Continue to Site

Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

Register Log in

[SOLVED] Build Dead time for Mosfet

Status
Not open for further replies.
azadfalah

azadfalah

Full Member level 2
Full Member level 2
Joined
Aug 13, 2016
Messages
145
Helped
1
Reputation
2
Reaction score
2
Trophy points
1,298
Activity points
2,425
Hello friends, I hope you're fine

I have a PWM 50hz on CLowSide
I want to turn on MOSFET 2 after than Mosfet 1 turn off, and Turn Off Mosfet 2 before than Mosfet 1 turn on
Is the following schematic correct?
Are they overlapping?

Untitled.png


Thanks
 
Last edited:

You have no dead time. Use another gate driver that includes all options you need, not an obsolete one.
 
thanks for your response
I can not using gate driver like IR2104
Can you guide me to this method By TLP250
 

Here are 2 options for you to implement the dead time generation.

Option 1:
Dead time option 1.png

4 passive components + 1 logic gate IC = 5 components
Drawback: about 8ns (if SNx4HC02 used) of propagation delay due to the buffering of the NOR gates.

Option 2:
Dead time Option 2.png

4 passive components + 2 diodes + 1 logic gate IC = 7 components
Advantage: no propagation delay (assuming ultra fast diode)
Drawback: more components
 
Status
Not open for further replies.

Similar threads

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Back
Top