波形变换分为：非方波转变为方波和方波的频率变化两种。
在放大电路中采用负反馈，而在波形产生和波形变换的电路中则需要采用正反馈。
Negative feedback has been widely used in amplify circuit, but in wave-generating and wave-transforming circuit, it should adopt positive feedback.
电路输出可以作为标准信号，用来校准医用微分器，作生理电脉冲波形变换的研究。
The output of the oscillator can be used as a standard signal for calibration of the differentiator to employ in research on the transformation of physiological pulse wave forms in medical science.
为新一代正弦交流稳压器、电子变压器、交流调压器、同频波形变换器的实现奠定了关键技术基础。
This kind of converter lay the key technical foundation on new type regulated sinusoidal ac power supply, electronic transformer , ac regulator, and wave converter etc.
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