Is ULN2064B Safe for 24V Stepper Motors?

AI Thread Summary
The discussion centers on the use of a ULN2064B to control 24V stepper motors requiring 800mA each. Concerns are raised about the safety and compatibility of the ULN2064B with these specifications, particularly regarding its output characteristics and current ratings. Participants suggest checking the datasheet for voltage and current limits and inquire about application circuit diagrams for stepper motor control. The conversation briefly diverges into unrelated topics, including requests for software to calculate sun position. Overall, the main focus remains on ensuring the ULN2064B can safely operate the specified stepper motors.
monahago
Messages
5
Reaction score
0
--------------------------------------------------------------------------------

Hi All

I am using a ULN2064B to control 2 stepper motors, and the input to the IC is directly from an I/O port on an 8051 microcontroller.
The stepper motors are 24V, and "apparently" need 800mA each to operate. Does this sound correct? And is this safe with the ULN2064B?

Basically, as I am aware the output is inverted, so to turn a coil from a motor on I apply a logic 0 to the corresponding input pin on the 2064B


Any help would be great.
Cheers guys
 
Engineering news on Phys.org
iam really sorry please forgive me all
 
monahago said:
iam really sorry please forgive me all

No worries, you were just a little confused about where/how to post.

Could you supply a pointer to the datasheet for your IC? What are its voltage and current ratings? Does it show an application circuit diagram for driving a stepper motor?
 
i need asoftware(windows XP) to calculate the sun position ,the enteries should include the longitude to tenth of a second , time to the second and altitude.The utility is to produce the azimuth and elevation to the center of the sun to an accuracy of 0.1 degrees and better if pssible,the simpler the better.
thank you for your time
 
Thank you berkeman
 
monahago said:
i need asoftware(windows XP) to calculate the sun position ,the enteries should include the longitude to tenth of a second , time to the second and altitude.The utility is to produce the azimuth and elevation to the center of the sun to an accuracy of 0.1 degrees and better if pssible,the simpler the better.
thank you for your time

I googled sun azimuth elevation calculator, and got lots of hits. Here's the hit list:

http://www.google.com/search?source...US301US302&q=sun+azimuth+elevation+calculator

You could also change the word calculator to software in the google search, to get more general links.
 

Thread 'Underwater piezoelectric sensor array receive sensitivity'

Hi all I have some confusion about piezoelectrical sensors combination. If i have three acoustic piezoelectrical sensors (with same receive sensitivity in dB ref V/1uPa) placed at specific distance, these sensors receive acoustic signal from a sound source placed at far field distance (Plane Wave) and from broadside. I receive output of these sensors through individual preamplifiers, add them through hardware like summer circuit adder or in software after digitization and in this way got an...
View full post »

Thread 'Question about bonding ground and neutral'

I am not an electrical engineering student, but a lowly apprentice electrician. I learn both on the job and also take classes for my apprenticeship. I recently wired my first transformer and I understand that the neutral and ground are bonded together in the transformer or in the service. What I don't understand is, if the neutral is a current carrying conductor, which is then bonded to the ground conductor, why does current only flow back to its source and not on the ground path...
View full post »

Thread 'Following up on the recent thread about Earth Resistance measurements'

I have recently moved into a new (rather ancient) house and had a few trips of my Residual Current breaker. I dug out my old Socket tester which tell me the three pins are correct. But then the Red warning light tells me my socket(s) fail the loop test. I never had this before but my last house had an overhead supply with no Earth from the company. The tester said "get this checked" and the man said the (high but not ridiculous) earth resistance was acceptable. I stuck a new copper earth...
View full post »

Similar threads

How can the output power of a motor be controlled using an inverter?
Replies
6
Views
2K
Controlling a stepper motor-basic equipment
Replies
1
Views
1K
Electronics How to control a stepper motor in closed loop (PID) in arduino?
Replies
5
Views
6K
Recommend me h-bridge ic for stepper motor
Replies
4
Views
2K
Stepper Motor Anatomy and Logic
Replies
2
Views
2K
Transistor questions in control a stepper motor
Replies
4
Views
2K
Making an Arduino controlled H-bridge
Replies
9
Views
4K
Convert 1 phase to 3 phase by using an old washing machine
Replies
19
Views
4K
How to connect DC motor to Raspberry Pi?
Replies
3
Views
3K
H-Bridge troubles (driving a stepper motor)
Replies
1
Views
3K

Hot Threads

Recent Insights

Back
Top