An oscilletor is an electronic device which convert dc power from the supply into ac power in the load. An oscillator generates a signal with out any external input. These are classified in different ways.
According to the principle involved: the oscillations can occur either through +ve feed back mechanism or negative resistance effect.
According to the type of wave form produce: oscillator can generate either sinwave as output or any waveform other than sinusoidal.
According to the feed back circuit: The feed back circuit may contain resistors or capacitors or may contain inductors or capacitors for frequency varietion.
According to the frequency of output signal: the oscillation can be audio frequency AF oscillator (upto 20Kz) or radio frequency oscillators (upto 300MHz) or ultra high frequency UHF oscillators (upto 3GHz) or microwave oscillators (above 3GHz).
According to the principle involved: the oscillations can occur either through +ve feed back mechanism or negative resistance effect.
According to the type of wave form produce: oscillator can generate either sinwave as output or any waveform other than sinusoidal.
According to the feed back circuit: The feed back circuit may contain resistors or capacitors or may contain inductors or capacitors for frequency varietion.
According to the frequency of output signal: the oscillation can be audio frequency AF oscillator (upto 20Kz) or radio frequency oscillators (upto 300MHz) or ultra high frequency UHF oscillators (upto 3GHz) or microwave oscillators (above 3GHz).
