electronic amplifier
Sign in to savethumb|A McIntosh Laboratory|McIntosh stereo audio amplifier with output power of 50 watts per channel used in home component audio systems in the 1970s.
Article
31 sectionsContents
- History
- Vacuum tubes
- Transistors
- Theory of Operation
- Properties
- Negative feedback
- Categories
- Active devices
- Power amplifiers
- Operational amplifiers (op-amps)
- Distributed amplifiers
- Switched mode amplifiers
- Negative resistance amplifier
- Applications
- Video amplifiers
- Microwave amplifiers
- Musical instrument amplifiers
- Voice amplifiers
- Classification of amplifier stages and systems
- Common terminal
- Unilateral or bilateral
- Inverting or non-inverting
- Function
- Interstage coupling method
- Frequency range
- Example amplifier circuit
- Notes on implementation
- Special types
- See also
- References
- External links
thumb|A McIntosh Laboratory|McIntosh stereo audio amplifier with output power of 50 watts per channel used in home component audio systems in the 1970s.
thumb|Amplification means increasing the amplitude (voltage or current) of a time-varying signal by a given factor, as shown here. The graph shows the input v_i(t) (blue) and output voltage v_o(t) (red) of an ideal linear amplifier with an arbitrary signal applied as input. In this example the amplifier has a voltage gain of 3; that is at any instant v_o(t) = 3v_i(t)\,