TIDT348 august   2023

 

  1.   1
  2.   Description
  3.   Features
  4.   Applications
  5. 1Test Prerequisites
    1. 1.1 Voltage and Current Requirements
  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 Waveforms
    2. 3.2 Output Voltage Ripple
    3. 3.3 Load Transients
    4. 3.4 Start-Up Sequence

Bode Plots

The following measurements show the loop response of the ZVS flyback at different AC input voltages and the 12-V output loaded to 1.5 A.

GUID-20230814-SS0I-XDS0-T7R7-0XPQMNFQVDSC-low.png Figure 2-7 90-Vac Input ZVS Flyback Loop Measurement
GUID-20230814-SS0I-3XDJ-LL3X-BZV9PDTXRR47-low.png Figure 2-8 115-Vac Input ZVS Flyback Loop Measurement
GUID-20230814-SS0I-JHV6-SXJQ-4MFLX5B1LJ3S-low.png Figure 2-9 230-Vac Input ZVS Flyback Loop Measurement
GUID-20230814-SS0I-NSJL-KQ3H-TQTVGWTMRXDM-low.png Figure 2-10 265-Vac Input ZVS Flyback Loop Measurement