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.

Mosfet Driver Selection Help

safass

Newbie level 4
Joined
May 18, 2018
Messages
6
Helped
0
Reputation
0
Reaction score
0
Trophy points
1
Activity points
54
Hi masters,
I want to design an ESC with a maximum of 40V 40A. but I do not aim for a functional design while doing this. I don't need plugins like communication etc. I will just feed and it will have pwm output for a speed setting. Therefore, as a gate driver, I am looking for a mosfet driver that can drive mosfets only based on this speed reference.
The mosfet driver should be able to handle feedback such as current and voltage on its own, and I don't want to have a pwm input for each mosfet. I want to do this work without using MCU.
Is there a reference or a mosfet driver that you know of to help me?
Thank you very much in advance.
 

KlausST

Super Moderator
Staff member
Joined
Apr 17, 2014
Messages
20,356
Helped
4,441
Reputation
8,891
Reaction score
4,468
Trophy points
1,393
Activity points
134,577
Hi,

It does not only depend on motor type, driving method, PWM frequency, duty cycle range, precision, EMI...it also depends on quantity, availability, cost, ...

Why don´t you use ready to buy modules?
..or just low side swithing and free wheeling diode?

Klaus
 

safass

Newbie level 4
Joined
May 18, 2018
Messages
6
Helped
0
Reputation
0
Reaction score
0
Trophy points
1
Activity points
54
Hi,

It does not only depend on motor type, driving method, PWM frequency, duty cycle range, precision, EMI...it also depends on quantity, availability, cost, ...

Why don´t you use ready to buy modules?
..or just low side swithing and free wheeling diode?

Klaus
Hi Sir,
Firstly, thank you for your answer.

Yes I agree, it depend on driving method PWM frequncy and other things. But I am looking for anything, I mean driving method could be trapezoidal or FOC or PWM frequency could be 15-40kHz... I just want to any guidance, I will choose from recommendation.
I found a IC, Allegro's A4915. I am looking for IC like this.

I don't want to use ready to buy because I want to design it sir.
Thank you for your understanding.
 

danadakk

Advanced Member level 4
Joined
Mar 26, 2018
Messages
1,210
Helped
223
Reputation
458
Reaction score
258
Trophy points
83
Activity points
5,584
If you do not want to do any design work KlaussST recommendation excellent.
There is significant design considerations when doing motor control, not for
the novice, but not rocket science either.

However there are solutions out there with example projects one can draw off -



Many other vendors have a rich set of application notes on this topic, Microchip, ST, Freescale,
Infineon........


Regards, Dana.
--- Updated ---

Here is single chip (not including MOSFET high current gate drivers) as example -

1627560877370.png



Regards, Dana.
 
Last edited:

KlausST

Super Moderator
Staff member
Joined
Apr 17, 2014
Messages
20,356
Helped
4,441
Reputation
8,891
Reaction score
4,468
Trophy points
1,393
Activity points
134,577
Hi,

in first post you said motor control ... and PWM. No motor type.
I thought of a DC motor.

Now you show a 3 phase BLDC IC.

I will come back when there are clear informations.

Klaus
 

danadakk

Advanced Member level 4
Joined
Mar 26, 2018
Messages
1,210
Helped
223
Reputation
458
Reaction score
258
Trophy points
83
Activity points
5,584
Based on your post needing ESC I assumed you are looking for this -


Is that an accurate assumption ?


Regards, Dana.
 

LaTeX Commands Quick-Menu:

Similar threads

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Top