somewhere, but I'll have to either repair the leads or replace them. I don't
know whether I will get to that tonight.
As for the motors, I'll have to try to find more info on them. They are
small, but they may not be VERY SMALL. The first time I went looking, I
couldn't find much info on them, but there's more out there now.
rtstofer wrote:
>
> You should still check the output voltage on IOLines 17 & 18 without
> the H-Bridge. As the pulse width varies, the voltage should change.
> As I pointed out earlier, an analog meter will do the integration of
> the pulse width. A digital meter may not. If not, you need that 220
> ohm resistor in series with a 1 ufd capacitor between the pin and
> ground to form an integrator. Anything close from Radio Shack should
> work fine.
>
> One other thing: You never did say how much current your motors may
> require. Remember, the 754410 is limited to 1A per motor. That's a
> VERY SMALL motor. It is possible that the stall current (before the
> motor gets running) is so high that the driver shuts down on overcurrent.
>
> The ABSOLUTE MAXIMUM Continuous Output Current is 1.1A.
>
> So, connect your motors directly to the battery and measure the
> current. Measure as you try to stall the motor by loading it up.
>
> One amp is a VERY SMALL motor.
>
> Richard
>
>
>
>
>
--
View this message in context: http://www.nabble.com/H-Bridge-issue...maybe.-tf4867316.html#a13941675
Sent from the OOPic mailing list archive at Nabble.com.
Yahoo! Groups Links
<*> To visit your group on the web, go to:
http://groups.yahoo.com/group/oopic/
<*> Your email settings:
Individual Email | Traditional
<*> To change settings online go to:
http://groups.yahoo.com/group/oopic/join
(Yahoo! ID required)
<*> To change settings via email:
mailto:oopic-digest@yahoogroups.com
mailto:oopic-fullfeatured@yahoogroups.com
<*> To unsubscribe from this group, send an email to:
oopic-unsubscribe@yahoogroups.com
<*> Your use of Yahoo! Groups is subject to:
No comments:
Post a Comment