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    why common emitter configuration is most widely used as an amplifier

    hi...
    why common emitter configuration is most widely used as an amplifier

    •   Alt11th February 2013, 19:36

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    Re: why common emitter configuration is most widely used as an amplifier

    because it has suitable bandwidth and gain. other configurations only have bandwidth or gain, but common emitter has both of them.



    •   Alt11th February 2013, 19:41

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    Re: why common emitter configuration is most widely used as an amplifier

    Another important property if compared with common base: Much higher input resistance.



    •   Alt11th February 2013, 21:12

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    Re: why common emitter configuration is most widely used as an amplifier

    • Common base amplifier: Useful voltage gain, but no current gain.
    • Common collector amplifier: Useful current gain, but no voltage gain.
    • Common emitter amplifier: Useful voltage gain and useful current gain.



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    Re: why common emitter configuration is most widely used as an amplifier

    both voltage and power gain



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