增益调制器作为功率因数校正电路的核心电路，通过控制输入电流来得到一个高的功率因数。
As the heart of the power factor correction circuit, the gain modulator gets a high power factor by controlling the input current.
所以解决电光调制器增益控制和偏置控制的问题成为电光调制的关键技术之一。
Therefore, to solve the electro-optic modulator gain control and offset control of the issue has become one of the key technologies for electro-optic modulator.
输入信号作用于一个以模拟调制器为基础的专有可编程增益前端。
The input signal is applied to a proprietary programmable gain front end based around an analog modulator.
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