AN2626

List of figures

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List of figures

Figure 1.

Phase-shifted ZVS full bridge circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Figure 2.

Switching sequence in a P-S ZVS FB converter DC/DC . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Figure 3.

Typical waveforms in a P-S ZVS FB converter DC/DC . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Figure 4.

Current flow into the parallel body diode-channel MOSFET . . . . . . . . . . . . . . . . . . . . . . . . 7

Figure 5.

Current flow into the parallel body diode-channel MOSFET. . . . . . . . . . . . . . . . . . . . . . . . . 8

Figure 6.

Current flow into the channel MOSFET (first quadrant) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Figure 7.

Current flow due to the reverse recovery of the body diode . . . . . . . . . . . . . . . . . . . . . . . . 9

Figure 8.

Comparison between standard and fast diode technology . . . . . . . . . . . . . . . . . . . . . . . . . 10

Figure 9.

A typical leading leg MOSFET waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Figure 10.

A typical lagging leg MOSFET waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11