Answer Posted / kyle condran
Zener diodes regulate voltage. when placed in reverse bias is will have a constant voltage across it's terminals.
place it in parallel with a load and the load will receive a constant voltage regardless of the current flowing in the circuit as long as there is enough current to drive the diode.
since any parallel circuit will have the same voltage dropped across each parallel leg.
it does not act like a battery, the only component that acts like a battery is a capacitor, in that it can hold a voltage potential, but does not have much staying power when driving a current.
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