TIDA-00173, 400-V to 690-V AC Input, 50-W Flyback Isolated Power Supply Reference Design for Motor Drives

Reference Design using part UCC28711D by Texas Instruments

Manufacturer

Texas Instruments
  • Application Category
    Power Supplies
  • Product Type
    DC to DC Multi-Output Power Supplies

Associated Documents

For End Products

  • AC Motor
  • Motion Motor Control

Description

  • TIDA-00173, 400-V to 690-V AC Input, 50-W Flyback Isolated Power Supply Reference Design for Motor Drives. This reference design provides isolated +24V (45W), 16 V (4.5W), and +6V (0.5W) outputs to power the control electronics in variable speed drives. The power supply can be either powered directly from 3-phase AC mains (380Vac to 690Vac) or can be powered from the DC-link voltage (400Vdc to 1200Vdc). This design uses a quasi-resonant flyback topology and is rated for 50-Watt total output power. The line and load regulation of the power supply is designed to be within 5% using primary-side regulation (eliminating costly feedback components)

Key Features

  • Conversion Type
    DC to DC
  • Input Voltage
    400 to 1200 V
  • Output Voltage
    24 V
  • Output Current
    2 A
  • Output Power
    48 W
  • Efficiency
    50 %
  • Topology
    Flyback- Quasi Resonant

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