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Abstract
AbstractDesign and implementation of a current controlled single stage single phase integrated AC/DC isolated Power Factor Correction (PFC) converter is presented in this paper. With the integrated topology reduces the number control switches. The proposed converter has the advantage of low bulk capacitor voltage and only single control switch hence reduce in complexity in control and cost. Sub-harmonic oscillations which are produced in conventional current controller. By adding an external compensating signal effect of oscillations are reduced and performance of the converter is improved. The proposed scheme is implemented in real time by TMS320F2812 digital signal processor (DSP) board. The performance of converter is verified both experimentally and by simulation at different load and line conditions. The proposed converter is designed for 90–230 V, 50 Hz AC input, 48 V DC output and operating at 100 kHz switching frequency. The Experimental results shows that the DSP-based fuzzy controlled single pha...
Highlights
IntroductionAt present many works have been developed in order to comply with IEC-61000-3-2 power supply to above groups is through power electronic converters
Based on the current harmonic limits by IEC-61000-3-2 and other European standards, electrical equipment are classified into four groups: Class-A, Class-B, Class-C and Class-D (Table 1).At present many works have been developed in order to comply with IEC-61000-3-2 power supply to above groups is through power electronic converters
This paper focuses on integrated buck flyback converter (IBFC) as a power factor corrected converter
Summary
At present many works have been developed in order to comply with IEC-61000-3-2 power supply to above groups is through power electronic converters. (1) Using passive elements like inductor, capacitor along with uncontrolled rectifiers. It is a good solution only for low power ratings and difficult to operate in universal range of input due to the large size of passive elements (Singh et al, 2003). (2) Other technique uses active power factor correction (PFC) circuit which consists of switching converter along with small size filter components. This technique reaches high efficiency and high power factor. Complexity and EMI generation, this topology is considered as the best solution for high power levels and operating in universal range of input
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