Fixed voltage ... the Regulator IC 7805 to give 9 volt regulated output. Normally the pin2 of the regulator IC is connected to the ground. Here it is connected to a 3.9 volt Zener diode. So the output ...

For the longest time, Zener diode regulators have been one of those circuits that have been widely ... “Zener Diode makes for a Lousy Regulator” that clarifies the misconceptions behind ...

In a fashion similar to using stacked Zeners for voltage regulation, this LED circuit cleverly combines voltage reference and voltage indication. Fig 1. This voltage regulator circuit (a ...