Proceedings ArticleDOI
Four Switch Buck-Boost Converter for Telecom DC-DC power supply applications
Xiaoyong Ren,Zhao Tang,Xinbo Ruan,Jian Wei,Guichao Hua +4 more
- pp 1527-1530
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TLDR
A controlling scheme for the four switch buck-boost converter is proposed to achieve high efficiency within the line range and the highest efficiency around the nominal input.Abstract:
Converters for telecom DC/DC power supply applications often require an output voltage somewhere within a wide range of input voltages. While the design of traditional converters will come with a heavy penalty in terms of component stresses and losses, and with the restrictions on the output voltage. Besides that, the high efficiency around the nominal input is another restriction for traditional converters. A controlling scheme for the four switch buck-boost converter is proposed to achieve high efficiency within the line range and the highest efficiency around the nominal input. A 48 V(36-75 V) input 12 V@25 A output two-stage prototype composed of the proposed converter and a full bridge converter is built in the lab. The experimental results verified the analysis.read more
Citations
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Journal ArticleDOI
A Compensation Technique for Smooth Transitions in a Noninverting Buck–Boost Converter
TL;DR: In this paper, the effect of the discontinuity due to the effective duty cycle derived from the device switching time at the mode change is analyzed, and a technique to compensate the output voltage transient due to this discontinuity is proposed.
Journal ArticleDOI
Digital Combination of Buck and Boost Converters to Control a Positive Buck–Boost Converter and Improve the Output Transients
TL;DR: In this paper, a highly efficient and novel control strategy for improving the transients in the output voltage of a DC-DC positive buck-boost converter, required for low-power portable electronic applications, is presented.
Journal ArticleDOI
Analysis and implementation of a new single-switch buck–boost DC/DC converter
TL;DR: A novel buck-boost DC/DC converter that expands the continuous conduction mode (CCM) operational region and reduces the voltage stresses across the capacitors so that the current stresses on diodes are reduced.
Journal ArticleDOI
Backstepping Control of Smart Grid-Connected Distributed Photovoltaic Power Supplies for Telecom Equipment
TL;DR: In this article, backstepping controllers for distributed hybrid photovoltaic (PV) power supplies of telecommunication equipment were obtained for distributed energy resource operated within the self-consumption concept.
Journal ArticleDOI
Design, analysis and implementation of a buck–boost DC/DC converter
TL;DR: A novel buck–boost converter is presented in this study that inherits all the advantages of Cuk converter such as low output voltage ripple and minimal radio frequency interference and some implementation problems of KY converters are solved.
References
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Book
Fundamentals of Power Electronics
TL;DR: Converters in Equilibrium, Steady-State Equivalent Circuit Modeling, Losses, and Efficiency, and Power and Harmonics in Nonsinusoidal Systems.
Proceedings ArticleDOI
Buck-boost PWM converters having two independently controlled switches
TL;DR: Two-switch buck-boost converters are evaluated and compared in terms of component stresses in universal-input power-factor-corrector applications, and one new two-switch converter is identified that hasLow inductor conduction losses, low inductor volt-seconds, and about the same switch Conduction losses and voltage stresses as the boost converter.
Journal ArticleDOI
Analysis and design of a low-stress buck-boost converter in universal-input PFC applications
TL;DR: In this paper, a two-switch topology, boost-interleaved buck-boost (BoIBB) converter, was proposed for universal-input PFC applications.
Journal ArticleDOI
Two-stage approach for 12-V VR
TL;DR: In this article, the authors proposed a two-stage approach for the 12-V voltage regulator, which can realize high frequency, thus reducing the output capacitance and therefore decreasing the cost.
Journal ArticleDOI
Zero-voltage and zero-current-switching PWM hybrid full-bridge three-level converter
Xinbo Ruan,Bin Li +1 more
TL;DR: A zero-voltage and zero-current-switching pulsewidth modulation hybrid full-bridge three-level (ZVZCS PWM H-FB TL) converter, which has a TL leg and a two-level leg that can realize ZVS and MOSFETs, is proposed.
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