工作开关 meaning in English

operating switch
play switch

From those points , this paper summarizes a evaluation method for converters based on the employed switch intensity and efficiency , and evaluates a few kinds of converters by this means
在此基础上总结了基于工作开关强度和工作开关利用率的变换器评估方法，并以此方法对各种变换器进行了评估。
It works at high frequency with a selectable pin outside ; the working frequency is fixed at 640k / 1 . 2mhz . so far as the output signal of the single - chip ic is concerned , the maximum time proportion of its high level is 88 percent , but the minimum one is 10 percent
该控制器为pwm脉冲宽度调制方式;电路正常工作温度范围为- 20oc 85oc ;工作开关频率根据外围电路输出电压需要为640k / 1 . 2mhz可选;输出信号的最大占空比为90 % ,最小占空比为10 % ,芯片主要应用于lcd电压电源管理设备。