CYBENETICS LTD Syrou 6, Latsia, 2231, Nicosia Cyprus
Zalman EBT 750W
Serial Number20756F1000642
Lab ID126
  • Report:
  • Receipt Date: May 31, 2018
  • Test Date: Jun 13, 2018
  • Report Date: Jun 15, 2018
115V230V
Efficiency Rating
115V230V
Noise Rating
Aristeidis Bitziopoulos, Laboratory General Manager

General Information

DUT Information

BrandZalman
Manufacturer (OEM)Sirfa
SeriesEBT
Model NumberZM750-EBT
Serial Number20756F1000642
DUT Notes

DUT Specifications

Rated Voltage (Vrms)100-240
Rated Current (Arms)10
Rated Frequency (Hz)50-60
Rated Power (W)750
TypeATX12V
Cooling135mm Fluid Dynamic Bearing Fan
(RL4Z S1352512H)
Semi-Passive Operation✗
Cable DesignSemi Modular

Power Specifications

Rail 3.3V 5V 12V 5VSB -12V
Max. Power Amps 22 22 62.5 3 0.3
Watts 120 750 15 3.6
Total Max. Power (W) 750

Test Equipment

Electronic Loads Chroma 6314A x2
63123A x6
63102A
63101A		 Chroma 63601-5 x2
Chroma 63600-2
63640-80-80 x10
63610-80-20
AC Sources Chroma 6530, Chroma 61604
Power Analyzers N4L PPA1530, N4L PPA5530
Oscilloscopes Picoscope 4444 & 3424, Keysight DSOX3024A, Rigol DS2072A
Voltmeter Keithley 2015 THD 6.5 Digit
Sound Analyzer Bruel & Kjaer 2250-L G4
Microphone Bruel & Kjaer Type 4189
Data Loggers Picoscope TC-08 x2, Labjack U3-HV x2
Testing Methodology Cybenetics PSU Test Protocol

Cables and Connectors

Native Cables
Description Cable Count Connector Count (Total) Gauge
ATX connector 20+4 pin (510mm) 1 1 18-22AWG
4+4 pin EPS12V (660mm) 1 1 18AWG
6+2 pin PCIe (510mm+150mm) 1 2 18AWG
Modular Cables
6 pin PCIe (+510mm) 2 2 18AWG
SATA (465mm+150mm+150mm+150mm) 2 8 18AWG
4 pin Molex (460mm+150mm+150mm) 1 3 18AWG
4 pin Molex (460mm+150mm+150mm) / FDD (+150mm) 1 3 / 1 18-22AWG

Parts Description

Primary Side
Transient Filter 4x Y caps, 2x X caps, 2x CM chokes, 1x MOV, 1x CMD02X
Inrush Protection NTC Thermistor & Relay
Bridge Rectifier(s) 1x
APFC MOSFETS 2x Infineon IPP50R140CP (550V, 15A @ 100°C, 0.14 Ohm )
APFC Boost Diode 1x CREE C3D08060A (600V, 8A @ 152°C)
Hold-up Cap(s) 1x Nippon Chemi-Con (400V, 470uF, 2000h @ 105°C, KMQ)
Main Switchers 2x Infineon IPA50R190CE
(550V, 11.7A @ 100°C, 0.19 Ohm)
APFC Controller Infineon ICE3PCS01
Switching Controller Infineon ICE2HS01G
Topology Primary side: Half-Bridge & LLC Resonant Converter
Secondary side: Synchronous Rectification & DC-DC converters
Secondary Side
+12V MOSFETS 4x  IRFB743PbF (40V, 180A @ 100°C, 2.0 mOhm)
5V & 3.3V DC-DC Converters: 8x Infineon IPD060N03L G (30V, 50A @ 100°C, 6 mOhm)
PWM Controller: Anpec APW7159
Filtering Capacitors Electrolytics: Teapo (105°C)
Polymers:Teapo
Supervisor IC SITI PS223 (OVP, UVP, OCP, SCP, OTP )
Fan Model Globe Fan RL4Z S1352512H
(135mm, 12V, 0.33A, 1550 RPM, Sleeve Bearing)
5VSB Circuit
Standby PWM Controller A6069H

Test Results

Temperature & Compliance Info

Temperature Range (°C /°F)30-32 / 86-89.6
ErP Lot 3/6 ReadyErP Lot 6 2010: ✓
ErP Lot 6 2013: ✓
ErP Lot 3 2014: Partially
(EU) No 617/2013 Compliance✓

Performance Summary

Hold-Up Time & Power Ok Signal

Hold-Up Time (ms)9.2
AC Loss to PWR_OK Hold Up Time (ms)24.2
PWR_OK Inactive to DC Loss Delay (ms)-15

Vampire Power

Graphs

INFO

This graph is generated by the PPA Standby Power Analysis software which takes full control of the power analyzer during the whole procedure. This application features all of the EN50564 & IEC62301 test limits for standby power software testing.

