公开(公告)号：US20240206017A1

公开(公告)日：2024-06-20

申请号：US18539966

申请日：2023-12-14

Applicant: SEMES CO., LTD.

Inventor： Sanghyon JEON ,  Ikho LEE ,  Dongok AHN

IPC: H05B1/02

CPC classification number: H05B1/0288

Abstract: A temperature control apparatus includes a heater of which a temperature increases in response to receiving power, a power source supplying alternating current (AC) power to the heater, a temperature sensor sensing the temperature of the heater and outputting a measured temperature value, and a controller controlling the power supply to the heater so that the heater follows a set temperature profile, wherein the controller supplies the power to the heater for first one control period in a variable period consisting of a plurality number of times of control periods (on duty), and stops the power supply to the heater during remaining control periods until the variable period is finished (off duty).