Delete comment from: Ken Shirriff's blog
Ken Shirriff said...
Thanks for the comments. LeMadChef: 12V converters would be interesting to examine; perhaps a future article. Waskita: to measure the power curve, I used a power mosfet as a variable load, and plotted the voltage and current with an oscilloscope as I changed the load. See footnote 16 for more details.
Oct 27, 2012, 6:56:21 PM
Posted to A dozen USB chargers in the lab: Apple is very good, but not quite the best

