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  2. Bridged and paralleled amplifiers - Wikipedia

    en.wikipedia.org/wiki/Bridged_and_paralleled...

    Representative schematic of a paralleled amplifier configuration. A paralleled amplifier configuration uses multiple amplifiers in parallel, i.e., two or more amplifiers operating in-phase into a common load. In this mode the available output current is doubled but the output voltage remains the same. The output impedance of the pair is now halved.

  3. File:Op-Amp Non-Inverting Amplifier.svg - Wikipedia

    en.wikipedia.org/wiki/File:Op-Amp_Non-Inverting...

    A circuit diagram of a non-inverting amplifier made using an operational amplifier. = (+) Date: 26 January 2009: Source: Own work ... Description=A circuit diagram of ...

  4. Amplifier - Wikipedia

    en.wikipedia.org/wiki/Amplifier

    An amplifier, electronic amplifier or (informally) amp is an electronic device that can increase the magnitude of a signal (a time-varying voltage or current). It is a two-port electronic circuit that uses electric power from a power supply to increase the amplitude (magnitude of the voltage or current) of a signal applied to its input ...

  5. Class-D amplifier - Wikipedia

    en.wikipedia.org/wiki/Class-D_amplifier

    There were subsequently rapid developments in MOSFET technology between 1979 and 1985. The availability of low-cost, fast-switching MOSFETs led to class-D amplifiers becoming successful in the mid-1980s. [1] The first class-D amplifier based integrated circuit was released by Tripath in 1996, and it saw widespread use. [2]

  6. Power amplifier classes - Wikipedia

    en.wikipedia.org/wiki/Power_amplifier_classes

    This is due to the circuit ability to keep the rail transistors (T2 and T4) in cutoff until a music voltage peak is of a sufficient magnitude to require the additional voltage from the + and - 80 V supplies. Refer to the schematic figure. The class H amplifier can actually be thought of as two amplifiers in series.

  7. File:Amplifier Circuit Small.svg - Wikipedia

    en.wikipedia.org/wiki/File:Amplifier_Circuit...

    This circuit diagram was created with the Electrical Symbols Library. ... Description= Amplifier circuit, inspired by Amplifier Circuit Small.png ...

  8. Operational amplifier - Wikipedia

    en.wikipedia.org/wiki/Operational_amplifier

    Circuit diagram symbol for a representative op amp. Pins are labeled as listed above. An operational amplifier (often op amp or opamp ) is a DC-coupled electronic voltage amplifier with a differential input , a (usually) single-ended output, [ 1 ] and an extremely high gain .

  9. Operational amplifier applications - Wikipedia

    en.wikipedia.org/wiki/Operational_amplifier...

    A non-inverting amplifier is a special case of the differential amplifier in which that circuit's inverting input V 1 is grounded, and non-inverting input V 2 is identified with V in above, with R 1 ≫ R 2. Referring to the circuit immediately above,