SPWM modulation is the important way to improve the invert power supply voltage efficiency and reduce the harmonic component.
SPWM调制是提高逆变电源电压利用率和减少谐波分量的重要方法。
A practical calculation method is given. With the parameters of the impulse circuit the wave front and tail and the voltage efficiency can be calculated.
文中给出实用计算法，以便根据冲击回路参数估算操作波的波头、波尾和电压效率。
The electrolysis efficiency is high when voltage grad is high and original concentration is low.
从电解效率来说，电压梯度越高去除率越高，初始浓度越高去除率越低。
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