INFO

This graph is generated by the PPA Standby Power Analysis software which takes full control of the power analyzer during the whole procedure. This application features all of the EN50564 & IEC62301 test limits for standby power software testing.

Efficiency Graph

INFO

This graph depicts the PSU`s efficiency throughout its entire operational range. For the generation of the efficiency and noise graphs we set our loaders to auto mode through our custom-made software before trying thousands of possible load combinations.

INFO

This graph depicts the PSU`s efficiency throughout its entire operational range. For the generation of the efficiency and noise graphs we set our loaders to auto mode through our custom-made software before trying thousands of possible load combinations.

Noise Graph

INFO

The PSU`s noise in its entire operational range and under 30-32 °C ambient is depicted in this graph. The X axis represents the load on the +12V rail(s) while the Y axis is the load on the minor rails.

INFO

The PSU`s noise in its entire operational range and under 30-32 °C ambient is depicted in this graph. The X axis represents the load on the +12V rail(s) while the Y axis is the load on the minor rails.

Indicative Performance

Efficiency under high ambient temperature

INFO

The PSU`s efficiency under high ambient temperatures with 115V and 230V input. For this graph the results of the 10-110% load regulation table are used.

5VSB Efficiency

INFO

This graph depicts the efficiency levels of the 5VSB rail with 115V and 230V input.

5VSB Efficiency (ERP LOT 3/6 & CEC)

Test # 5VSB DC/AC (Watts) Efficiency PF/AC Volts
1 0.042A 0.216 62.791% 0.049
5.187V 0.344 115.18V
2 0.087A 0.452 70.515% 0.088
5.186V 0.641 115.18V
3 0.542A 2.808 78.458% 0.271
5.179V 3.579 115.14V
4 1.002A 5.184 78.880% 0.319
5.173V 6.572 115.15V
5 1.502A 7.759 78.828% 0.343
5.167V 9.843 115.16V
6 3.002A 15.440 77.042% 0.381
5.144V 20.041 115.17V
Test # 5VSB DC/AC (Watts) Efficiency PF/AC Volts
1 0.042A 0.216 52.174% 0.018
5.187V 0.414 230.43V
2 0.087A 0.453 62.140% 0.031
5.186V 0.729 230.44V
3 0.542A 2.808 73.643% 0.143
5.179V 3.813 230.43V
4 1.002A 5.184 76.743% 0.210
5.174V 6.755 230.43V
5 1.502A 7.759 77.909% 0.255
5.167V 9.959 230.43V
6 3.001A 15.448 77.605% 0.320
5.147V 19.906 230.43V

Supplementary Tests (For Reference)

Typical Load Tests

Test # 12V 5V 3.3V 5VSB DC/AC (Watts) Efficiency Fan Speed (RPM) Fan Noise (dB[A]) Temps (In/Out) PF/AC Volts
1 4.317A 1.975A 1.960A 0.965A 74.758 82.160% 1388 38.6 38.63°C 0.983
12.314V 5.073V 3.367V 5.161V 90.991 41.62°C 115.19V
2 9.670A 2.960A 2.949A 1.165A 149.786 87.565% 1396 38.8 38.91°C 0.993
12.297V 5.061V 3.356V 5.148V 171.056 42.13°C 115.19V
3 15.373A 3.468A 3.462A 1.360A 224.864 89.187% 1352 40.9 39.39°C 0.996
12.280V 5.051V 3.345V 5.137V 252.131 42.86°C 115.19V
4 21.081A 3.966A 3.954A 1.560A 299.709 89.650% 1520 39.2 39.94°C 0.997
12.264V 5.040V 3.336V 5.124V 334.311 43.78°C 115.19V
5 26.474A 4.975A 4.961A 1.761A 374.700 89.567% 1578 42.4 40.52°C 0.998
12.246V 5.028V 3.323V 5.110V 418.345 44.76°C 115.19V
6 31.876A 5.984A 5.974A 1.961A 449.606 89.205% 1616 41.9 41.08°C 0.998
12.229V 5.015V 3.313V 5.096V 504.013 45.93°C 115.19V
7 37.297A 7.003A 6.998A 2.161A 524.591 88.652% 1685 42.5 41.96°C 0.998
12.212V 5.004V 3.300V 5.083V 591.742 47.57°C 115.19V
8 42.730A 8.020A 8.020A 2.365A 599.472 87.929% 1704 43.7 43.05°C 0.998
12.195V 4.989V 3.289V 5.070V 681.765 49.76°C 115.19V
9 48.607A 8.541A 8.565A 2.370A 674.470 87.126% 1704 43.7 44.33°C 0.998
12.177V 4.977V 3.279V 5.059V 774.135 51.91°C 115.18V
10 54.241A 9.063A 9.082A 2.974A 749.255 86.052% 1715 44.2 45.27°C 0.998
12.160V 4.966V 3.269V 5.040V 870.703 53.91°C 115.19V
11 60.475A 9.079A 9.107A 2.978A 823.963 84.926% 1704 43.7 46.01°C 0.998
12.142V 4.957V 3.260V 5.031V 970.215 55.30°C 115.18V
CL1 0.098A 14.026A 14.003A 0.004A 118.306 81.238% 1704 43.7 43.67°C 0.992
12.276V 5.026V 3.327V 5.144V 145.629 48.46°C 115.20V
CL2 62.444A 1.004A 1.003A 1.002A 772.854 86.345% 1715 44.2 45.67°C 0.998
12.162V 4.995V 3.294V 5.081V 895.076 53.73°C 115.19V

