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Problem with power to a servo - Printable Version

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+--- Thread: Problem with power to a servo (/showthread.php?tid=3600)



Problem with power to a servo - Tiago_D - 16-09-2012

hello.

Something is wrong as my pinguino, when I connect a servo he works during segundor and then turns off and does it consecutively, can someone tell me what the problem is.

Thanks.

(sorry for my bad english)


RE: Problem with power to a servo - koocotte - 16-09-2012

I do not understand your question. A common problem with servo: If your servo is too powerfull, it can drain too much power and on a small power supply, you can have a pinguino reset.


RE: Problem with power to a servo - Tiago_D - 17-09-2012

yes I understand that he may be consuming more current than the pinguino can provide, but how it is possible to get the arduino sufficient power to the servo with usb, and pinguino not. what is the difference


RE: Problem with power to a servo - koocotte - 17-09-2012

Electrolytic capacitor on direct current are used for this.
Add a big capacitor on the power line near the servo (not the command line)


RE: Problem with power to a servo - Tiago_D - 17-09-2012

thanks for the help. I thought the ceramic capacitor that I have on my board at the power line was enough.
I appreciate the help.


RE: Problem with power to a servo - caaveiro - 18-05-2013

(17-09-2012, 10:03 AM)koocotte Wrote: Electrolytic capacitor on direct current are used for this.
Add a big capacitor on the power line near the servo (not the command line)



Thanks for your reply.
Im have this problem and with an 100Uf electrolitic capacitor resolve de problem.


RE: Problem with power to a servo - rialaga - 31-08-2013

Very good idea, but I recommend an external source and that if you need a high torque or many servos generate too much current and you run the risk of burning out. (Y)

Regards to all!


RE: Problem with power to a servo - jesus_sphinx - 16-11-2013

(31-08-2013, 05:22 AM)rialaga Wrote: Very good idea, but I recommend an external source and that if you need a high torque or many servos generate too much current and you run the risk of burning out. (Y)

Regards to all!
I got the same problem and I decided to design a 18F4550 board with separate power for servo lines. As the new servo library is ready on x.4 (rel 940) is able to handle up to 30 servos (full pin users usage), I'm working in a robot project that uses this ability, and that's why I redesigned a Pinguino board. I will publish it soon in my blog.
But again, your reseting problems come from servo current drain if supply is shared between both: PIC and Servo. Absolutely.


Last Post - Godlom - 27-05-2019

oh, yeah, i didnt notice it on the right side. same for black then. in both black and white theme you have a small icon, on the left side on an unread topic next to the title of the topic which shows you first unread post, and on the right side next to the last poster name which opens the last post in that topic.