如果您使用函数发生器,您也许偶尔会需要比发生器提供的频率还要高的频率下实现正弦波输出。如果您的函数发生器还能产生三角波输出,那么您可以用倍频器把发生器的可用频率扩展一倍。以前出版的设计实例介绍了一种三角波驱动的倍频电路,它采用的运算放大器可产生限制在大约20kHz的输出频率(参考文献1)。 If you use a function generator, you may occasionally need to produce a sine wave output at a frequency that is even higher than that provided by the generator. If your function generator also produces a triangular wave output, you can double the available frequency of the generator with a frequency multiplier. A previously published design example introduced a triangular-wave-driven frequency multiplier circuit that uses an operational amplifier that produces an output frequency limited to approximately 20kHz (Reference 1).