R 1 ‘s voltage drop limits the zener diode’s voltage value that the circuit measures. If R 1 ‘s value is 1Ω, then the voltage drop across it is insignificant and, in millivolts, is equal to the zener ...

We have all had difficulty testing diodes in-circuit. Most DMM’s have a diode Vf function that measures forward drop, but what is the normal voltage drop?

We have seen, in the previous section, that we can get a pretty decent voltage reference using a biased Zener diode circuit for a relatively reasonable cost. However, in this modern age of single ...

The circuit is simple enough: it uses a capacitor, a resistor, and a pair of diodes (one of them a zener diode). He uses this basic circuit to drive simple regulators with input and output filter ...