Capacitive-component reducing circuit in electrostatic-type transducer means

摘要: A drive voltage is supplied to a piezoelectric oscillator from an A.C. power source. Attached electrode of the loop circuit in which amplifier having (N+1) amplification factor and electrostatic capacitor are connected series. When capacity set 1/N damping oscillator, current flowing through replaced shared by capacity, thus will not be consumed capacity. Therefore, condition where minimized depends on value only does depend frequency.