Re: TI-H: Remote Control Car
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Re: TI-H: Remote Control Car
Here is how my H-Bridges work:
A B Motor
__________
0 0 Stop
1 1 Stop
1 0 Fwd.
0 1 Rev.
I simply use the H-Bridge, with NO supporting logic. That is, those inverters
and gates and whatever Grant had added to that schematic he posted, are totaly
un necessary. He has a direction control line, and a power line. you need to
set both lines, presumably in atwo steps to activate the motor. If you remove
the logic, you can use a single step, one line or the other, to control the
direction, if the lines are both the same, then it is stopped.
this uses 2 lines. for 2 motors, you just add another copy of the circuit, and
you then have 4 lines. 3 motors, 6 lines. Simple enough.
||||||||||| Track or wheel on m1
,-o 1 o-.
/| |-O-| |---< \
|'-o m o-' >--m1 control lines
'------------< /
,------------< \
|.-o 2 o-. >--m2 control lines
\| |-O-| |---< /
'-o m o-'
||||||||||| Track or wheel on m2
These H-Bridges would use the logic table shown above.
Richard Piotter
richfile@prairie.lakes.com
The Richfiles TI Hardware and BASIC web page:
http://www.geocities.com/SiliconValley/Lakes/5081/Richfiles.html
References: