RF energy to a skin tissue of a user; a measurement unit for measuring a forward RF voltage caused by the RF energy and a reverse RF voltage caused by the RF energy reflected to the RF generator; and a controller for calculating skin impedance of the user and RF output power efficiency based on the measured forward RF voltage and reverse RF voltage, and controlling outputs of the RF generator based on the calculated skin impedance and RF output power efficiency.

Dependencies are inferred from the claim text.