self-excited converter

In the switching converter, there is no independent oscillation circuit such as an oscillator, and oscillation is generated using the off/on of the primary-side transistor and the distributed capacitance, transmitting the frequency to the secondary side via a transformer. Compared to the separately excited converter, it has the advantage of fewer circuit components and thus simplification, but it also has the disadvantage of lower flexibility in the oscillation frequency. In non-resonant converters, there is the isolated ringing choke converter. In resonant converters, there is the partial resonant converter. Compared to separately excited converters, there are fewer types.