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Using a Current Controlled Light-Dependent Resistor to Bridge the Control of DC/DC Power Converter

This paper presents the design of a microcontroller controlled buck-boost DC-to-DC power converter system. The system contains two major subsystems, a Zeta type buck-boost power converter and a control unit and it contains two control loops. The inner-loop is a voltage regulator based on a Zeta type...

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Bibliographic Details
Published in:Electronics (Basel) 2018-12, Vol.7 (12), p.447
Main Authors: Shiau, Jaw-Kuen, Chiu, Hsien-Yu, Sun, Jin-Wei
Format: Article
Language:English
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Summary:This paper presents the design of a microcontroller controlled buck-boost DC-to-DC power converter system. The system contains two major subsystems, a Zeta type buck-boost power converter and a control unit and it contains two control loops. The inner-loop is a voltage regulator based on a Zeta type buck-boost converter. The outer-loop is for voltage and current regulation. The voltage/current regulation is achieved by controlling a light dependent resistor from the control unit. Computer simulations based on a MATLAB/SIMULINK model were successfully conducted to verify the design. In addition, a prototype system was built and successfully tested for a Li-ion battery charging application.
ISSN:2079-9292
2079-9292
DOI:10.3390/electronics7120447