介紹了恒溫電熱毯的硬件及其模糊控制系統，提出了過零觸發技術，使得在調節溫度
過程中產生的高次諧波大為減少。模糊控制系統以溫度偏差及其變化量為輸入，加熱功率為輸出，通過模糊控制算法，達到電熱毯溫度自動調節的目的。
關鍵詞：模糊控制；過零觸發；低輻射；電熱毯
Design of Lower-Radiation and Constant Temperature Electric Carpet Based on Fuzzy Control PENG Xi-jun ，YANG Rui-feng Abstract：The hardware and its fuzzy control system of constant temperature electric carpet are introduced. To reject higher harmonic produced in process of temperature adjusting, a zero-crossing triggering technic is put forward. In fuzzy control system, the input signals are temperature error and its change rate, and heating power is output signal. Through fuzzy control algorithm, the purpose of automatic adjustment of temperature is achieved.
Key words：fuzzy control；zero-crossing triggering；lower-radiation；electric carpet