APPARATUS FOR DRIVING A HEATING LINE WHICH SHIELDS AN ELECTRIC FIELD AND A MAGNETIC FIELD IN BEDDING, CAPABLE OF PROTECTING A DRIVING CIRCUIT WITHOUT AN ADDITIONAL TEMPERATURE SENSOR

摘要

PURPOSE: An apparatus for driving a heating line which shields an electric field and a magnetic field in bedding is provided to prevent a fire by installing a temperature sensor line in the heating line.;CONSTITUTION: A safety circuit(A) blocks power supply if a temperature rises over a preset value. An output circuit(B) controls power supply according to the temperature change. A temperature detecting circuit(C) generates a temperature detection voltage. A heating unit(D) detects the temperature change about the heating line. An overheat/short detecting circuit(J) detects the overheat of short of the heating unit.;COPYRIGHT KIPO 2011