what is an oscillator used for
An electronic oscillator is an electronic circuit that produces a periodic, oscillating electronic signal, often a sine wave or a square wave.Oscillators convert direct current (DC) from a power supply to an alternating current signal. They are widely used in many electronic devices.he most common form of linear oscillator is an electronic amplifier such as a transistor or op amp connected in a feedback loop with its output fed back into its input through a frequency selective electronic filter to provide positive feedback.