All Questions
Tagged with nmos gate-driving
10
questions
1
vote
1
answer
107
views
How to determine rise and fall times of MOSFET
Rise and fall times of a PWM switching MOSFET must be paid attention because too slow switching times will decrease the efficiency and too fast will cause ringing. I want to know how to choose a rise ...
- 663
2
votes
1
answer
323
views
Will my gate driver work for this situation?
This is my own design, I did a gate driver for the MOSFET. Would this design work, or should I instead use a gate driver IC?
- 288
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
2
votes
2
answers
766
views
Adjusting the rise and fall time of a gate driver
I have a hard time understanding the specifications of the UCC27511A-Q1 gate driver.
I understand that for a period of 0.5 μs (2 MHz) it can supply a source current of 4 A and a sink current of 8 A.
...
- 103
0
votes
0
answers
73
views
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 ...
0
votes
3
answers
55
views
Can I use the P3020L Mosfet with 5>Vgs>3 without any linear region consequences?
So I've been searching for a long time, for a power mosfet I can switch safely at a Vgs of 3V. I'd like to know if this is the one, because luckily, I recovered it from a computer power supply, thus I ...
- 146
4
votes
3
answers
436
views
Do I really need the N-MOS driver here?
In this circuit I am wondering if I really need the n-channel mosfet to control my dual p-channel MOSFET. I think I can drive this straight from the micro. Just want to second opinion before I modify ...
- 185
0
votes
2
answers
542
views
voltage divider driving PMOS with slow turn-off time
I have a voltage divider that is driving the gate of a high side PMOS switch. The voltage divider turns the PMOS on once the NMOS is turned on by a 5v logic controller. The PMOS turns on ...
0
votes
1
answer
2k
views
High side N channel gate driver
So I realized with the suggestion in the comments that there is a much better solution to driving a higher voltage H bridge than using transistors or secondary mosfets and zener voltage. I have ...
3
votes
1
answer
9k
views
Charge Pump for driving NMOS
I was looking for a way to drive the gate of a power NMOS. Since I've already have a small FPGA available at a independent backup-3V3 rail, I was thinking I could use it's internal oscillator to build ...
- 1,845