Specifications

Kingwin PF-850 Features & Specs
Max. DC Output850W
PFCActive PFC
Efficiency80 PLUS Bronze
Operating temperature0°C - 50°C
ProtectionsOver Voltage Protection
Under Voltage Protection
Over Current Protection
Over Power Protection
Over Temperature Protection
Short Circuit Protection
Cooling135 mm Sleeve Bearing Fan 
(RL4Z S1352512HH)
Dimensions150 mm (W) x 86 mm (H) x 160 mm (D)
Weight2.1 kg
ComplianceATX12V v2.2, EPS 2.91
Warranty5 years
Price at time of review (exc. VAT)＄109.99






Kingwin PF-850 Power Specs
Rail3.3V5V12V5VSB-12V
Max. Power25A25A62.5A3A0.3A
150W750W15W3.6W
Total Max. Power850W





Cables & Connectors, Power Distribution

Native Cables
ATX connector (500mm)20+4 pin
4+4 pin EPS12V/ATX12V (550mm)1
8 pin EPS12V (550mm)1
Modular Cables
6+2 pin PCIe (450mm)4
SATA (450mm+150mm+150mm+150mm)8
4 pin Molex (450mm+150mm+150mm) / FDD(+150mm)6 / 2






Packaging





































































Exterior






















































A Look Inside & Component Analysis







































































































Primary Rails Voltage Regulation

























5VSB Regulation










Hold-up Time









Inrush Current






Voltage Regulation and Efficiency Measurements





Voltage Regulation & Efficiency Testing Data 
Kingwin PF-850
Test12 V5 V3.3 V5VSBPower
(DC/AC)		EfficiencyTemp
(In/Out)		PF/AC 
Volts
20% Load12.077A1.939A1.969A0.979A169.70W86.63%40.86°C0.877
12.269V5.137V3.345V5.089V195.89W47.21°C230.0V
40% Load24.572A3.904A3.972A1.181A339.65W88.97%41.31°C0.913
12.230V5.114V3.320V5.064V381.74W49.50°C230.0V
50% Load30.726A4.899A4.986A1.585A424.59W89.00%41.80°C0.919
12.209V5.100V3.307V5.034V477.06W50.60°C229.9V
60% Load36.906A5.884A6.008A1.996A509.56W88.66%42.56°C0.927
12.189V5.088V3.294V5.002V574.75W53.95°C229.9V
80% Load49.471A7.893A8.078A2.414A679.35W87.83%43.36°C0.944
12.149V5.062V3.267V4.964V773.50W55.20°C229.8V
100% Load62.756A8.925A9.155A3.053A849.12W86.43%44.90°C0.951
12.102V5.039V3.243V4.908V982.45W60.85°C229.7V
110% Load69.878A8.946A9.189A3.057A933.99W85.85%46.41°C0.955
12.083V5.027V3.232V4.901V1088.00W64.97°C229.6V
Crossload 11.964A18.009A18.001A0.502A177.72W81.04%43.38°C0.881
12.242V5.089V3.304V5.094V219.29W54.82°C230.0V
Crossload 262.461A1.000A1.002A1.001A771.24W87.64%44.55°C0.947
12.133V5.065V3.278V5.043V880.00W59.65°C229.7V




Efficiency














Efficiency at Low Loads




Efficiency at Low Loads 
Kingwin PF-850
Test #12 V5 V3.3 V5 VSBPower
(DC/AC)		EfficiencyPF/AC 
Volts
11.797A1.938A1.960A0.191A39.65W68.05%0.844
12.297V5.152V3.361V5.144V58.27W230.0V
23.353A1.939A1.963A0.386A59.78W75.53%0.864
12.293V5.151V3.359V5.132V79.15W229.9V
34.898A1.939A1.964A0.585A79.75W79.59%0.863
12.288V5.148V3.356V5.119V100.20W230.0V
46.444A1.939A1.964A0.780A99.71W82.12%0.867
12.284V5.146V3.355V5.105V121.42W230.0V



5VSB Efficiency




5VSB Efficiency
Kingwin PF-850
Test #5VSBPower (DC/AC)EfficiencyPF/AC Volts
10.102A0.53W66.25%0.059
5.162V0.80W230.6V
20.252A1.30W74.29%0.119
5.154V1.75W230.1V
31.002A5.12W77.69%0.281
5.109V6.59W230.8V
43.002A15.01W76.50%0.374
5.000V19.62W230.8V





Power Consumption in Idle & Standby




Idle / Standby 
Kingwin PF-850
Mode12 V5 V3.3 V5VSBPower (AC)PF/AC Volts
Idle12.313V5.151V3.373V5.165V15.24W0.564
230.7V
Standby0.12W0.009
230.6V




Fan RPM, Delta Temperature and Output Noise










+12V Voltage Regulation Chart






5V Voltage Regulation Chart






3.3V Voltage Regulation Chart






Efficiency Chart







+12V Ripple Chart






5V Ripple Chart






3.3V Ripple Chart







5VSB Ripple Chart






Advanced Transient Response Tests






Advanced Transient Response 20%
VoltageBeforeAfterChangePass/Fail
12 V12.267V12.146V0.99%Pass
5 V5.133V5.006V2.47%Pass
3.3 V3.346V3.190V4.66%Pass
5VSB5.090V5.039V1.00%Pass

















Advanced Transient Response 50%
VoltageBeforeAfterChangePass/Fail
12 V12.207V12.094V0.93%Pass
5 V5.097V4.955V2.79%Pass
3.3 V3.307V3.161V4.41%Pass
5VSB5.035V4.988V0.93%Pass





Transient Response at 20% Load













Transient Response at 50% Load














Turn-On Transient Tests












Ripple Measurements




Ripple Measurements
Kingwin PF-850
Test12 V5 V3.3 V5VSBPass/Fail
20% Load49.3 mV13.7 mV19.4 mV11.9 mVPass
40% Load59.5 mV16.5 mV21.0 mV13.9 mVPass
50% Load67.9 mV18.9 mV21.6 mV14.4 mVPass
60% Load77.1 mV18.4 mV22.9 mV15.2 mVPass
80% Load94.0 mV19.4 mV23.7 mV19.9 mVPass
100% Load106.1 mV20.7 mV24.3 mV23.6 mVPass
110% Load113.3 mV21.0 mV26.0 mV25.8 mVPass
Crossload 139.5 mV12.1 mV20.9 mV12.8 mVPass
Crossload 288.5 mV18.3 mV19.6 mV16.2 mVPass





Ripple at Full Load



















Ripple at 110% Load














Ripple at Crossload 1












Ripple at Crossload 2




















Performance Rating




Performance per Dollar









가치와 결론


  • Kingwin 전원 850 W가 ＄ 109.99소매 가격
  • 45 전체 전력 ° C
  • +12 V와 5V  전압 조절
  • 효율적인 (동 단위에 대한)
  • 5 년 보증
  • 일본 캡
  • +12 V 레일에 대한 높은 리플
  • 낮은 풀 - 업 시간
  • 팬
  • ATX, EPS, / PCIe 케이블


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