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IndustryArena Forum > CNC Electronics > Servo Motors / Drives > Basic driver for an AC servo

Thread: Basic driver for an AC servo

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  1. 12-19-2005, 04:57 AM #1
    phantomcow2
    phantomcow2 is offline Registered
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    Basic driver for an AC servo

    I have been looking at some AC servo motors that i may use for my router project. My question is really about the drives though, what are they like?
    Can somebody compare the stepper drive vs the AC servo? and maybe even a basic bare minimum schematic of a servo drive so i know what i am in for?
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  2. 12-19-2005, 06:57 AM #2
    DennisCNC
    DennisCNC is offline Registered
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    Stepper drive is simple a few fets to switch the coils and a few 74HC chips and your moving. With ac servo you have your hands full, you got the PID loop and tuning of the motors...
    Read this thread:
    http://www.cnczone.com/forums/showthread.php?t=14477
    Dennis
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