filament switch的意思|示意

The heater is composed of a housing, a heating filament arranged in the housing, and a switch, a transformer and a power plug sequentially connected with the heating filament.

加热器由外壳，设于外壳内的加热丝，以及与加热丝依次连接的开关、变压器、电源插头构成。

The switch mode regulated power supply using self - adjusting technique is introduced. In TV transmitter, it is used to the large power transmit-ting tubes with variable voltage for cold filament.

介绍了一种采用自适应技术的开关型稳压电源，对电视发射机大功率发射管的冷态灯丝平滑上电压，有效提高了发射管的使用寿命。