Welcome to our site!

Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.

  • Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.

bipolar driver with A3986

Status
Not open for further replies.

s1axo

New Member
Russlk said:
The A3986 is designed to be used with mosfets. Why do you want to use bipolar?

I wont build stepper driver (with A3986) for bipolar stepper motor and I cann't find any scheme or PCB. I know A3986 use mosfets like IRF 540, but I donn't have experience design new project.
 
Last edited:

markcomp77

New Member
I'm drawing driver on A3986...

2969-ster3986-01.png


Add or change something there ?
 
Last edited:

markcomp77

New Member
IC1 - 7805
R1, R5, R6, R8 - ?
R2, R4, R7, R9 - ?
C7, C5, C6, C4 - ?? 220nf...
R10, R3 - (Imax=8A & Vrefmax=2V) => Rsens=2/(8*8) => Rsens=0.0313R... 0.025R (0.05R & 0.05R)

C1, C2, C3, C9, C10, C13, C12, C11 - 100nF
R12 - 10k
RN1 - 2.2K
R13, R14, R15 - 330R
R16 - ?? (560R)
R11 - 10k - 50k (datasheet)

Q1, Q1, Q3, Q4, Q5, Q6, Q7, Q8 - irfz24n 17A/55V Rds(on)=0.07R Qg(tot)=20nC
 

muale

New Member
hi markcomp77
you preliminare version work ?
you have test it

i have order 3 from digikey
and like to build 3 driver to
bipolar stepper motor
i have motor 2.5volt and 4.5amp
and 6.1amp

sorry for my english

best regards

muale
 
Status
Not open for further replies.

EE World Online Articles

Loading
Top