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  • How to properly drive an N-Channel mosfet with an ESP32
    From this YT video I learned that above certain loads for a P type mosfet the circuit has to change but I am using an N type so it should be fine Also that after certain frequencies the mosfet will behave differently if the off time is high enough to interfere with the next on cycle, but I am using the default frequency for the ESP32 which as
  • mosfet - In an NMOS, does current flow from source to drain or vice . . .
    Conventional current flows from Drain to Source in an N Channel MOSFET The arrow shows body diode direction in a MOSFET with a parasitic diode between source and drain via the substrate
  • MOSFET symbol - what is the correct symbol - Electrical Engineering . . .
    I've been on this site now a couple of months and I notice various symbols used for MOSFETs What is the preferred symbol for an N Channel MOSFET and why?
  • How to stabilize an op-amp with a MOSFET in the feedback loop
    The voltage reference at the top is about 3-5V lower than the supply voltages to the op-amp In the current circuit implementation I have a different MOSFET ZVP2106, which gives higher current and the sense resistor dropped to 50 3 Ohm
  • How to make a LTspice MOSFET Model?
    I want to make a MOSFET model having the following parameters in LTspice: $$\mu_nC_ {ox} = 100 \mu A V^2 ; V_ {th} = 0 5 V, \lambda = 0$$ and to define W and L, where I can change it from one design to another
  • How does this MOSFET-based Schmitt trigger work?
    This circuit is an inverting NMOS Schmitt trigger I have to admit, it took me a long time to figure out that this odd-looking diagram was actually showing the famous Otto Schmitt circuit Once I turned Q3 by 90 degrees counterclockwise, everything made sense What exactly does Q3 do and how does this circuit work? As you probably know, the classic Schmitt trigger consists of two source
  • Why have a bulk terminal at all? (MOSFET)
    First of all, if this interferes with the threshold voltage, wouldn't my supply rails directly interfere with the mosfet since they could be 1V or 15V Not to mention if there was noise in the power supply, it would directly transmit through, no? What would happen if there was no body terminal? Why does a BJT not need one? Do enlighten me
  • When is a MOSFET more appropriate as a switch than a BJT?
    For an N-channel MOSFET (NMOS), for instance, which can switch current from Drain to Source, the body diode goes in the opposite direction, pointing from Source to Drain So, feel free to take advantage of this body diode when necessary, or just use the MOSFET as a diode directly
  • How can I turn a MOSFET on and off with a PNP transistor?
    I need to control a MOSFET (a Jiangshu JieJie JMSL0302AU) with an ATtiny1616 to turn a 40 A load on and off (without switching ) Could you please check if this schematic is correct? The ATtiny will
  • Constant current source with MOSFET, OPAMP and Instrument Amp
    The gate capacitance of the MOSFET is enourmous, 28000 pF, and the Op Amp has big problems driving it I have tried a small series resistor of 20 \$\Omega\$ in series with the resistor, and have since tried adding a capacitor to ground to filter out unwanted frequencies The low pass filters I have in the circuit are a hindrance rather than a help





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