+38V

A

Phase

 

3718

 

 

 

I0 current

Current

Phase

I1 current

Control

Control

 

 

 

D

 

 

VREF

C

 

 

One

 

 

Comp.

 

 

Shot

 

 

 

 

 

 

B

 

 

 

R4 Typ

0

U20 - 15 A

R4 B

J2 - 1 C

J2 – 3 D

2.7 mSec

5.5 mSec

5v

0v

0.4v

0.0v

38v0v

0v

38v0v

0v

Fig. 4.1 Stepper Motor Drive Circuit

Page 29
Image 29
Craden Peripherals DP8 technical manual Stepper Motor Drive Circuit, U20 15 a