TIDT365 November   2023

 

  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
  6. 2Testing and Results
    1. 2.1 Efficiency Graphs
    2. 2.2 Efficiency Data
    3. 2.3 POUT
    4. 2.4 Idle Power Loss
    5. 2.5 THD
    6. 2.6 Thermal Images
  7. 3Waveforms
    1. 3.1 Switching
    2. 3.2 Dead Time
    3. 3.3 Minimum Pulse on Time of LI
    4. 3.4 Output Waveform

2.1 Efficiency Graphs

Efficiency is shown in the following figures.

The test conditions for the results in Figure 2-1 through Figure 3-22 use a 4-Ω resistor, with heat sink, and no airflow.

GUID-20231029-SS0I-MRL3-MLMK-TVHQRG333BQD-low.jpg Figure 2-1 Efficiency Graph With 1-kHz Sine-Wave Frequency and 0.73 Amplitude Modulation Ratio
GUID-20231031-SS0I-DN3K-C013-K9MMGJWGMV8Q-low.jpg Figure 2-2 Efficiency Graph With 1-kHz Sine-Wave Frequency and 1.0 Amplitude Modulation Ratio
GUID-20231031-SS0I-B7SS-8XV2-JT3PLJMVHRDH-low.jpg Figure 2-3 Efficiency Graph With 1-MHz Switching Frequency and 0.73 Amplitude Modulation Ratio
GUID-20231031-SS0I-GS15-KHJL-DFV3ZZQNZF2P-low.jpg Figure 2-4 Efficiency Graph With 384-kHz Switching Frequency and 0.73 Amplitude Modulation Ratio
GUID-20231031-SS0I-7R9Q-ZLVC-6KDV4MWMS69P-low.jpg Figure 2-5 Efficiency Graph With 2-MHz Switching Frequency and 0.73 Amplitude Modulation Ratio