Voltage clamping circuit with high power zener diode?
Apr 26, 2025 · No. A zener diode alone will not work. If the voltage exceeds the zener voltage, the zener diode will die a quick death followed by the gauge. You need to put a resistor ahead of …
LTSpice zener diode 3V model - All About Circuits
May 26, 2024 · If you don't want to edit the standard.dio file you can get a reasonable 3V zener model thus :- Place a diode symbol on your schematic. Click 'Pick new diode'. Click on an …
Identifying small, glass diodes? | All About Circuits
Jun 24, 2024 · Looking for advice on how to correctly identify those tiny, glass, red/black diodes. Like these: I have a couple small projects where I need a zener, I have several suspects but …
Zener diode maximum reverse current | All About Circuits
Your 1N4733A zener diode is 5.1V (plus or minus 5%) only when its current is the "test " current of 49mA and the zener diode is cooled somehow to 25 degrees C. Less current reduces its …
protecting a p channel mosfet gate with a zener. - All About Circuits
Oct 2, 2023 · Have done this in the past lots of times with N channel. Just want to make sure im thinking about this correctly for a p channel Is it done the same way? The cathode of the zener …
Zener knee current?? - All About Circuits
Jul 12, 2011 · Izk is the knee current of the zener diode. When the current flowing into the zener is larger than the specified knee current, it will permit significant current flow in the reverse …
simulate a noise source LTspice - All About Circuits
Dec 28, 2024 · Trying too different circuits producing noise, I get 0 Volts output running the circuits in LTspice. One circuit obtains noise from a Zener diode, and the other one from the …
Dynamic resistance of zener diodes | All About Circuits
Oct 25, 2016 · I am trying to give myself a physical explanation of the dynamic resistance in zener diodes. This is what I made up: We know that zener's dynamic resistance Zzt is verry large for …
is Zener diode-based voltage divider a good solution for gate …
Dec 22, 2024 · Hello, I have used a Zener diode-based voltage divider to create a negative bias for a gate driver supply but I noticed that the series resistor is getting...
Protecting a BJT PNP from emitter-base reverse breakdown
Dec 31, 2024 · A diode from base to emitter will protect against excess reverse bias. The diode arrow direction would be opposite the direction of the base-emitter junction arrow.