| 摘要 |
<p>A method of controlling the temperature of an electrical heating jug comprising the steps of: providing a temperature sensor , a microprocessor , and a controlling circuit in the electrical heating jug; detecting the temperature of the electrical heating jug by the temperature sensor, and transmitting the detected signal to the microprocessor. When the temperature is lower than a predetermined threshold, a signal of starting heating is sent by the microprocessor to the controlling circuit, and when the temperature is equal to or higher than a predetermined threshold, a signal of stopping heating is sent by the microprocessor to the controlling circuit. The microprocessor can compare the actual temperature with the predetermined threshold, and calculate the rate of change of the temperature. According to actual temperature and the rate of change of the temperature, the microprocessor can thereby determine the heating time for the power supply of the electrical heating jug, and complete precisely controlling of the heating time.</p> |
