Okay, I'm building a serial link cable for my TI calculator and the plans call for two zener diodes. What exactly is a zener diode? Is that just a regular diode, because I have some diodes, and if ...

Don’t jump to a Zener diode next time you need a low-current rail voltage; instead, consider using a voltage reference. About the Author . Robert Hanrahan | Sr. Member of Technical Staff.

I need a circuit to limit the voltage across some dissipation limited devices. It must: limit the voltage to a maximum of 1.5 V, have symmetrical limiting, be capable of accepting a current of 2 A, ...

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 ...