Simple Zener diode voltage regulation

511

13:11:00

This is a demonstration of voltage regulation capability of a Zener diode.
The circuit is fed by a constantly varying voltage source. The voltage is too high, so you can see the LED blowing.
Toggle the switch to stabilize voltage, to start the Zener working. Now the voltage is quite stable and the LED is happy.

published 11 years ago

dmscjf9903

11 years ago

led boom!!

AVII

11 years ago

What does it shows ?? Can you explain ?

lenzrulz

11 years ago

LED needs 500ohm resistor.

bitronics

11 years ago

Updated the description.

AVII

11 years ago

Imho!.

thebugger

11 years ago

That's how they basically work. But look at the current through the zener. It's varying - a lot. If you minimize that variation too the voltage stabilization will increase - again a lot. From 200mV ripple it may fall to 1uV ripple.

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