Result Analysis and Discussion
Efficiency 115V
|
| Load |
Pin(W) |
Pout(W) |
Efficiency |
| 10 % |
136.27 |
119.67 |
87.82 % |
| 20 % |
261.91 |
239.86 |
91.58 % |
| 50 % |
643.00 |
599.02 |
93.16 % |
| 100 % |
1302.90 |
1194.00 |
91.71 % |
The 80Plus Platinum certification
requirements (90% - 92% - 89%) are surpassed especially at 20% Load. At 100% load the efficiency scores a remarkable 91.71%.
Output Stability - Crossload |
| Load |
Rail |
Loading(A) |
Output(V) |
| 10 % |
5V |
1.60 |
5.054 |
| 3.3V |
1.60 |
3.385 |
| 12V1 |
1.91 |
12.023 |
| 12V2 |
2.46 |
12.026 |
| 12V3 |
1.91 |
12.027 |
| 12V4 |
2.46 |
12.026 |
|
|
| 20 % |
5V |
3.19 |
5.048 |
| 3.3V |
3.19 |
3.135 |
| 12V1 |
3.82 |
12.012 |
| 12V2 |
4.92 |
12.018 |
| 12V3 |
3.82 |
12.018 |
| 12V4 |
4.92 |
12.019 |
|
|
| 50 % |
5V |
7.98 |
5.023 |
| 3.3V |
7.98 |
3.355 |
| 12V1 |
9.56 |
11.976 |
| 12V2 |
12.29 |
11.994 |
| 12V3 |
9.56 |
11.992 |
| 12V4 |
12.29 |
11.997 |
|
|
|
100 % |
5V |
15.96 |
4.986 |
| 3.3V |
15.96 |
3.317 |
| 12V1 |
19.12 |
11.400 |
| 12V2 |
24.59 |
11.400 |
| 12V3 |
19.12 |
11.400 |
| 12V4 |
24.59 |
11.400 |
|
Noise |
| Load |
|
| 20 % |
inaudible |
| 50 % |
silent |
| 100 % |
audible |
Voltage regulation of
this PSU is very good. It makes use of a DC-DC approach, which means, that the 12
Volt rail is being used to generate 5 and 3.3V.
This is a very modern approach, and since the Load is mainly on 12V it makes a
lot of sense. Like most PSU, which use this topology, the voltage regulation and
crossload testing does not present a problem.
|
Noise/Ripple |
| Voltage |
Noise/Ripple Vpp |
| 100% |
| 5V |
0.025 |
| 12V |
0.032 |
| 3.3V |
0.019 |
| |
|
| 50% |
| 5V |
0.018 |
| 12V |
0.029 |
| 3.3V |
0.013 |
| |
|
| 20% |
| 5V |
0.014 |
| 12V |
0.038 |
| 3.3V |
0.015 |
| |
| 10% |
| 5V |
0.013 |
| 12V |
0.034 |
| 3.3V |
0.009 |
The noise/ripple values you can
see here come from a Chroma test report, which was provided by the manufacturer. The
noise values
are good and apparently they're all within the norms.
FSP Twinkle 65 Review 