All Questions
Tagged with totem-pole mosfet-driver
6 questions
0
votes
2
answers
290
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The resistor is over heated in my totem pole circuit
This is my totem pole circuit:
It works well, but R32 is too hot.
This is scope:
I changed R32, R34to 470 ohm, but I got the same result:
I think the resistor value is the problem. How can I fix ...
- 67
1
vote
1
answer
557
views
Totem pole MOSFET driver does not turn off
I'm trying to drive a 12-24 V DC motor with MCU PWM output. My design is based on a totem pole gate driver
First I use a voltage divider to provide the full-on gate voltage (10 V) for my power MOSFET.
...
- 353
0
votes
1
answer
967
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36V P-MOS - PWM driver circuit - totem pole - reduce BJT peak power
I want to use a totem pole BJT driver for a P-channel MOSFET.
Various google searches brought me to the following circuit:
In Olin Lathrop's answer to this question it is quite well described.
pull-...
- 1,854
0
votes
0
answers
637
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Totem pole Bjt based Mosfet Gate driver
I need to design a totem bole bjt based gate driver for Mosfet IRF640, which is going to be used in a Buck converter.
I know the peak gate charging current= 1A.
I've already selected my ...
- 430
1
vote
2
answers
1k
views
Criticize Totem pole + Level Shifter topology
I'm designing a FET gate driver that allows 1.8V MCUs to control FETs up to 100kHz.
FETs to be used will vary a lot so I'd like to have as much current drive as I can.
I need it to be based on ...
- 7,984
14
votes
2
answers
13k
views
Why doesn't shoot-through occur on totem-pole structure?
I'm designing a totem-pole by BJTs in order to drive a MOSFET. I studied on several online examples and built up my circuit according to what I understood from them. However, there is a detail which ...
- 14.2k