All Questions
Tagged with nmos mosfet-driver
16
questions
2
votes
1
answer
233
views
How can I take parameters from power NMOS and power PMOS transistors and translate these into LTspice simulations?
I am trying to simulate NMOS and PMOS power transistors in LTspice, but I keep getting error messages about the NMOS being duplicate.
Some of the earlier LTspice file is here. I am trying to have a ...
- 121
0
votes
0
answers
45
views
Inverting MOSFET drive circuit, is my scheme correct? [duplicate]
I am an automotive engineer student, building an inverting MOSFET driver (where a MOSFET drives and controls another MOSFET, Vin low -> Main MOSFET closed, Vin high -> Main MOSFET open).
My ...
0
votes
1
answer
104
views
NMOS high side driver: If a resistor is added on the "Vs"/"Vss" input connected to bootstrap capacitor, should external Rgate be reduced?
Following up from a previous question, in the MIC4606 datasheet, it is suggested to protect the "xHS" (called Vs or Vss on most parts I found) pins with a Schottky diode and a resistor, as ...
- 888
0
votes
0
answers
73
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How can I properly terminate an unused gate driver channel?
I have a circuit where I need only one MOSFET to be controlled but I have a dual channel gate driver capable of driving both high and low side MOSFET. I only need the low side channel for the ...
5
votes
4
answers
570
views
Low-side NMOS switch circuit
I built this circuit trying to learn how to drive a single HY3912W MOSFET. In the simulator, it acts as I expect.
I built it.
When I applied 6V to VAG and 5V for 1-second pulse to PWM every time the ...
- 339
1
vote
1
answer
302
views
High side n-MOS driver without charge pump
I couldn't find details of this circuit configuration in an internet search.
Most online results are about P-MOSFET in high side path or N-channel MOSFET with charge-pump/IC based driver.
simulate ...
- 3,032
1
vote
1
answer
356
views
What are the limitations of AC coupling a MOSFET gate?
I came up with this AC coupled half bridge for high positive and negative voltage output with logic level control that I cannot find in any resources about (probably due to wrong search terms):
It ...
- 169
2
votes
1
answer
1k
views
N-channel MOSFET back to back do not turn off
I'm an hobbyist without experience in electronics, but I like to understand how the things works. Just now I'm playing with a PWM solar charger circuit.
After some research I produced a schematic, ...
- 23
6
votes
4
answers
3k
views
N-MOSFET driver for P-MOSFET high side switch
I need to create a high side switch to drive a 2.5W resistive load, which must be referenced to ground. I'm planning to use a P-MOSFET as load switch. The problem is there I have an inconstant voltage ...
- 1,025
-1
votes
1
answer
43
views
Least amount of parts to switch a resistive load [closed]
Excuse me for not being able to provide a schematic right now as I’m on mobile but my question is fairly straightforward.
I’m trying to drive a bunch of resistive loads fairly quickly in a constrained ...
- 11
1
vote
0
answers
180
views
MOSFET bootstrap switching circuit switching OFF problem
Currently I am designing a power switching circuit. The goal is to switch on a N channel MOSFET with a low side load. The circuit should work with input Voltages up to around 60 Volts. The switch is ...
- 185
0
votes
2
answers
280
views
Switch individual MOSFETs connected across lithium-ion cell for passive balancing
I am working on a passive cell balancing circuit using N-MOSFET. The cell voltage will be monitored by the micro-controller and it can also generate corresponding logic level signal according to over ...
- 307
1
vote
0
answers
66
views
High side mosfet- Extra pulse on turn off
I am making a 3 phase motor drive H-bridge using N channel mosfets (IRFB3607) and BJT based custom mosfet driver such that my turn on and turn off time is about 200ns. Right now I am testing the ...
2
votes
5
answers
2k
views
Improving dV/dt turn-on immunity of a mosfet without increasing turn-off time
I'm designing a solid state battery disconnect switch and I want to improve the mosfets' turn-on immunity (high dV/dt on Vds) without impacting the turn-off time. I don't really care about the turn-on ...
- 359
0
votes
2
answers
257
views
nanoPower comparator driving MOSFET not providing expected output
I built the following circuit to charge a large capacitor from a low power source before switching the load:
simulate this circuit – Schematic created using CircuitLab
MAX9064, MCH3484, ...
- 1,396