PSU "Corsair 750TX (path APFC+FB)"


Check on a loading direct current.

DC Load

220Vac (current)

CPU

VGA:GPU

VGA:RAM

+5V

CPU=25W
VGA=25W
+5V=20W

CPU=50W
VGA=25W
+5V=24W

CPU=35W
VGA=40W
+5V=24W

CPU=70W
VGA=40W
+5V=28W

CPU=45W
VGA=50W
+5V=28W

CPU=90W
VGA=50W
+5V=32W

CPU=55W
VGA=75W
+5V=32W

CPU=110W
VGA=75W
+5V=36W

CPU=65W
VGA=100W
+5V=36W

CPU=130W
VGA=100W
+5V=40W

CPU=75W
VGA=150W
+5V=40W

CPU=150W
VGA=150W
+5V=44W

CPU=75W
VGA=200W
+5V=44W

CPU=150W
VGA=200W
+5V=44W

CPU=75W
VGA=300W
+5V=44W

CPU=150W
VGA=300W
+5V=44W

CPU=75W
VGA=400W
+5V=44W

CPU=150W
VGA=400W
+5V=44W

CPU=75W
VGA=500W
+5V=44W

CPU=150W
VGA=500W
+5V=44W

CPU=75W
VGA=600W
+5V=44W



Check on a pulse current of loading.

Impulse Load

220Vac (current)

CPU 50-100%, 100Hz

VGA:GPU 40-100%, 200Hz

VGA:RAM 60-100%, 400Hz

+5V 80-100%, 800Hz

CPU=25W
VGA=25W
+5V=20W

CPU=50W
VGA=25W
+5V=24W

CPU=35W
VGA=40W
+5V=24W

CPU=70W
VGA=40W
+5V=28W

CPU=45W
VGA=50W
+5V=28W

CPU=90W
VGA=50W
+5V=32W

CPU=55W
VGA=75W
+5V=32W

CPU=110W
VGA=75W
+5V=36W

CPU=65W
VGA=100W
+5V=36W

CPU=130W
VGA=100W
+5V=40W

CPU=75W
VGA=150W
+5V=40W

CPU=150W
VGA=150W
+5V=44W

CPU=75W
VGA=200W
+5V=44W

CPU=150W
VGA=200W
+5V=44W

CPU=75W
VGA=300W
+5V=44W

CPU=150W
VGA=300W
+5V=44W

CPU=75W
VGA=400W
+5V=44W

CPU=150W
VGA=400W
+5V=44W

CPU=75W
VGA=500W
+5V=44W

CPU=150W
VGA=500W
+5V=44W

CPU=75W
VGA=600W
+5V=44W


ATX2_14.vi

Load Results

Max

Min

Delta

Peak Max

Peak Min

Peak Delta

Impedance, mOm

CPU

12,03

11,96

0,08

12,19

11,74

0,45

3,7

VGA:GPU

12,02

11,94

0,09

12,21

11,71

0,50

4,8

VGA:MEM

12,02

11,96

0,06

12,14

11,82

0,32

2,6

+5V

5,12

5,08

0,05

5,16

5,01

0,15

1,5*
* - The number can be inexact.


Influence of interferences in a primary source on power supply unit operation.



220V sinus

220Vac (current)

CPU

VGA:GPU

VGA:RAM

+5V

CPU=79W
VGA=391W
+5V=30W

220V meander

220Vac (current)

CPU

VGA:GPU

VGA:RAM

+5V

CPU=79W
VGA=391W
+5V=30W

220V failure

220Vac (current)

CPU

VGA:GPU

VGA:RAM

+5V

CPU=79W
VGA=391W
+5V=30W

CPU=79W
VGA=391W
+5V=30W

CPU=79W
VGA=391W
+5V=30W

CPU=79W
VGA=391W
+5V=30W

HDD Emulation 5A

CPU

VGA:GPU

VGA:RAM

+5V

CPU=79W
VGA=391W
+5V=30W

CPU=79W
VGA=391W
+5V=30W

CPU=79W
VGA=391W
+5V=30W

CPU=79W
VGA=391W
+5V=30W


ATX2_14.vi

Mode

Peak Current

Efficiency

CPU noise

VGA:GPU noise

VGA:RAM noise

+5V noise

1: 220Vac sinus

3,9A

86,9%

0,021V

0,012V

0,014V

0,007V

2: 220Vac meander

6,1A

86,8%

0,055V

0,014V

0,013V

0,010V

3: 187-242V (random)

7,6A

-

0,029V

0,014V

0,017V

0,010V

4: 220V failure

4,2A

-

0,023V

0,014V

0,014V

0,015V

HDD emulation (5A)

4,0A

-

0,091V

0,081V

0,078V

0,015V
The maximum time of absence of 220Vac = 0,025s


Measurement of currents of consumption and efficiency of channels.

Mode

220Vac

Efficiency

OFF

0,3W

-

ON

9,7W

-

206W

245W

84,1%

5Vsb=6W

-

64,4%

5Vsb=10W

-

72,1%

3.3V=20W

-

66,9%

5V=+30W

-

92,4%

12V=+176W

-

88,7%