1.6 kW 48 V Output Telecommunication Equipment Power Supply

This reference design provides design guide, data and other contents of 1.6 kW 48 V output power supply using semi-bridgeless PFC and isolated phase-shift full-bridge DC-DC converter.

Simple block diagram of 1.6 kW 48 V output telecommunication equipment power supply.
Simple Block Diagram
Efficiency curves of 1.6 kW 48 V output telecommunication equipment power supply.
Efficiency Curves

說明

Input voltage AC 90 to 264 V
Output voltage DC 48 V
Output power 0.8 kW (AC 100 V system input), 1.6 kW (AC 200 V system input)
Circuit topology Semi-Bridgeless PFC, Phase-Shift Full-Bridge + Synchronous Rectification, Oring Circuit for Output

Features

Exterior photo of 1.6 kW 48 V output telecommunication equipment power supply.
  • 1U rack size high efficiency high power output power supply
  • Output voltage 48 V
  • Total efficincy:94.6 % (Vin = 230V at 100 % load condition)
  • Outline size:318 mm x 127 mm x 43 mm (including the base plate under the PCB and 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.

名稱

Design, File

“Design・File” contains the contents listed below.

*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・2

DTMOSIV/600 V/125 mΩ (max) @VGS = 10 V/TO-247

TRS8A65F

SiC schotkky barrier diode

PFC・2

Second generation/650 V/8 A/TO-220F-2L

TK25N60X5

MOSFET

Primary side・4

DTMOSIV/600 V/140 mΩ (max) @VGS = 10 V/High-speed diode type/TO-247

TPH2900ENH

MOSFET

Secondary side・8

U-MOSVIII-H/200 V/29 mΩ (max) @VGS = 10 V/SOP Advance

TPH2R408QM

MOSFET

Oring・4

U-MOSX-H/80 V/2.43 mΩ (max) @VGS = 10 V/SOP Advance

TLP2767

Photocoupler

Communication between primary side and secondary side・4

For high-speed communicaton/50 Mbps/Totem-pole ouput (INV)/5pin SO6L

文件

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