The results above are not used in the certification process

Test # 12V 5V 3.3V 5VSB DC/AC (Watts) Efficiency Fan Speed (RPM) PSU Noise (dB[A]) Temps (In/Out) PF/AC Volts
1 4.316A 1.960A 1.968A 0.970A 74.568 83.673% 1388 38.6 38.33°C 0.863
12.270V 5.104V 3.357V 5.155V 89.118 42.59°C 230.88V
2 9.675A 2.946A 2.959A 1.167A 149.471 88.772% 1367 39.7 39.12°C 0.953
12.254V 5.094V 3.347V 5.143V 168.377 43.58°C 230.84V
3 15.440A 3.441A 3.446A 1.364A 224.986 90.541% 1565 42.1 40.18°C 0.977
12.240V 5.085V 3.338V 5.132V 248.490 44.85°C 230.61V
4 21.152A 3.942A 3.968A 1.563A 299.802 91.139% 1600 42.1 40.85°C 0.984
12.225V 5.076V 3.328V 5.120V 328.952 45.81°C 230.84V
5 26.550A 4.938A 4.975A 1.762A 374.698 91.154% 1670 42.4 42.16°C 0.989
12.210V 5.066V 3.318V 5.108V 411.060 47.61°C 230.79V
6 31.962A 5.937A 5.989A 1.963A 449.633 91.000% 1704 43.7 42.72°C 0.992
12.196V 5.055V 3.308V 5.095V 494.100 48.69°C 230.72V
7 37.420A 6.942A 7.009A 2.165A 524.939 90.711% 1704 43.7 43.21°C 0.993
12.181V 5.044V 3.297V 5.082V 578.696 49.94°C 230.67V
8 42.894A 7.949A 8.035A 2.368A 600.262 90.271% 1704 43.7 44.67°C 0.995
12.166V 5.033V 3.286V 5.069V 664.955 51.67°C 230.61V
9 48.748A 8.463A 8.547A 2.373A 674.802 89.750% 1704 43.7 45.57°C 0.996
12.150V 5.023V 3.276V 5.059V 751.872 52.88°C 230.65V
10 54.408A 8.981A 9.097A 2.977A 750.032 88.895% 1704 43.7 46.17°C 0.996
12.136V 5.013V 3.266V 5.040V 843.725 54.91°C 230.58V
11 60.681A 8.998A 9.121A 2.984A 825.257 87.815% 1704 43.7 46.45°C 0.997
12.121V 5.004V 3.257V 5.030V 939.763 55.69°C 230.35V
CL1 0.147A 14.005A 14.001A 0.000A 119.357 82.997% 1685 42.5 42.42°C 0.933
12.235V 5.067V 3.328V 5.141V 143.809 48.20°C 231.04V
CL2 62.520A 1.001A 1.001A 1.000A 772.150 89.342% 1704 43.7 45.09°C 0.996
12.136V 5.037V 3.284V 5.078V 864.267 53.93°C 230.59V

