Power Supply Suggestions please..

[martin54]

Rick, I'm not an expert but this may help, Taken from the leadshine AM882 driver manual.


Both regulated and unregulated power supplies can be used to supply the drive. However,
unregulated power supplies are preferred due to their ability to withstand current surge. If regulated
power supplies (such as most switching supplies.) are indeed used, it is important to have large
current output rating to avoid problems like current clamp, for example using 4A supply for 3A
motor-drive operation. On the other hand, if unregulated supply is used, one may use a power supply
of lower current rating than that of motor (typically 50%～70% of motor current). The reason is that
the drive draws current from the power supply capacitor of the unregulated supply only during the
ON duration of the PWM cycle, but not during the OFF duration. Therefore, the average current
withdrawn from power supply is considerably less than motor current. For example, two 3A motors
can be well supplied by one power supply of 4A rating

[Ricardoco]

Rick, I'm not an expert but this may help, Taken from the leadshine AM882 driver manual.


Both regulated and unregulated power supplies can be used to supply the drive. However,
unregulated power supplies are preferred due to their ability to withstand current surge. If regulated
power supplies (such as most switching supplies.) are indeed used, it is important to have large
current output rating to avoid problems like current clamp, for example using 4A supply for 3A
motor-drive operation. On the other hand, if unregulated supply is used, one may use a power supply
of lower current rating than that of motor (typically 50%～70% of motor current). The reason is that
the drive draws current from the power supply capacitor of the unregulated supply only during the
ON duration of the PWM cycle, but not during the OFF duration. Therefore, the average current
withdrawn from power supply is considerably less than motor current. For example, two 3A motors
can be well supplied by one power supply of 4A rating

That sorts that out then, So where can i get a nice large High current terroidal from then... Soon LOL the trouble is ive now got to get caps, wire, case, switch, blah blah blah.. But hey-ho i suppose..

Regards Rick

[Jonathan]

I've got a spare one and the rest of the bits...will contact you about it.

This is the diagram I sent to Ricardoco in case anyone else wants it:
Untitled Page

[wilfy]

I've got a spare one and the rest of the bits...will contact you about it.

This is the diagram I sent to Ricardoco in case anyone else wants it:
Untitled Page

thanks for that link jonathan, i'm acctually still no wiser, dunno how everyone else feels... i think my brain has stopped working recently :/

[Jonathan]

i think my brain has stopped working recently :/

Doubt I can help then ;)

Is there something specific you're not sure about?