document: Performance , design and control of a series-parallel -LRB- CL/sup 2 / - type -RRB- resonant DC/DC converter The three-element resonant network has various topological alternatives , one of which , a prospective compound topology , is investigated in detail . The converter uses one capacitor -LRB- C -RRB- and two inductors -LRB- L/sup 2 / -RRB- , to form a compound type CL/sup 2 / network . Various advantages and limitations of the converter are detailed , and a new design procedure for such converters is also introduced . The converter may be controlled by varying the switching frequency or by pulse-width modulation . An experimental prototype has been produced and an excellent performance in the lagging power-factor mode has been confirmed
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