| 摘要 |
PURPOSE: The automatic power source circuit breaker of a temperature controller is provided to prevent a heating line from being overheated by automatically blocking drive power, which is provided to the heating line of a mat, when the disorder of a control device occurs. CONSTITUTION: A controlling unit(10) outputs a power-on control signal to a protection circuit unit(30). A power supply unit(20) generates a first drive power source for driving the controlling unit and a second drive power source for heating the heating line of a mat. The power supply unit is composed of a switching regulator unit and a linear regulator unit in which a switching mode power supply mode are applied. The protection circuit unit blocks an AC power source which is provided to the heating line of the mat through a connection unit(50). A temperature measuring unit(40) detects the temperature of the heating line of the mat and offers the temperature to the controlling unit. |
