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Questions tagged [mosfet]

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Metal-Oxide-Semiconductor Field-Effect Transistor, a type of field-effect transistor (FET). MOSFETs have an insulated gate, the voltage of which determines the conductivity of the device. This can be used for amplifying or switching electronic signals. (From: Wikipedia)

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34 views

I want to create a solar battery charging circuit using CN3791. Now I was checking Waveshare's Solar Power Manager to take an idea and comparing it to the CN3791 Datasheet to know what to choose as ...
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I just finished simulating a circuit on LTSpice and was wondering what type of MOSFET would be appropriate for building this on a PCB. There's a high-power voltage source, and it also runs 1.8 V logic....
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I am self-studying the Design of Analog CMOS circuit book from Razavi and on the first exercise I am already seeing a discrepancy between my numerical calculations and my LTSpice results. I have ...
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I am trying to implement an operational amplifier with high gain. The high gain is achieved by the following circuit: On the other hand, I would like to use a common drain as an output stage, so I ...
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I'm designing an electronic load and I'm currently analyzing the control portion of it. Below shows the circuit which controls the MOSFET. It has two feedback paths : the main one through the MOSFET ...
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I have question for below circuitry: The primary section is the current limitation block and the other is the latch section to fully turn off the MOSFET during the overload or short circuit condition....
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I tried to realize a circuit for the charge-discharge of a capacitor. I used two dual mosfets (D4184, a common module that I bought online; I attach the schematic) as switches. I'm using arduino in ...
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433 views

I'm designing a low-side PWM driver for a 24 V brushed DC motor that draws around 15 A of continuous current. The motor is driven using PWM at a frequency between 2 kHz and 5 kHz, with a variable duty ...
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158 views

I need to simulate the following analog amplifier in LTspice, but I'm pretty confused about how to design it from scratch. Later I'll also have to build it in the lab, but right now my main goal is ...
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444 views

I'm looking for a way to build a fast (~50 ns) high-side MOSFET driver using bipolar transistors. I have achieved good results with the low-side driver shown in the schematic below by using D1 bypass ...
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Image is from Tony Chan Carusone's "Analog Integrated Circuit Design, 2nd Edition", Page 393 The explanation is very vague, usually I find gain by inspecting each node, and splitting it into ...
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I have a question regarding the use of decoupling capacitors around PWM-driven MOSFETs, and I would appreciate some clarification. In the past, I learned that it is good practice to place decoupling ...
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This is my High-Side N-Channel MOSFET driver schematic It uses Isolated-DC-DC (U1) to add 5V to the Gate-Source voltage Back-to-Back 2N7002H (Q4 & Q2) are used to discharge Gate to the Source (Vgs ...
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Gate Driver = IRS2301STRPBF NMOS = IRF640NPBF MCU = ESP32-C6-MINI-1-N4 Diode = ES1D Switching Speed = 100us on time, 10 to 20ms off time for each side with 1ms deadtime. The jumpers in the middle of ...
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According to the datasheet, HO can have a voltage of VB + 0.3 and VB can be 625 V maximum so would that mean: Having 100V on HO will not be a problem, and If HO is driving the gate with 10 V will it ...

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