I have an arduino controlling a stepper motor and a camera.
The camera is plugged into its own mains power adapter which is 9V 1A.
I want the camera to use the same power rail on the arduino which is using a 12V 1A power adapter, as I want to save clutter with cables.
How do I step down the 12V 1A currently powering the arduino to 9V 1A for the camera? Do I need one of these or similar?
Thanks.
Bassquake:
I have an arduino controlling a stepper motor and a camera.The camera is plugged into its own mains power adapter which is 9V 1A.
I want the camera to use the same power rail on the arduino which is using a 12V 1A power adapter, as I want to save clutter with cables.
How do I step down the 12V 1A currently powering the arduino to 9V 1A for the camera? Do I need one of these or similar?
Thanks.
Running a camera on 9 volts seems strange to me. Are you sure it CANNOT be operated on 12 volts?
Paul
Buy a high quality 9V/1A step down regulator here.
Switching regulators trade current for voltage, so it will draw less than 1A from the 12V power supply.
What stepper and driver? Most draw more than 1 A.
The amount of current is determined by the device consuming the power. not by the device producing it. The producing device must provide at least as much as the consuming device needs, but it does not matter if the consuming device can produce a lot more current.
The important thing is to match the voltage to the consuming device's specification - a higher voltage may damage internal components.
...R
The camera is a samsung nx1000. Any higher than 9v 1A will likely damage it.
The arduino is running an easy driver and a nema 17 stepper motor.
Let me know if any more details needed. Thanks.
What makes you think that your 12V 1A power supply can provide enough current for both the stepper motor/driver AND the camera? Even without details of exactly what stepper you are using it seems unlikely.
Steve
slipstick:
What makes you think that your 12V 1A power supply can provide enough current for both the stepper motor/driver AND the camera? Even without details of exactly what stepper you are using it seems unlikely.Steve
Actually it probably wont! Considering the step-down regulator recommended earlier is also very expensive, Ill stick with having 2 power adapters.
Thanks.
Bassquake:
The camera is a samsung nx1000. Any higher than 9v 1A will likely damage it.
If the specification says 9v then, yes, any higher than 9v will cause problems.
But as far as the camera concerned 9v and 1amp is no better than 9v and 100 amps. It will just take the amount of amps it needs.
...R
A 7809 linear regulator (on a heatsink) will drop 12V down to 9V upto 1A.
A LM2596 DC-DC converter can do the same job (and they are almost as cheap on eBay), but
with less heat generation. Be sure to set it to the right output voltage of course...