Zener diode - All About Circuits
4 days ago · Given a zener of 4.7V with a knee current of 1mA and a maximum power dissipation of 1W . Design a regulated power supply to deliver a load current ranging from 0 to 50 mA. …
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 …
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 …
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 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 …
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...
Using a zener as a means to create a voltage supply for an IC
Sep 12, 2023 · It's normal to allow a big multiple of the required current to flow through the resistor and the zener. Eg if the supply to the chip was 100mA then the resistor is calculated to …
How do I make a current source using a zener diode and transistor?
Feb 12, 2019 · With the zener diode connected as shown in figure 4-19, no current will flow until the voltage across the diode is equal to the zener voltage. If the diode is connected in the …
Zener diode as an Off switch in a 12- volt DC circuit?
Mar 7, 2024 · Thus, I was wondering if a simple circuit using a Zener diode 4743 could be used to cut supply to the 3-watt lamp when voltage exceeds 13-volt DC? This might involve tapping …
Zener diodes in parallel - All About Circuits
Feb 5, 2024 · A zener diode voltage regulator is the very least efficient scheme possible, in addition to being a poor regulator . A 12 volt zener can work quite well as the reference source …