| 摘要 |
PURPOSE: A temperature detecting circuit, and a temperature controller equipped with the circuit and a control method thereof in a heating product are provided to detect and control the temperature caused by a locally heating of the heating product by using bimetals and to prevent a fire caused by an arc of the bimetals. CONSTITUTION: A temperature detecting circuit includes a temperature detecting resistor(34), a temperature sensor(32) and a plurality of bimetals(31-1-4). The temperature detection resistor receives a temperature detection control power. The temperature sensor is serially connected to the temperature detecting resistor and is arranged within the heating product with heating lines. The sensor outputs temperature signals by using the temperature detecting resistor and distributing the temperature detecting control power. A plurality of bimetals are connected to the temperature sensor so that they are arranged at local parts of the heating product and turn on or off according to the temperature at the local parts. |
