DocumentCode :
2263861
Title :
Single-stage AC/DC boost-forward converter with high power factor, regulated bus and output voltages
Author :
Lu, Dylan Dah-Chuan ; Lu, H.H.-C. ; Pjevalica, Velibor
Author_Institution :
Sch. of Electr., & Inf. Eng., Univ. of Sydney, Sydney, NSW, Australia
fYear :
2009
fDate :
24-27 May 2009
Firstpage :
2645
Lastpage :
2648
Abstract :
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 24V/100 W hardware prototype are given to confirm the theoretical analysis and performance of the proposed converter. The converter ranges 86%-92% of conversion efficiency at full load condition.
Keywords :
AC-DC power convertors; current-mode circuits; power factor correction; boost PFC converter; dual-loop peak current mode controller; efficiency 86 percent to 92 percent; high power factor; intermediate bus voltage output regulation; power 100 W; power factor correction; power switches; single power stage circuit; single-stage AC-DC boost-forward converter; two-switch-clamped forward converter; voltage 24 V; Analog-digital conversion; Circuits; DC-DC power converters; Hardware; Performance analysis; Power factor correction; Prototypes; Reactive power; Stress; Voltage control;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Circuits and Systems, 2009. ISCAS 2009. IEEE International Symposium on
Conference_Location :
Taipei
Print_ISBN :
978-1-4244-3827-3
Electronic_ISBN :
978-1-4244-3828-0
Type :
conf
DOI :
10.1109/ISCAS.2009.5118345
Filename :
5118345
Link To Document :
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