Society of Robots - Robot Forum

Electronics => Electronics => Topic started by: SmAsH on January 17, 2008, 07:54:22 PM

Title: is it possible to make the $40 robot with no H-bridge?
Post by: SmAsH on January 17, 2008, 07:54:22 PM
i cannot find one without those expensive shipping costs  :'( is it possible to make the $40 robot with no        h-bridge?
Title: Re: is it possible to make the $40 robot with no H-bridge?
Post by: SmAsH on January 17, 2008, 08:00:00 PM
ps: i have googled it...no results.
Title: Re: is it possible to make the $40 robot with no H-bridge?
Post by: paulstreats on January 17, 2008, 08:26:59 PM
Erm.... NO

If it didnt need H-Bridges it wouldnt have them. Simple
Title: Re: is it possible to make the $40 robot with no H-bridge?
Post by: Bubbles on January 17, 2008, 08:29:44 PM
Actually couldn't you just replace the motor and h-bridge with a servo?
Title: Re: is it possible to make the $40 robot with no H-bridge?
Post by: paulstreats on January 17, 2008, 08:34:36 PM
No, the circuit would do the necessarry pwm required by a servo. It is possible to make the H-bridge with other components other than the specified one, you just have to find one that you can get the components for.....
It can be made to work without a h-bridge but realistically the other components would overheat and die. The H-bridge is there to give power to the motors seperate from the rest of the circuit so the other components dont have to have the required energy for for the motor running through them

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No, the circuit would'nt

Sorry
Title: Re: is it possible to make the $40 robot with no H-bridge?
Post by: SmAsH on January 17, 2008, 09:14:55 PM
hmm...well does anybody know of a good totorial on how to make an h bridge besides the one on instructables..it always freezes the web page.

~smash
Title: Re: is it possible to make the $40 robot with no H-bridge?
Post by: airman00 on January 17, 2008, 09:16:33 PM
Admin's tutorial has info on making an H-Bridge

Title: Re: is it possible to make the $40 robot with no H-bridge?
Post by: SmAsH on January 17, 2008, 09:46:37 PM
ok never mind i just found out there was a futurlec in australia... :-[ thanks a lot for all your help :D