motor control, was unknown
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I'm looking at using a LARGE h-bridge on a large ic:
http://www.rsm.com/scp3623.htm
,, how would this wire up to the stamp, and Al Williams's pwm chip
that supplies up to 8 motors with pwm (speed control)? The motor will be
about a 1/4 horse 12vdc.
Bill
Chris wrote:
> Gary,
>
> As far as i can say, you have 2 options.
>
> 1) Get an H-Bridge
>
> Two I know of and have used are the L293 and the more powerful L298.
> Both run 2 DC motors in either direction, though i'm not sure about
> speed control. Sending differnt pulses to the chip MAY change it's
> speed, but I'm not really sure. The 93 can handle up to 1.2 Amps,
> while the 98 can take 4 Amps but is a little bit harder to use.
>
> Both cost around $5, if you want datasheets, i'll send them to you.
>
> 2) Get servo motors.
>
> Servo motors, though expensive, can be controled directly from the
> stamp in 2 directions, at varying speeds, no extra driver needed.
> The H-Bridge option is much cheaper though.
>
> -Chris
http://www.rsm.com/scp3623.htm
,, how would this wire up to the stamp, and Al Williams's pwm chip
that supplies up to 8 motors with pwm (speed control)? The motor will be
about a 1/4 horse 12vdc.
Bill
Chris wrote:
> Gary,
>
> As far as i can say, you have 2 options.
>
> 1) Get an H-Bridge
>
> Two I know of and have used are the L293 and the more powerful L298.
> Both run 2 DC motors in either direction, though i'm not sure about
> speed control. Sending differnt pulses to the chip MAY change it's
> speed, but I'm not really sure. The 93 can handle up to 1.2 Amps,
> while the 98 can take 4 Amps but is a little bit harder to use.
>
> Both cost around $5, if you want datasheets, i'll send them to you.
>
> 2) Get servo motors.
>
> Servo motors, though expensive, can be controled directly from the
> stamp in 2 directions, at varying speeds, no extra driver needed.
> The H-Bridge option is much cheaper though.
>
> -Chris