On 8/21/22 03:57, andrew beck wrote:
I'm trying to convert these color sensors
US $50.00 | Color Mark Sensor HW-111 Use for Packing Machine voltage 12-24v
DC NPN metal case Photoelectric Eyes Marks
https://a.aliexpress.com/_mtEjRmc
To pnp.
I converted similar sensors with a 10k resistor.
On Sun, 21 Aug 2022 at 08:57, andrew beck wrote:
>
> I'm trying to convert these color sensors
>
> US $50.00 | Color Mark Sensor HW-111 Use for Packing Machine voltage 12-24v
> DC NPN metal case Photoelectric Eyes Marks
> https://a.aliexpress.com/_mtEjRmc
>
>
> To pnp.
Well, you can't
On 8/21/22 03:44, Robin Szemeti via Emc-users wrote:
The output is open collector NPN ... so if you need PNP (why?) then just
use a PNP transistor like so:
No, that will cause excessive base current in the PNP
transistor. You need about a 10K resistor in series with
the PNP' base wire.
The output is open collector NPN ... so if you need PNP (why?) then just
use a PNP transistor like so:
[image: image.png]
But why do you think you need PNP output? The device has an open collector
NPN output, just hook a resistor to whatever voltage you need (if your
system is using 24V for
I'm trying to convert these color sensors
US $50.00 | Color Mark Sensor HW-111 Use for Packing Machine voltage 12-24v
DC NPN metal case Photoelectric Eyes Marks
https://a.aliexpress.com/_mtEjRmc
To pnp.
I converted similar sensors with a 10k resistor.
US $2.37 5%OFF | CHUX Proximity
