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Controller Design of Buck-Boost Converter with Constant Voltage Output
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 Title & Authors
Controller Design of Buck-Boost Converter with Constant Voltage Output
Lee, Woo-Cheol;
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 Abstract
The Buck-Boost converter consisted of two switches is more expensive than the conventional Buck converter, because of the increase of the components. However, it can control the DC voltage depending on the requested load voltage without additional circuits, because it can control the voltage under the relatively wide range of the load. Additionally, it can control the output voltage constantly under the variation of the input voltage. In the paper two control loops consisted of current and voltage control are designed. When two controllers are operated at the same time the problem of the output voltage is occurred. Therefore, the solution of the output voltage problem is proposed. Finally, the validity of the proposed scheme is investigated with simulated and experimental results for a prototype system rated at 1kVA.
 Keywords
Buck-Boost Converter;Voltage/Current Control Loop;Transfer Algorithm;Transient State;
 Language
Korean
 Cited by
 References
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