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We need to control larger motors with a separate 12V
power supply, from the RCX outputs. We would like to
'mirror' the RCX bipolar, pulse-width-modulated outputs
to a separate circuit with a larger H-bridge that is
(probably) electrically isolated from the RCX.
Can anyone point to an example of doing this? I betcha
someone has by now, but I didn't find much with my
Google search...
We can build some external electronics, etc. but don't want
to reinvent the wheel (driver).
First thoughts are two opposite-connected optoisolators
with a series resistor to the RCX output. But then, how
to drive an H-bridge from that??
We need to drive two electric-window motors that are 12V and
about 5 to 10 amps, for a tracked vehicle.
BTW, any recent sources for TRACKS would be appreciated!
--
Regards, Terry King ...In The Woods In Vermont
tking@waitsriver.k12.vt.us
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Message has 2 Replies:
 | | RCX as programmable battery charger
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| I was looking at my 1 years old cell phone, its battery is deteriorationg so fast cause of a bad recharger. I wondered about building a "hardware" charger, but i never found a design without a IC with good features: without an IC its quite difficult (...) (22 years ago, 7-Oct-02, to lugnet.robotics)
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