The results above are not used in the certification process

Light Load Tests

Test # 12V 5V 3.3V 5VSB DC/AC (Watts) Efficiency Fan Speed (RPM) Fan Noise (dB[A]) PF/AC Volts
1 1.181A 0.490A 0.471A 0.191A 19.623 62.697% 1205 33.1 0.925
12.321V 5.084V 3.378V 5.180V 31.298 115.19V
2 2.390A 0.983A 0.975A 0.386A 39.728 76.394% 1254 34.1 0.974
12.321V 5.080V 3.374V 5.175V 52.004 115.20V
3 3.603A 1.468A 1.481A 0.581A 59.826 80.711% 1230 34.3 0.979
12.318V 5.075V 3.370V 5.169V 74.124 115.19V
4 4.808A 1.976A 1.957A 0.771A 79.791 83.117% 1272 34.5 0.985
12.313V 5.071V 3.367V 5.163V 95.998 115.20V

The results above are not used in the certification process

Test # 12V 5V 3.3V 5VSB DC/AC (Watts) Efficiency Fan Speed (RPM) PSU Noise (dB[A]) PF/AC Volts
1 1.182A 0.490A 0.474A 0.194A 19.614 63.310% 1200 32.8 0.548
12.274V 5.114V 3.366V 5.173V 30.981 230.92V
2 2.425A 0.978A 0.982A 0.387A 40.064 76.202% 1318 35.8 0.721
12.274V 5.111V 3.363V 5.167V 52.576 230.92V
3 3.598A 1.470A 1.458A 0.581A 59.560 81.799% 1254 34.1 0.814
12.272V 5.107V 3.360V 5.162V 72.813 230.90V
4 4.836A 1.960A 1.966A 0.776A 79.931 84.733% 1340 36.0 0.875
12.268V 5.104V 3.356V 5.157V 94.333 230.88V

The results above are not used in the certification process

Ripple Measurements

Test 12V 5V 3.3V 5VSB Pass/Fail
10% Load 17.9 mV 13.5 mV 12.2 mV 15.9 mV Pass
20% Load 22.7 mV 19.7 mV 15.5 mV 18.9 mV Pass
30% Load 27.6 mV 24.8 mV 18.7 mV 23.7 mV Pass
40% Load 33.4 mV 28.0 mV 22.0 mV 28.1 mV Pass
50% Load 37.3 mV 31.5 mV 27.3 mV 32.4 mV Pass
60% Load 41.8 mV 34.4 mV 35.4 mV 36.7 mV Pass
70% Load 48.2 mV 39.4 mV 36.7 mV 42.7 mV Pass
80% Load 53.8 mV 45.5 mV 39.1 mV 48.8 mV Pass
90% Load 64.6 mV 46.6 mV 40.5 mV 54.9 mV Fail
100% Load 80.3 mV 55.2 mV 46.0 mV 67.9 mV Fail
110% Load 97.5 mV 63.3 mV 63.7 mV 80.5 mV Fail
Crossload 1 26.7 mV 27.8 mV 26.2 mV 35.1 mV Pass
Crossload 2 84.6 mV 53.8 mV 45.8 mV 58.9 mV Fail

The results above are not used in the certification process

Test 12V 5V 3.3V 5VSB Pass/Fail
10% Load 12.5 mV 12.6 mV 9.3 mV 13.5 mV Pass
20% Load 15.2 mV 17.2 mV 13.8 mV 17.8 mV Pass
30% Load 18.7 mV 23.5 mV 17.4 mV 22.1 mV Pass
40% Load 23.3 mV 29.7 mV 20.4 mV 24.8 mV Pass
50% Load 26.4 mV 38.8 mV 23.8 mV 28.8 mV Pass
60% Load 31.3 mV 43.3 mV 28.0 mV 32.0 mV Pass
70% Load 35.8 mV 37.4 mV 29.5 mV 37.1 mV Pass
80% Load 41.4 mV 42.4 mV 31.6 mV 42.1 mV Pass
90% Load 52.2 mV 46.0 mV 35.9 mV 49.3 mV Pass
100% Load 67.1 mV 62.2 mV 46.2 mV 62.6 mV Fail
110% Load 99.9 mV 64.6 mV 51.3 mV 87.8 mV Fail
Crossload 1 16.3 mV 21.4 mV 19.8 mV 32.7 mV Pass
Crossload 2 71.0 mV 50.9 mV 44.2 mV 56.0 mV Fail

The results above are not used in the certification process

Zalman EBT 750W

Top side
Power specifications label
All data and graphs included in this test report can be used by any individual on the following conditions:
› It should be mentioned that the test results are provided by Cybenetics
› The link to the original test results document should be provided in any case
Cybenetics offers the ETA and Lambda voluntary certification programs, through which the efficient and silent power supplies are promoted
CYBENETICS LTD Syrou 6, Latsia, 2231, Nicosia Cyprus
www.cybenetics.com - info@cybenetics.com