Single-Stage AC/DC Boost-Forward Converter With High Power Factor and Regulated Bus and Output Voltages

Unlike existing single-stage AC/DC converters with uncontrolled intermediate bus voltage, a new single-stage AC/DC converter achieving power factor correction (PFC), intermediate bus voltage output regulation, and output voltage regulation is proposed. The single-power-stage circuit is formed by int...

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Published in:IEEE transactions on industrial electronics (1982) 2009-06, Vol.56 (6), p.2128-2132
Main Authors: Lu, D.D.-C., Iu, H.H.-C., Pjevalica, V.
Format: Article
Language:English
Subjects:
AC/DC converter
Analog-digital conversion
Circuits
DC-DC power converters
Hardware
Performance analysis
Power factor correction
power factor correction (PFC)
Prototypes
Reactive power
single-stage
Stress
Voltage control
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cited_by cdi_FETCH-LOGICAL-c290t-6bc514257863ed3071616cc1757357c7a980ecbb15e4827aeea0d8633707f0ce3
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container_title IEEE transactions on industrial electronics (1982)
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creator Lu, D.D.-C.
Iu, H.H.-C.
Pjevalica, V.
description Unlike existing single-stage AC/DC converters with uncontrolled intermediate bus voltage, a new single-stage AC/DC converter achieving power factor correction (PFC), intermediate bus voltage output regulation, and output voltage regulation is proposed. The single-power-stage circuit is formed by integrating a boost PFC converter with a two-switch-clamped forward converter. The current stress of the main power switches is reduced due to separated conduction period of the two source currents flowing through the power switch. A dual-loop peak-current-mode controller is proposed to achieve PFC and ensure independent bus voltage and output voltage regulations. Experimental results on a 24-V/100-W hardware prototype are given to confirm the theoretical analysis and performance of the proposed converter. The converter has conversion efficiency ranging from 86% to 92% at full-load condition.
doi_str_mv 10.1109/TIE.2009.2014304
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subjects AC/DC converter
Analog-digital conversion
Circuits
DC-DC power converters
Hardware
Performance analysis
Power factor correction
power factor correction (PFC)
Prototypes
Reactive power
single-stage
Stress
Voltage control
title Single-Stage AC/DC Boost-Forward Converter With High Power Factor and Regulated Bus and Output Voltages
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