AC/DC critical conduction mode buck-boost converter with unity power factor

Resumen

The buck-boost converter operating in critical conduction mode (CRM) is commonly utilized in various applications because of many advantages like protection against
short circuit, minimum component count, low operating duct-cycle, and low voltage on MOSFETs. However, its input power factor (PF) is not high while operating in constant ontime
control. To attain unity PF for universal input voltage range, a new control scheme of variable on-time control (VOTC) is proposed in this paper. The VOTC can be implemented
by modulating the turn-on time of the buck-boost switch. The working principle and performance comparison of the converter is discussed with both types of control scheme.
The input PF the converter is high in case of VOTC than the COTC. Simulation results are presented to verify the effectiveness of the proposed control strategy).

Biografía del autor

Abdul Hakeem Memon

IICT, Mehran UET, Jamshoro, Sindh, (Pakistan).

Fazul Muhammad Noonari

IICT, Mehran UET, Jamshoro, Sindh, (Pakistan).

Zubair Memon

IICT, Mehran UET, Jamshoro, Sindh, (Pakistan).

Ahmar Farooque

IICT, Mehran UET, Jamshoro, Sindh, (Pakistan).

Mohammad Aslam Uqaili

IICT, Mehran UET, Jamshoro, Sindh, (Pakistan).

Publicado
2020-04-30
Cómo citar
Memon, A., Noonari, F., Memon, Z., Farooque, A., & Uqaili, M. (2020). AC/DC critical conduction mode buck-boost converter with unity power factor. 3C Tecnología. Glosas De Innovación Aplicadas a La Pyme, 93-105. Recuperado a partir de http://ojs.3ciencias.com/index.php/3c-tecnologia/article/view/995