The Control Strategy of IPOP DC-DC Buck Converter

摘要: In a single DC-DC converter, the conversion power was faced with problems of large input and output current, great loss serious EMI. So method series connection multiple converter modules often used, which could reduce stress device, improve reliability meet requirements different power. this paper, we explored control strategies IPOP three-level Buck converter. Combing systematic models constructed Lyapunov energy function relevant state variable, introduced new formula inductance current for reference, built feedback loop reached approximate steady-error balance multi-output by matching variable parameter. addition, system performance analyzed through small signal model space method. Finally, it proved effective simulation experiments.