I am looking for an opinions around using a buck converter to power a Photon.
The project I have build uses a 12v 2A power supply. The 12 volts is needed by other devices which is controlled using transistors. To step down the voltage to the Photon I am using an MP1584EN step-down buck converter module. The device is rated to 3A (1.8 typical). The output of the buck converter is connected to
According to the specs the buck's output ripple frequency is 340KHz with a voltage of 30mv. Is this enough to effect the operation of the Photon or cause other side affects? My oscilloscope is not working so I am unable to measure actual from the device.
Would it make any different to add a capacitor to the output? I worry at that frequency about possible low resistance issues.
I did notice that my multimeter does read frequency, and verified my outlet is at 60Hz (as a test). The measured frequency of the buck output is negligible, though that may also due to the very low voltage of the ripple.
I haven't used buck converters in the past so I am not sure if external components are usually needed. The devices purchased weren't that expensive but have held a very reliable voltage over many days of use and test loads.
Thank you for any feedback.