Wild Load Range Operation for Bidirectional Non-Inverting Buck Boost Converter

Author(s):  
Jun-Yao Luo ◽  
Fu-Zen Chen
Keyword(s):  
2014 ◽  
Vol 3 (3) ◽  
pp. 101-121 ◽  
Author(s):  
S. Aiswariya ◽  
R. Dhanasekaran

This paper proposes an AC-DC converter with the application of active type soft switching techniques. Boost converter with active snubber is used to achieve power factor correction. Boost converter main switch uses Zero Voltage Transition switching for turn on and Zero Current Transition switching for turn off. The active snubber auxillary switch uses Zero Current Switching for both turn on and turn off. Since all the switches of the proposed circuit are soft switched, overall component stress has been greatly reduced and the output DC voltage is expected to have low ripples. A small amount of auxillary switch current is made to flow to the output side by the help of coupling inductor. The proposed circuit is simulated using MATLAB Simulink. All the related waveforms are shown for the reference. The power factor is measured as 0.99 showing that the input current and input voltage is in phase with each other. The PFC circuit has very less number of components with smaller size and can be controlled easily at a wide line and load range.


2011 ◽  
Vol 42 (10) ◽  
pp. 1151-1163 ◽  
Author(s):  
Jia-Na Lou ◽  
Xiao-Bo Wu ◽  
Meng-Lian Zhao ◽  
Xiao-Lang Yan

VLSI Design ◽  
2013 ◽  
Vol 2013 ◽  
pp. 1-7
Author(s):  
Hou-Ming Chen ◽  
Robert C. Chang ◽  
Kuang-Hao Lin

This paper presents a high-efficiency monolithic dc-dc PFM boost converter designed with a standard TSMC 3.3/5V 0.35 μm CMOS technology. The proposed boost converter combines the parallel power MOS technique with pulse-frequency modulation (PFM) technique to achieve high efficiency over a wide load current range, extending battery life and reducing the cost for the portable systems. The proposed parallel power MOS controller and load current detector exactly determine the size of power MOS to increase power conversion efficiency in different loads. Postlayout simulation results of the designed circuit show that the power conversion is 74.9–90.7% efficiency over a load range from 1 mA to 420 mA with 1.5 V supply. Moreover, the proposed boost converter has a smaller area and lower cost than those of the existing boost converter circuits.


2020 ◽  
Vol 67 (12) ◽  
pp. 10520-10530
Author(s):  
Kyoungjin Lee ◽  
Haneul Kim ◽  
Jehyung Yoon ◽  
Hyoung-Seok Oh ◽  
Jin-Hong Park ◽  
...  

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