Society of Robots - Robot Forum

Electronics => Electronics => Topic started by: jshalcott on April 26, 2007, 10:43:34 PM

Title: cheap esc
Post by: jshalcott on April 26, 2007, 10:43:34 PM

i'm going to use a cheap esc. would a 40 amp esc be ok for a 12-18 volt motor

Title: Re: cheap esc
Post by: Admin on April 27, 2007, 06:37:40 AM

That depends specifically on the motor and the application. :P

Check the motor datasheet and see what the current draw is on it. If you are lucky, the datasheet will give a chart that compares torque vs current vs voltage.

From experience, 40A will probably be fine.

Try not to use motors above 12V because finding good/small batteries starts to become difficult.

Title: Re: cheap esc
Post by: jshalcott on April 27, 2007, 05:09:04 PM

thanks, the 50 amp one is a little bit more money so i think i'll go with that just to be safe.
thanks

Title: Re: cheap esc
Post by: Hal9000 on April 28, 2007, 10:18:11 AM

Remember that everyone doesnt know what an esc is, as a side note

Title: Re: cheap esc
Post by: trigger on April 28, 2007, 01:58:31 PM

Quote from: Hal9000 on April 28, 2007, 10:18:11 AM

Remember that everyone doesnt know what an esc is, as a side note

If someone doesn't know what it is, they can't really help him with his question, so who cares? 

Title: Re: cheap esc
Post by: Hal9000 on April 28, 2007, 04:14:33 PM

Quote from: trigger on April 28, 2007, 01:58:31 PM

Quote from: Hal9000 on April 28, 2007, 10:18:11 AM

Remember that everyone doesnt know what an esc is, as a side note

If someone doesn't know what it is, they can't really help him with his question, so who cares? 

Well, obviously the poster of the question will care. I am just saying, that lots more people might input if they knew what an esc was.

I have never come across this before, in my 'many' years of studing the subject. Therefore it is just a small, albeit helpful warning.

Title: Re: cheap esc
Post by: trigger on April 28, 2007, 10:05:03 PM

Quote from: Hal9000 on April 28, 2007, 04:14:33 PM

Quote from: trigger on April 28, 2007, 01:58:31 PM

Quote from: Hal9000 on April 28, 2007, 10:18:11 AM

Remember that everyone doesnt know what an esc is, as a side note

If someone doesn't know what it is, they can't really help him with his question, so who cares? 

Well, obviously the poster of the question will care. I am just saying, that lots more people might input if they knew what an esc was.

I have never come across this before, in my 'many' years of studing the subject. Therefore it is just a small, albeit helpful warning.

Good point.  I think robot types are less likely to know the term than RC junkies. 

Title: Re: cheap esc
Post by: Kohanbash on April 28, 2007, 11:34:35 PM

and still nobody has defined esc...

esc = electronic speed control

Title: Re: cheap esc
Post by: Hal9000 on April 29, 2007, 05:48:49 AM

Quote from: sdk32285 on April 28, 2007, 11:34:35 PM

and still nobody has defined esc...

esc = electronic speed control

But it's actually controller, I will let you off.

Title: Re: cheap esc
Post by: Kohanbash on April 29, 2007, 07:02:38 AM

Quote from: Hal9000 on April 29, 2007, 05:48:49 AM

Quote from: sdk32285 on April 28, 2007, 11:34:35 PM

and still nobody has defined esc...

esc = electronic speed control

But it's actually controller, I will let you off.

My Bad