Thanks Jinx to replay,

I have been using 1 to 200RPM.
I got this using a converter freq/Vcc (LM2917) linked with the
SG3524 plus a FET to driving the motor.
I would like a new idea get the same.
I tried do this using PIC with PWM and a FET, but the result was not good.
I tried several ways, but I didn't get a 1 RPM yet.

Any idea?

Luis F




>
>> I have been using CI SG3524 Texas to control a DC motor 1/8HP
>> and 24VCC.
>>
>> I am looking for new alternatives of circuits integrated to drive
>> this motor.
>
> What are you using now ? Do you want bi-directional drive ? It
> looks like the SG3524 has linked alternating outputs so I presume
> it doesn't do bi-directional drive. As you've posted this under the
> [PIC] tag, why not a PIC and an external bipolar/FET or H-bridge
>
> eg add PWM to this
>
> http://www.bobblick.com/techref/projects/hbridge/hbridge.html
>
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