M
Mike V
- Jan 1, 1970
- 0
I've been asked to add 2 USB power outputs to a product to allow
ipods, phones, cameras etc to be charged.
Sounds easy. USB specs 5V, 500mA max per output. So the obvious
solution is a 5V 1A regulator driving 2 USB connectors in parallel.
But is it that easy? Do USB peripherals need to talk to the power
supply? Do the outputs need to be independant:? What else don't I
know? I'm getting concerned about the unknown unknowns.
Any useful thoughts welcome.
ipods, phones, cameras etc to be charged.
Sounds easy. USB specs 5V, 500mA max per output. So the obvious
solution is a 5V 1A regulator driving 2 USB connectors in parallel.
But is it that easy? Do USB peripherals need to talk to the power
supply? Do the outputs need to be independant:? What else don't I
know? I'm getting concerned about the unknown unknowns.
Any useful thoughts welcome.