Abstract
This paper proposes the frequency multiplier consisting of the integral type monostable multivibrator with switched-capacitor (SC) circuit, astable multivibrator and AND gate. As for this frequency multiplier, a stable operation is obtained irrespective of the ratio of multiplier. This ratio of multiplier becomes the largest about 60 only by changing a value of capacitor with the time constant circuit.
Moreover, this ratio is expressed as a simple formula only with circuit parameters. The calculated values of this ratio agree very well with the measured ones.
Furthermore, in this frequency multiplier, the large ratio of multiplier can be obtained by cascading monostable multivibrator. If the input signal repetition is constant in this circuit, the output signal of duty factor 50% can be obtained by transforming SC circuit and adjusting the oscillation frequency of the astable multivibrator. Besides, this frequency multiplier is able to have optional ratio of multiplier m/n (n<m) easily, when 1/n frequency divider is cascaded.
