Practical design considerations of a multi-output CUK converter

摘要

An experimental high frequency three output dc-dc converter design is presented in circuit detail, emphasizing the practical design needs of its contemporaty optimum topology ('CUK) output stages. Power component selection criteria are also given along with suitable load protection methods against output voltage reversals at turn-on. Inductor coupling criteria for ripple current reductions at input/output ports are develop including an alternate method for external tuning inductance insertion. Results of corresponding empirical evaluations of a 200KHz, 55-W representative design are discussed.