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
purposes,
On 18 March 2012 19:00, Kirk Wallace 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?
>
> Digikey has some
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 think
On Sun, 18 Mar 2012, Kirk Wallace wrote:
> Date: Sun, 18 Mar 2012 10:00:19 -0700
> From: Kirk Wallace
> Reply-To: "Enhanced Machine Controller (EMC)"
>
> To: LinuxCNC Users List
> Subject: [Emc-users] Current Sensors
>
> These look pretty handy:
>
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 resis
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 hav
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
> Reply-To: "Enhanced Machine Controller (EMC)"
>
> To: "Enhanced Machine Controller (EMC)"
> Subject: Re: [Emc-users] Current Sensors
>
> Ki
