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 the zener …
is Zener diode-based voltage divider a good solution for gate driver ...
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 p channel mosfet gate with a zener. - All About Circuits
Oct 2, 2023 · The cathode of the zener on the gate and the annode on the source? Since the P-MOSFET is reverse polarity from an N-MOSFET with a negative Vgs to turn it on, you put the Zener …
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 arbitrary low …
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 voltage and …
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 direction. Izm is …
voltage drop in zener diode - All About Circuits
Sep 4, 2014 · Zener diodes must be protected by an external resistor in all cases or the user risks a blown zener diode. I disagree with Wayneh to a small degree, the zener voltage varies with the zener …
Voltage Reference vs Power supply voltage help - All About Circuits
Feb 15, 2025 · The Zener diode as a reference is like a seesaw at the balance point where voltage and current are in a stable configuration. If you try to draw current away from the Zener diode you will …
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 reverse-biased …
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.