DocID025567 Rev 1

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AN4406

Testing and comparing

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4.3.3

Results

From the electrical results, the performance of the devices under test are conditioned by the

current level. In the resonant topology, at low load, the impact of the output capacitances of

the MOSFET's determine the energy losses dissipated inside the devices. Their variation

Figure 21. Efficiency data vs load level in 400 W

evaluation board

Figure 22.

η (%) efficiency at V

specific load %