Title :
Analytic solutions for LLCC parallel resonant converter unify the design and analysis of two- and three-element converters
Author :
Cheng, Jung-Hui ; Witulski, Arthur F.
Author_Institution :
Dept. of Electr. & Comput. Eng., Arizona Univ., Tucson, AZ, USA
Abstract :
A practical method for the steady-state design of parallel resonant DC/DC power converters is presented. The method uses a set of pre-derived equations from an LLCC-type series-parallel resonant converter (LLCC-SPRC). Although four tank elements are used in an LLCC-SPRC, only two ratios of these tank elements are needed during design. The values of the four tank elements can be found from the design results. In addition to designing an LLCC-SPRC, the prederived equations can also be used to design and analyze conventional LCC-type series-parallel (LCC-SPRC), LLC-type parallel (LLC-PRC), and LC-type parallel (LC-PRC) resonant power converters. In other words, four power converters can be designed by the same equations. A design procedure along with design examples is given. Experimental circuits are implemented and measured based on the design results to verify the validity of the derived equations and the design procedure
Keywords :
DC-DC power convertors; PWM power convertors; field effect transistor switches; power MOSFET; power field effect transistors; power semiconductor switches; resonant power convertors; switching circuits; LLCC parallel resonant power converter; design examples; design procedure; parallel resonant DC/DC power converters; pre-derived equations; steady-state design; tank elements; Capacitance; Design methodology; Difference equations; Frequency conversion; Inductance; Magnetic resonance; Resonant frequency; Steady-state; Stress; Topology;
Conference_Titel :
Power Electronics Specialists Conference, 1996. PESC '96 Record., 27th Annual IEEE
Conference_Location :
Baveno
Print_ISBN :
0-7803-3500-7
DOI :
10.1109/PESC.1996.548591
