A simple question about zener diode

AlwaysNumber1

Joined Dec 4, 2016
52
Hello everyone !
Would like to ask you the following question: the diagram below shows zener diode wave clipper, but exactly does it produce that clipping ? Why the current cannot just flow in the right part of the diagram, where load will be connected ?

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crutschow

Joined Mar 14, 2008
31,112
Why the current cannot just flow in the right part of the diagram, where load will be connected ?
It will until the zener specified breakdown voltage is reached, and then the current goes through the zener.

AlwaysNumber1

Joined Dec 4, 2016
52
It will until the zener specified breakdown voltage is reached, and then the current goes through the zener.
I mean, why the current MUST flow through this diode at all ? The can't it just start flowing to the right part straight away ?

ScottWang

Joined Aug 23, 2012
7,305
The zener diode was designed for clip the light current of load, and it always across on the load, so now do you know where does it located?

AlwaysNumber1

Joined Dec 4, 2016
52
The zener diode was designed for clip the light current of load, and it always cross on the load, so now do you know where does it located?
Yes, now I do
But the diagram does not clearly show it

ScottWang

Joined Aug 23, 2012
7,305
The Vout is for the load, that is a common sense in ee circuit.

AlwaysNumber1

Joined Dec 4, 2016
52
The Vout is for the load, that is a common sense in ee circuit.
Yes, but in the circuit Vout may not depend on the zener diode in any way

crutschow

Joined Mar 14, 2008
31,112
I mean, why the current MUST flow through this diode at all ? The can't it just start flowing to the right part straight away ?
The circuit does not show an output load to the right so it is assumed to be an open circuit, and consequently takes no current.
Thus the only place for current to flow is through the diode, once the voltage has exceeded its zener breakdown point.

ScottWang

Joined Aug 23, 2012
7,305