[ARC5] Dynamotor Questions

Bob kb8tq kb8tq at n1k.org
Mon Dec 18 17:21:59 EST 2023


HI

Looked at the other way: 

You are after an RMS voltage. If it’s straight half wave DC, you would need ~2X the voltage to get the dynamotor up to full 
speed / full output. (so half wave off a 48V transformer for your 24V device). Inevitably there will be *something* that is less 
happy at 2X voltage peaks than it was on pure DC.

Bob

> On Dec 18, 2023, at 5:10 PM, Hubert Miller <Kargo_cult at msn.com> wrote:
> 
> No one else weighs in?
> The dynamotor isn't smart enough to care, DC is DC, but....you are getting RMS power, so the dynamotor will be running slow, 
> half power, is that right ? 
> Which may be an advantage for long life, in a receiver situation. 
> I can't think of why this question would come up though. Big computer type lytics should be cheap and common. At least, they
> used to be. Thinking back now...the big cans were mostly low DC, like 10 volts working. Ones with 35 volt rating were not so 
> common. 
> -Hue Miller 
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