Suppose the zener diode on the circuit has a breakdown voltage of 10 V. What are the minimum and maximum zener currents? The applied voltage may vary from 20 to 40 V. Ideally, a zener diode acts like ...

There are times when you need to bias a low-current load and simply didn’t want to add another voltage regulator, or where you need a reasonable level of voltage accuracy, so a simple voltage divider ...

A Zener diode is the simplest known type of voltage limiter (Figure 1) As soon as the voltage exceeds the rated voltage of the Zener diode, a current can flow through the diode to limit the voltage.