Antec EarthWatts EA 380D Green 380Wby Martin Kaffei on October 2, 2010 7:00 PM EST
Ripple & Noise
There are no significant overshoots visible in the graphs. The fundamental oscillation is minor as well, which means very low ripple & noise. In addition the voltage always regulates itself around the same value. +5V reaches 10-25 mV at 100% to 110% load in our tests. The result at +3.3V is just marginally higher. 70 mV on the stressed +12V rail is just above 50% of the allowed tolerance. Here we have shown the worst case and the measurements are representative, so the results are fine. During all of the tests the oscilloscope showed no noticeable transients of the voltage.