4 research outputs found
A novel single-capacitor single-operational-amplifier sinusoidaloscillator
The well known operational amplifier based Schmitt-trigger square wave generator is shown to behave as a sinusoidal oscillator at relatively high frequencies. This is attributed to the widely ignored frequency-dependence characteristic of the differential gain of the operational amplifier. Experimental results are in excellent agreement with theoretical prediction
A novel single-capacitor single-operational-amplifier sinusoidaloscillator
The well known operational amplifier based Schmitt-trigger square wave generator is shown to behave as a sinusoidal oscillator at relatively high frequencies. This is attributed to the widely ignored frequency-dependence characteristic of the differential gain of the operational amplifier. Experimental results are in excellent agreement with theoretical prediction
Digitally programmable grounded capacitor oscillators usingoperational amplifier poles
New simple sinusoidal oscillator circuits are proposed. Each circuit uses an internally compensated operational amplifier, a resistor and a capacitor. The feasibility of obtaining digitally programmable sinusoidal oscillation is studied and a new digitally programmable capacitorless resistorless sinusoidal oscillator is develope
Digitally programmable grounded capacitor oscillators usingoperational amplifier poles
New simple sinusoidal oscillator circuits are proposed. Each circuit uses an internally compensated operational amplifier, a resistor and a capacitor. The feasibility of obtaining digitally programmable sinusoidal oscillation is studied and a new digitally programmable capacitorless resistorless sinusoidal oscillator is develope