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1.6kW, 80Plus Platinum Class, High efficiency Server AC-DC Power supply

This reference design provides design guide, data and other contents of 1.6kW 80Plus Platinum class power supply using Semi-bridgeless/Isolated phase shift full bridge.

Simple block diagram of 1.6kW, 80Plus Platinum class, high efficiency server AC-DC power supply .
Simple Block Diagram
Efficiency curves of 1.6kW, 80Plus Platinum class, high efficiency server AC-DC power supply .
Efficiency Curves


Input voltage AC 90 to 264 V
Output voltage DC12V
Output power 0.8 kW(AC 100V system input), 1.6 kW(AC 200V system input)
Circuit topology Semi-Bridgeless PFC, Phase-Shift Full-Bridge + Synchronous Rectification, Oring Circuit for Output


Features of 1.6kW, 80Plus Platinum class, high efficiency server AC-DC power supply .
  • 1U rack size high efficiency and high power output power supply
  • Total efficiency 93%(Vin=230V at 100% load condition)
  • Outline size : 307 mm x 133 mm x 43 mm(including the base plate under the PWB and the top plate covering over the heatsinks)
  • Provides appropriate power devices(MOSFET and SiC diode) and photocouplers totally

Reference design files

Design, Document

“Design・Document” contains the documents listed below.

Name Date

Design, File

Name Date
*1:Actual PCB was designed on CR5000BD.
   The other files were made from CR5000BD file.
*2:The data was generated on CR5000BD.

Toshiba items

Part Number Device Category Portion Usage Description
TK25N60X MOSFET PFC・4 DTMOSIV/600V/140mΩ(max)@VGS=10V/High-speed switching type/TO-247
TRS8E65F SiC schotkky barrier diode PFC・2 Second generation/650V/8A/TO-220-2L
TK25N60X5 MOSFET Primary side・4 DTMOSIV/600V/140mΩ(max)@VGS=10V/High-speed switching type/High-sped diode type/TO-247
TPH3R70APL MOSFET Secondary side・8 U-MOSIX-H/100V/3.7mΩ(max)@VGS=10V/High-speed switching type/SOP Advance
TPHR9003NC MOSFET Oring・10 U-MOSVIII/30V/0.9mΩ(max)@VGS=10V/SOP Advance
TLP2767 Photocoupler Communication between primary side and secondary side・4 For high-speed communications/50Mbps/Totempole output(INV)/5pin SO6L




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