Classification of oscillators

Classification of oscillators:

Based on the output waveform:

The oscillators are classified as:

• Sinusoidal oscillator
• Non-sinusoidal oscillator

Based ON the circuit components:

• RC oscillators
• LC oscillators
• Crystal oscillates

Based on the range of operating frequency:

• Low-frequency oscillators (20 Hz to 100-200 KHz) also called as audio frequency oscillates.
• High-frequency oscillator (200 kHz – 300 to gigahertz) also called as ratio frequency oscillators.

Based on whether the feedback is used or not:

• Feedback oscillator
• Non –feedback oscillator
• In this oscillator use the negative resistance region on the characteristics of the device
  e.g. UJT relaxation oscillator.