chapter  3
Isolated DC–DC Converters
Pages 36

Figure 3.1 shows an ideal flyback converter circuit, and Fig. 3.2 shows a flyback converter circuit with the transformer-equivalent circuit. This is an isolation-type buck-boost converter (Fig. 2.1). When the switch is closed, the energy is stored in the magnetizing inductor of the transformer; when the switch is open, the energy stored in the transformer is released to the output.