Does anyone have any exeperience using a drv101/drv102 solenoid driver with the

jCorace

Hello,
I have been trying to hook up a Texas Instruments solenoid driver chip ( http://focus.ti.com/docs/prod/folders/print/drv101.html )
to the BasicStamp Homework board to control the speed of a solenoid. Its seems like the chip could be switched by 5v from a pin and
it's PWM could be controlled by the PWM output of one of the B2's other Pins. After doing this and experimenting with the Drv's delay pin, the PWM signal I am
unable to get any output. If anybody has any experience working with these chips I could really use some help.

Thanks,
Jason Corace

Mike Green

You need to filter the PWM output to get a stable variable voltage source. Look at the description of the PWM command in the PBasic manual and the discussion of digital to analog conversion using a Stamp in the Stamps in Class tutorials.

Franklin

Try using a resistor for the PWM control until you get that working then try Mikes idea.

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- Stephen