SYNCHRONOUS ZETA POL TOPOLOGY DC-DC CONVERTER MODELING FOR VOLTAGE REGULATION APPLICATIONS OF HIGH EFFICIENCY

Plínio Gonçalves Bueno Ferreira¹; Ricardo Quadros Machado¹

¹ Universidade de São Paulo - EESC - SEL

Baixar PDF doi:10.20906/CPS/CBA2018-0956

Resumo

This paper reports the Zeta DC-DC converter modeling considering the expressive losses in its components. The procedure is detailed and a voltage regulator for portable appliances is specified and the designed converter is analyzed. The modeling strategy allows the design to be closer to the specifications indicating the design feasibility regarding the converter gain and efficiency. The diode forward voltage versus the device power loss is deeply analyzed. The design issues are exposed in a way a synchronous Zeta in Point-of-Load converter was proposed to fulfill the application minimum requirements.

Palavras-chave: Zeta; Point-of-Load; DC-DC converter; Losses modeling; Efficiency analysis