On Tue, 24 Nov 1998 12:56:10 -0500 Andy Kunz writes: >>wired like a stepping motor with about 5 phases, but the motor >reaches >>a much higher rpm than a stepping motor. I am looking for more >>information on this type of motor. I would like to drive this with a >>pic and some mosfets but I am not sure how. > >Very simple. This is a "brushless" motor. You should be able to find >information on the basics to control it from a lot of sources on the >web. >You may also be able to use standard stepper-motor logic wihtout a >problem. Usually the motor driver IC is on the board with the motor coils. It just needs power (usually 12V) and a DC control volatge that sets the amount of power applied to the motor. Two feedback signals are typically supplied, one being N pulses per revolution (called FG, for Frequency Generator), and one is one pulse per revolution (the PG, Pulse Generator). The rest of the VCR circuit would examine these signals and close the loop to the control voltage. If the VCR runs at all, it's usually worthwhile to examine the signals to/from the motor board before removing it. ___________________________________________________________________ You don't need to buy Internet access to use free Internet e-mail. Get completely free e-mail from Juno at http://www.juno.com/getjuno.html or call Juno at (800) 654-JUNO [654-5866]