Output of Triangle Wave and Square Wave Voltage-controlled Oscillation Circuit Composed of LF356

Published:2011/9/4 7:28:00 Author:Joyce | Keyword: Output , Triangle Wave, Square Wave , Voltage-controlled , Oscillation | From:SeekIC

This is the voltage-controlled oscillation circuit of triangle wave and square wave output composed of LF356. Voltage controlled oscillation circuit can be used as PLL circuit and scanning oscillation circuit. The circuit constitutes of polarity commutation circuit VT1, inverse integrator A2 and lag comparator A3 etc. VT1 constitutes a polarity commutation circuit, which works by switch. A1 can work in phase and inverse alternatively. When VT1 breaks over, A1 forms an inverting amplifier; when it cuts off, A1 forms an inphase amplifier. Integral circuit A2 can integrate voltage 士Uc which have been polarity commutated.



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