It chiefly consists of thesingle-chip microcomputer 89C51, digital temperature sensor DS1820, two-way SCR TLC336A andtwo-way SCR drive circuit MOC3041.

• 装置主要由89C51、单片数字温度传感器DS1820、双向可控硅驱动电路MOCm3041和双向可控硅TLC336A等组成。