Self-commutated converter

A method in which a switching converter does not have an independent oscillation circuit such as an oscillator; instead, oscillation is generated by utilizing the on/off switching of primary-side transistors and distributed capacitance, and the frequency is transmitted to the secondary side through a transformer. Compared to externally excited converters, it has the advantage of a simpler circuit with fewer components, but the disadvantage of limited flexibility in oscillation frequency. Non-resonant converters include insulated ringing choke type converters. Resonant converters include partial resonant converters. Compared to externally excited converters, there are fewer types available.