Pulse frequency multiplier

摘要

An input pulse signal is frequency-divided by a flip-flop. The frequency-divided signal from the flip-flop is used to control charging and discharging of a capacitor so as to generate a triangular wave voltage which has the same period as that of the frequency-divided signal. The triangular wave voltage is supplied to a multiwindow comparator which has a plurality of inverting voltages so as to generate a plurality of pulse signals within one period of the triangular wave voltage.