Society of Robots - Robot Forum

Electronics => Electronics => Topic started by: jshalcott on April 08, 2007, 12:37:55 AM

Title: esc
Post by: jshalcott on April 08, 2007, 12:37:55 AM

now i was looking on servocity and found the motor esc's.  Now which amp should i use if i'm using a 12-18 volt motor

Title: Re: esc
Post by: Hal9000 on April 08, 2007, 02:15:42 AM

Hi, when you start off a post make sure you put a detailed description in.

Plus, when you say 'esc's', do you mean etc?

Is this an extension of another post? If so, it's maybe a good idea to put this on the end of that one, if you know what I mean.

Title: Re: esc
Post by: Hal9000 on April 08, 2007, 02:17:12 AM

I don;t think a lot of people know that ESC stands for a speed controller.

Like, just try and keep off abbreviations wherever possible please :)

Title: Re: esc
Post by: jshalcott on April 08, 2007, 03:35:33 PM

sorry, well this is the link http://www.servocity.com/html/speed_controls.html (http://www.servocity.com/html/speed_controls.html), and well they stand for electronic speed controller.

Title: Re: esc
Post by: Hal9000 on April 08, 2007, 04:21:10 PM

You need an amp why?

Title: Re: esc
Post by: dunk on April 08, 2007, 04:46:28 PM

so as Hal9000 says,
you haven't provided enough information to answer the question.

how many Amps does your "12-18 volt motor" draw?
you are looking for it's "stall current". if you cant find this info online then try measuring it's current draw with a multimeter with it connected to a battery as you try to to stop the motor rotating.
you will need a motor controller that can handle that may Amps at the voltage used.

note that the first 3 motor controllers on the link you posted are only rated up to 9.6Volts so won't really be much good with your motors.

dunk.

Title: Re: esc
Post by: jshalcott on April 09, 2007, 02:34:34 AM

where can i get a multimeter

Title: Re: esc
Post by: Hal9000 on April 09, 2007, 02:39:02 AM

Any electronics store.........someone in your family might have one. Maybe even a DIY store.

Title: Re: esc
Post by: sotu on April 09, 2007, 02:57:22 AM

Im having problems finding stores who sells stuff for robots. Im going to order something online soon!

Title: Re: esc
Post by: jshalcott on April 09, 2007, 12:30:56 PM

thanks, for the help guys