Robotics with PIC16F877 anyone??
Dan Michaels email (remove spam text)
Roman Black wrote:
Roman, thanks for the info. I'll breadboard the L293D to Tamiya
motor/geartrain to the PIC this week, and see what kind of
noise I get. And how hot the L293's run.
The L298's would probably be better, but not as convenient
for a small pcb. Seems to me, however, for high power, if you
simply run the 4 outputs of the L293 out separately, rather
than tying them together 2-by-2, you could directly drive an
external H-bridge made up of nothing more than 2 hi-current
PMOSFETs and 2 hi-current NMOSFETs. The L293's can handle
the hi-voltages, and PWMing its outputs should work with the
At least this is my perception. And maybe a more flexible
route than worrying about putting a high-current H-bridge
on the small pcb from the get-go.
- Dan Michaels
http://www.piclist.com hint: The PICList is archived three different
ways. See http://www.piclist.com/#archives for details.
See also: www.piclist.com/techref/microchip/devices.htm?key=16F
You must be a member of the
piclist mailing list
(not only a www.piclist.com member) to post to the