cancel
Showing results for 
Show  only  | Search instead for 
Did you mean: 
adoobii
Visitor
Visitor
1,083 Views
Registered: ‎06-14-2018

Artix -7 current limiting

Jump to solution

Hello

 

I am trying to attach a DC motor to the high and low signals provided ny the Pmod ports, but when I do that the FPGA shuts down, does that have to do with the current through the ports?

0 Kudos
Reply
1 Solution

Accepted Solutions
maxdz8
Adventurer
Adventurer
1,294 Views
Registered: ‎01-08-2018

You can bet. Digital ports are usually in the range of milliamps you'll need at least one transistor (but for big motors I'd suggest two, or one transistor + one relay) to pull serious current.

 

As far as I understand, most pins from FPGA can barely drive a led. The arty Z7 I have doesn't drive leds directly but goes through a transistor.

View solution in original post

2 Replies
maxdz8
Adventurer
Adventurer
1,295 Views
Registered: ‎01-08-2018

You can bet. Digital ports are usually in the range of milliamps you'll need at least one transistor (but for big motors I'd suggest two, or one transistor + one relay) to pull serious current.

 

As far as I understand, most pins from FPGA can barely drive a led. The arty Z7 I have doesn't drive leds directly but goes through a transistor.

View solution in original post

adoobii
Visitor
Visitor
1,068 Views
Registered: ‎06-14-2018
oh, so I must have an outside power source. I thought I could make the motor work using the FPGA only. Thanks!
0 Kudos
Reply