Main differences: 1. Different functions: amplifiers are used to amplify electrical signals, while oscillators are used to generate alternating current signals; 2. Different basic structures: The basic structure of amplifiers includes input terminals, output terminals and amplification terminals. circuit, and the basic structure of an oscillator includes an oscillation circuit, an amplifier and a feedback network; 3. Different uses: Amplifiers are usually used to amplify audio, video and radio frequency signals, etc., while oscillators are usually used to generate clock signals, radio frequency signals and audio signals. wait.
Amplifiers and oscillators are two different electronic devices with different functions and applications.
1. Different functions
The main function of the amplifier is to amplify the amplitude of the electrical signal and amplify the weak electrical signal to a sufficient level for subsequent processing. . Amplifiers are usually used in audio amplification, power amplification and other occasions, and are an essential part of electronic equipment.
The function of the oscillator is to generate alternating current signals, which can oscillate autonomously within a certain frequency range. Common applications include radio transmitters, ringing circuits, clock circuits, etc. An oscillator is an energy conversion device that can convert DC power into AC power with a certain frequency. The circuit it forms is called an oscillation circuit. The oscillator consists of an amplifier and a feedback circuit. The amplifier increases the amplitude of the input signal, and the feedback circuit reintroduces a portion of the output signal to the input of the amplifier, causing the system to self-oscillate.
2. Different basic structures
Amplifier: The basic structure of an amplifier includes an input end, an output end and an amplification circuit. Amplification circuits can be transistors, operational amplifiers, tubes, etc. Different amplification circuit structures are selected according to different application requirements.
Oscillator: The basic structure of an oscillator includes an oscillation loop, amplifier and feedback network. The oscillation loop consists of a resonant circuit, an amplifier used to provide sufficient gain to maintain oscillation, and a feedback network used to re-input a portion of the output signal to the input.
3. Different uses
Amplifier: An amplifier is an electronic device used to amplify the input signal to a higher amplitude to increase the signal's Intensity or power. Amplifiers are commonly used to amplify audio, video, radio frequency signals, etc.
Oscillator: An oscillator is an electronic device used to generate a continuous periodic signal, that is, an oscillating signal. Oscillators are commonly used to generate clock signals, radio frequency signals, audio signals, etc.
In general, amplifiers and oscillators are functionally different. Amplifiers are used to amplify electrical signals, while oscillators are used to generate alternating current signals.
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