I really prefer sensors made by these guys: http://www.lem.com
These are the sensors used in a number of VVF drives used in high reliability
applications.
N.C.
On 2012-Mar-18, at 13:00, Kirk Wallace wrote:
These look pretty handy:
http://www.pololu.com/catalog/product/1187
I'm thinking
These look pretty handy:
http://www.pololu.com/catalog/product/1187
I'm thinking about ways to add load sensing for drives that don't have
this feature yet. Also, I wonder if they are fast enough for PWM signal
control?
Digikey has some other models of these sensors but it seems for my
On Sun, 18 Mar 2012, Kirk Wallace wrote:
Date: Sun, 18 Mar 2012 10:00:19 -0700
From: Kirk Wallace kwall...@wallacecompany.com
Reply-To: Enhanced Machine Controller (EMC)
emc-users@lists.sourceforge.net
To: LinuxCNC Users List emc-users@lists.sourceforge.net
Subject: [Emc-users] Current
On Sun, 2012-03-18 at 10:15 -0700, Peter C. Wallace wrote:
... snip
Hall effect sensors are one way. They have the advantage of simplicity and
not
requiring floating power on top of the swited leg. TI makes some nice
isolated
current sensors (like the AMC1204)
current sense resistors
On 18 March 2012 19:00, Kirk Wallace kwall...@wallacecompany.com wrote:
These look pretty handy:
http://www.pololu.com/catalog/product/1187
I'm thinking about ways to add load sensing for drives that don't have
this feature yet. Also, I wonder if they are fast enough for PWM signal
control?
On 03/18/2012 10:00 AM, Kirk Wallace wrote:
Current can also be measured with an opamp measuring voltage across a
current sense resistor, but I'm worried about a common mode voltage in
the hundreds of Volts. Is there away to handle this?
You not only have to withstand the CM voltage, you have
Kirk Wallace wrote:
These look pretty handy:
http://www.pololu.com/catalog/product/1187
These look quite nice, the price is amazing! They should be fairly
fast to respond.
Jon
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On Sun, 18 Mar 2012, Jon Elson wrote:
Date: Sun, 18 Mar 2012 15:41:54 -0500
From: Jon Elson el...@pico-systems.com
Reply-To: Enhanced Machine Controller (EMC)
emc-users@lists.sourceforge.net
To: Enhanced Machine Controller (EMC) emc-users@lists.sourceforge.net
Subject: Re: [Emc-users