TIDT436 March   2025

 

  1.   1
  2.   Description
  3.   Features
  4.   Applications
  5. 1Test Prerequisites
    1. 1.1 Voltage and Current Requirements
    2. 1.2 Required Equipment
    3. 1.3 Considerations
    4. 1.4 Dimensions
    5. 1.5 Test Setup
  6. 2Testing and Results
    1. 2.1 Efficiency Graphs
    2. 2.2 Efficiency Data
    3. 2.3 Thermal Images
    4. 2.4 Bode Plots
  7. 3Waveforms
    1. 3.1 Switching
    2. 3.2 Output Voltage Ripple
    3. 3.3 Load Transients

Description

This reference design is a digitally controlled 3.6kW, 54V, single-phase, AC-to-DC rectifier with all GaN switches. This design is a demonstration for modular hardware system common redundant power supply (M-CRPS) with standard form factor. The input stage chooses a single-phase, totem-pole bridgeless power factor correction (PFC), and the output stage chooses a full-bridge, inductor-inductor-capacitor (FB LLC) converter with full-bridge synchronous rectifier (FB SR). The LLC stage efficiency achieved 98.5% at the half load, and the PFC stage efficiency achieved 98.92% at the half load.