I am making a battery bank for portable LED projects. The battery bank has a 5V 12A (60W) DC to DC converter DDR-60L-5. I would like to add some extra (nice to have) USB Female plugs to this battery box for any USB device that I might need in the future.
I assumed I could connect the USB 5V(+) to DDR-60L-5 5V(+) and USB GND(-) to DDR-60L-5 GND(-) and that would be all that is required.
After reading this article How do I design a 2A or more power supply for my consumer USB devices? I found that I need a resistor network to tell the devices to use more current. After watching this video about Building the ultimate USB power distribution system I am worried about protection per port of the UBS charging. Reading this article I am told that I need to add filtering-caps between Vcc and GND. I am now a little overwhelmed with all the things I SHOULD do.
My question is:
- Is there an existing IC that I can use to add all the protections, high charging current, etc.. to a USB charging port?
- What is the absolute minimum I can safely do to create a simple USB charger port?
Edit: I am using this power bank to power 5V LEDs strips, 12v LEDs strips and other electronics projects. The USB charging port is a 'nice to have' since I already have 5V available in the battery pack.