REFLECTOR: IVO prop Motor Current
Hiroo Umeno
humeno at microsoft.com
Thu Feb 20 16:57:35 CST 2014
Thank you. This will help me size the current sensor and PCB copper weight requirements. I can always fine tune the firmware but having the rough idea of the load gives me the starting point. I take it this is at 14V?
Hiroo
From: reflector-bounces at tvbf.org [mailto:reflector-bounces at tvbf.org] On Behalf Of Brian Michalk
Sent: Thursday, February 20, 2014 2:49 PM
To: Velocity Aircraft Owners and Builders list
Subject: Re: REFLECTOR: IVO prop Motor Current
Yes, I measured mine. I have it logged in my builders manual, but if I recall correctly, it peaked at about 13 amps. I am using 16 gauge wire, which is a bit small for this current load, so if you are using a larger gauge wire, yours could be stalling at higher amps.
It was such that at about ten amps, it was pretty much at the end point. I have intended to instrument this to an indicator much like you are talking about.
On 2/20/2014 4:39 PM, Hiroo Umeno wrote:
For IVO prop owners out there...
Do any of you have data on the current draw by the prop pitch adjust motor? The way it is set up, when the prop is at either end of travel, the motor bottoms out and pops the CB. I would like to incorporate a little more intelligent control into my version 3 electrical annunciator and distributor panel such that it will sense the rising current draw to determine the end of travel before the CB pops. Additionally, I can use the input from p-lead to determine engine RPM and run the prop more like a CS prop. The processor for the annunciator panel has a plenty of processing power to handle extra bits like this.
Hiroo
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