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Two zener diode back to back??

Discussion in 'Electronic Design' started by [email protected], Aug 22, 2005.

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  1. Guest

    I am curious a circuit which put two zener diode (50V) back to back
    (positive to positive) and a 10K resistor in between. One end is
    connected to 100V AC, the other end is connected to ground. It claim
    that it could smooth the output voltage. How does it function??? Expert
    please advise. Thanks
  2. Guest

    I found this as a zener limiter. I am curious if it has any different
    for being connected + to + or negative to negative. sorry for sound
    like a electronic novice.
  3. Ken Smith

    Ken Smith Guest

    You didn't say where this 100V AC comes from. The circuit draws a current
    from this source. Depending on the impedance of the source, it may limit
    the swing a bit.
  4. Guest

    Thanks for your reply. Actually, the 100V AC is from the emitter output
    of a transmitter. The circuit is a small AC signal drive the
    transistors in order to amplify to a larger AC signal. That Zener
    limiter is connect to the ouput of that amplified AC signal and ground.
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