The amplifier input is a voltage proportional to the photocurrent signal produced by a photodiode, which is irradiated by a modulated light beam at the same chopper frequency.
放大器输入为电压信号，与光敏二极管产生的光电流信号成比例。调制光柱以断路器同样的频率照射光敏二极管。
Meanwhile, the driver had the functions of constant current chopper, index movements frequency and sine wave equal-breadth even subdivision.
驱动器具有恒流斩波、指数升降频和正弦波等幅均匀细分的功能。
With the shift-phase modulated multiple chopper circuit, the equivalent switch frequency can be improved, so it can be used in large power occasion.
采用移相调制的多重斩波电路，可以提高等效开关频率，因此可应用在中大功率场合。
It consists of high frequency PWM boost chopper and digitalized SPWM inverter. It features IGBT multiple protection and special design for the protection of locomotive from EMI.
该电源由PWM高频升压斩波器及数字化控制SPWM逆变器组成，具有IGBT多重保护及机车抗emi特殊设计。
What this means is that an electronic chopper, which translates energy to a different portion of the frequency spectrum, modulates the load.
意思就是说一个电子斩波器将负载调制，它会传递能量给频谱的另一部分。
The article mainly the speed governing technology with internal feedback high frequency chopper wave, including its working principle, function and feature, and application to Industry control.
简介几种常用电机调速方式。对应用较好的内反馈高频斩波调速技术的工作原理、功能与特点，以及在工业控制中的应用情况予以介绍。
The circuit employs chopper technique which can effectively reduce the low frequency noise and amplify the weak signals.
该电路应用斩波技术，大大降低了低频噪声，实现了对低频微弱信号的放大。
The circuit employs chopper technique which can effectively reduce the low frequency noise and amplify the weak signals.
该电路应用斩波技术，大大降低了低频噪声，实现了对低频微弱信号的放大。
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