Broad-band Sine Wave Voltage-controlled Oscillator Circuit Composed of LF356N

Published:2011/6/6 0:21:00 Author:Joyce | Keyword: Broad-band , Sine Wave , Voltage-controlled Oscillator | From:SeekIC

As shown in the figure is the broad-band sine wave voltage-controlled oscillator circuit. The oscillation frequency of the circuit depends on integration resistor R and capacitance C. The oscillator constitutes of resistance R controlled by an external voltage VC. The variable resistance in the circuit uses optical coupler PC1 and PC2, and the rectification circuit is detected by average value. The actual operating frequency of the circuit is above dozens of Hertz. In addition, the characteristics of control voltage VC depends on the characteristics of the photoelectric coupler used



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