检波变频器 detector-converter ; converter
谐波变频器 harmonic converter
变频行波管 [电子] frequency converter TWT
谐波变频 harmonic conversion
时变频率滤波 time-variant frequency filtering
可变频宽滤波器 variable-band-width filter
变频器用滤波器 BAIF BAOF BDCF BASF
完美无谐波变频器 Perfect Harmony
音频调变检波器 detector audio modulation
变频器专用谐波滤波器 HTGP
介绍一种采用低压电压型变频器、正弦波滤波器和变频升压变压器构成的低-高式中压变频控制系统。
A kind of medium voltage AC variable frequency control system, which consists of voltage source inverter, sinuous filter and stepup transformer with variable frequency, is introduced.
介绍了斩波内馈调速技术，以及与变频和串级技术的比较。
This paper introduces chop feedback speed regulation technique and compares it with frequency conversion and cascade technique.
同时变频变幅的TFFP锯齿波扫描信号可以灵活地改变系统的扫描范围，进一步提高了系统的解调速度。
While the alterable frequency and scope sawtooth sweep signal for TFFP can neatly change the scanning range of the system, which is more improved the demodulation speed.
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