In the field of mathematics, corresponding sides usually refers to the sides of two plane figures corresponding to one another. For example consider the two figures below: As we can see both the above figures are pentagons.
The flyback converter is used in both AC/DC and DC/DC conversion with galvanic isolation between the input and any outputs. The flyback converter is a buck-boost converter with the inductor split to form a transformer, so that the voltage ratios are multiplied with an additional advantage of isolation.herefore the operating principle of both converters is very close: 1  When the switch is closed (top of Fig. 2), the primary of the transformer is directly connected to the input voltage source. 2  When the switch is opened (bottom of Fig. 2), the primary current and magnetic flux drops.
The external features of a flyback transformer consist of a voltage divider where we called it as focus and screen. Inside the divider is actually a resistor networks control where the top control is always the focus adjustment and the bottom one is screen or G2.lder type of flyback transformer design have its high voltage diode built in outside and is called tripler. If any of the diodes spoilt you just have to replace the triple, But today, the flyback transformer came in one piece and all the high voltage diodes are molded inside the casing.