Two zener diode back to back??

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

 

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.

 

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.

 

[Ken Smith]

In article <1124677904.373573.90240@g44g2000cwa.googlegroups.com>,
<mingyan_chow@yahoo.com.hk> wrote:

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

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.

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kensmith@rahul.net forging knowledge