Abstract: A kind of temperature controlling device of heating element and method thereof detect the actual temperature of heating body of the heating element, and calculate the descending gradient and frequency of temperature based on the detected actual temperature. The norm signal is formed based on the actual temperature, descending gradient and frequency of the temperature to control the switch power as to achieve the split second control for the electric power of the heating element.

Abstract: A method for quick temperature compensation for an electric soldering iron is provided. The electric soldering iron includes a static temperature control circuit and a dynamic temperature control circuit. Amount of the static temperature control mainly depends on a temperature setting signal, a real-time temperature detecting signal and a temperature additional signal, while the dynamic temperature control is made on the basis of Kalman digital filter principle. During the dynamic temperature control, a differentially amplified temperature regulation and control signal is identified by a heat transfer function of the soldering iron head, and an temperature additional compensation amount is calculated and output, only when the heat transfer function of the soldering iron head is conformed.

Abstract: A kind of temperature controlling device of heating element and method thereof detect the actual temperature of heating body of the heating element, and calculate the descending gradient and frequency of temperature based on the detected actual temperature. The norm signal is formed based on the actual temperature, descending gradient and frequency of the temperature to control the switch power as to achieve the split second control for the electric power of the heating element.