Fundamental frequency techniques are used to derive a set of equations for the series parallel resonant converter, including transformer leakage inductance, overlap effects and distortion of the parallel capacitor voltage. A more accurate approximation of the converter operation is provided than in previous analyses, and this also allows leakage inductance effects to be examined. The voltage conversion ratio for the converter is shown for several different operating points and leakage inductances. The results are discussed and verified with simulation results, and also experimentally with a 1 kW, 100 kHz prototype converter.
References
-
-
1)
-
R.L. Steigerwald
.
A comparison of half-bridge resonant converter topologies.
IEEE Trans. Power Electron.
,
2
-
2)
-
A.K.S. Bhat ,
V. Belaguli
.
Analysis and design of hybrid parallel-series resonant converter.
IEEE Trans. Circuits Syst.
,
8 ,
705 -
711
-
3)
-
Petkov, R., Chapman, D., James, D.: `A comparative study of two DC/DC converter topologies for telecommunications', Proceedings of INTELEC’96, 1996, p. 279–288.
-
4)
-
A.J. Forsyth ,
S.V. Mollov
.
Simple equivalent circuit for the series-loaded resonant converter with voltage boosting capacitor.
IEE Proc., Electr. Power Appl.
,
4 ,
301 -
306
-
5)
-
P.L. Dowell
.
Effects of eddy currents in transformer windings.
IEE Proc.
,
8 ,
1387 -
1394
http://iet.metastore.ingenta.com/content/journals/10.1049/ip-epa_20020584
Related content
content/journals/10.1049/ip-epa_20020584
pub_keyword,iet_inspecKeyword,pub_concept
6
6