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  1. 27-06-2018 #9
    john swift's Avatar
    Lives in merseyside, United Kingdom.
    john swift
    Last Activity: 18-01-2021 Has been a member for 9-10 years. Has a total post count of 257. Received thanks 53 times, giving thanks to others 0 times.
    looking at the supply voltages for the AM822

    the stepper driver has a simple linear power supply built in side
    (bridge rectifier and capacitor)
    so you can either connect it to an AC transformer or
    a DC power supply


    if you multiply the AC input voltages by root 2 (1.4142)
    and subtract 2V DC to allow for the volt drop across the bridge rectifier

    the input of 24V-80V AC will give you a DC voltage
    very close to the DC input specified - 30V-110V DC

    this has an advantage you cannot connect the DC supply the wrong way round !!!

    John
    Last edited by john swift; 27-06-2018 at 03:11 PM.
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