Also, why was the output 4.7-5V, and why did my scope say 5.5V ... Check out a much more thorough analysis of this and pretty much every USB power supply cube by [Ken Shirriff].
Also, why was the output 4.7-5V, and why did my scope say 5.5V ... Check out a much more thorough analysis of this and pretty much every USB power supply cube by [Ken Shirriff].