Zener Diode Shunt Regulator. However without proper components this circuit can be far more inefficient than a linear regulator. The simplest shunt regulator is made with a resistor and a zener diode.
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This method uses a number of fixed voltage relatively low current regulators at various points around the circuit being supplied. Every diode has a maximum reverse voltage above which it breaks down the properly named reverse breakdown voltage. By passing a small current through the diode from a voltage source via a suitable current limiting resistor r s the zener diode will conduct sufficient current to maintain a voltage drop of vout.
A zener diode differs from normal diodes in that its breakdown voltage is well defined during fabrication and it can revert from the breakdown region.
Zener diodes can be used to produce a stabilised voltage output with low ripple under varying load current conditions. The zener diode regulator. The zener diode shunt regulator when you know the level of the supply voltage and you have a small load using a zener diode as a regulator can be a great option. The simplest shunt regulator is made with a resistor and a zener diode.
