| Title |
Observation of the Variation of Frequency-Output Characteristic of Step-Down LCC Resonant Converter Caused by Parasitic Inductance |
| Authors |
Woo-Cheol Jeong ; Su-Mi Park ; Hong-Je Ryoo |
| DOI |
http://doi.org/10.5207/JIEIE.2021.35.2.016 |
| Keywords |
Additional resonance; Frequency-output characteristics; LCC resonant converter; Parasitic inductance |
| Abstract |
In the practical LCC resonant converter, the parasitic inductance between the parallel resonant capacitor and the output stage on the secondary side of the transformer is one of various parasitic components. The parasitic inductance induces relatively substantial influences in the step-down LCC resonant converter for which the rated output voltage is lower than the input voltage, and this cause additional resonance. In addition, when the parasitic is not affected, the switching frequency and output have a constant inverse relationship when switching frequency is above the resonant frequency, but the influence of the parasitic inductance cause a variation in the frequency-output characteristic. This paper describes the observations on the variations of major waveform and frequency-output characteristic with or without parasitic inductance using PSPICE simulation of the LCC resonant converter whose input voltage is 44V and rated output voltage is 17V. |