circuit for generating harmonic of a fundamental frequency.

摘要

The circuit has an output transformer whose primary winding centre tapping is connected through a capacitor to a supply voltage terminal. Its secondary side is in the form of an oscillating circuit. The transistors' inputs are connected through their own differentiating circuits to a generator delivering the fundamental frequency pulses. A capacitor of one differentiating circuit has a trimmer for adjustment to the frequency to give better characteristics. A capacitor ensures that both transitors bear the same load. A change of the differentiating component effects mainly the curve shape and thereby the phase condition of the impulses. In this way the unavoidable wandering from the ideal rectangular potential is in effect compensated.