A noninverting buck-boost converter with reduced components using a microcontroller

Weissbach, Robert; Torres, Kevin

doi:10.1109/secon.2001.923091

Cited by 19 publications

(8 citation statements)

References 2 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…When supply voltage is higher than the desired load voltage, the converter is set to buck operation. In buck mode operation, transistor 4 Q is always on and 3…”

Section: Synchronous Buck-boost Convertermentioning

confidence: 99%

“…In Figure 9(b), transistor 4 Q is closed and transistor 3 Q is open to engage inductor discharge mode. Similar to buck operation, the dynamic model for boost operation is expressed using the following equation: When supply voltage is close to the desired load voltage, the converter is set to buck-boost operation.…”

Section: Q Is Closed Andmentioning

confidence: 99%

“…To maximize utilization of available solar power drawn from the solar panel, this study incorporates a buck-boost converter into the solar powered battery management system for battery charging. Many studies have investigated the analysis and design of buck-boost power converters [4][5][6][7]. In [5,6] the authors developed buck-boost converters for portable applications.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Li-Ion Battery Charging with a Buck-Boost Power Converter for a Solar Powered Battery Management System

Shiau

2013

Energies

View full text Add to dashboard Cite

This paper analyzes and simulates the Li-ion battery charging process for a solar powered battery management system. The battery is charged using a non-inverting synchronous buck-boost DC/DC power converter. The system operates in buck, buck-boost, or boost mode, according to the supply voltage conditions from the solar panels. Rapid changes in atmospheric conditions or sunlight incident angle cause supply voltage variations. This study develops an electrochemical-based equivalent circuit model for a Li-ion battery. A dynamic model for the battery charging process is then constructed based on the Li-ion battery electrochemical model and the buck-boost power converter dynamic model. The battery charging process forms a system with multiple interconnections. Characteristics, including battery charging system stability margins for each individual operating mode, are analyzed and discussed. Because of supply voltage variation, the system can switch between buck, buck-boost, and boost modes. The system is modeled as a Markov jump system to evaluate the mean square stability of the system. The MATLAB based Simulink piecewise linear electric circuit simulation tool is used to verify the battery charging model.

show abstract

“…When supply voltage is higher than the desired load voltage, the converter is set to buck operation. In buck mode operation, transistor 4 Q is always on and 3…”

Section: Synchronous Buck-boost Convertermentioning

confidence: 99%

Section: Q Is Closed Andmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Li-Ion Battery Charging with a Buck-Boost Power Converter for a Solar Powered Battery Management System

Shiau

2013

Energies

View full text Add to dashboard Cite

show abstract

“…To maximize the use of available solar power drawn from the solar panel and to widen the applications of solar energy, several studies have investigated the design and applications of buck-boost converters [3][4][5][6][7]. Few studies have developed buck-boost converters for portable applications [4,5], whereas the study in [6] proposed a buck-boost-cascaded converter for high-power applications such as fuel-cell electric vehicles.…”

Section: Introductionmentioning

confidence: 99%

Circuit Simulation for Solar Power Maximum Power Point Tracking with Different Buck-Boost Converter Topologies

et al. 2014

View full text Add to dashboard Cite

Abstract:The power converter is one of the essential elements for effective use of renewable power sources. This paper focuses on the development of a circuit simulation model for maximum power point tracking (MPPT) evaluation of solar power that involves using different buck-boost power converter topologies; including SEPIC, Zeta, and four-switch type buck-boost DC/DC converters. The circuit simulation model mainly includes three subsystems: a PV model; a buck-boost converter-based MPPT system; and a fuzzy logic MPPT controller. Dynamic analyses of the current-fed buck-boost converter systems are conducted and results are presented in the paper. The maximum power point tracking function is achieved through appropriate control of the power switches of the power converter. A fuzzy logic controller is developed to perform the MPPT function for obtaining maximum power from the PV panel. The MATLAB-based Simulink piecewise linear electric circuit simulation tool is used to verify the complete circuit simulation model.

show abstract

“…One of the key difficulties in control of non-inverting buck-boost topology is the smooth transition from buck to boost operation or boost to buck operation. The easiest way to mitigate this problem is to compare the magnitudes of input and output voltages [10,11]. In this way, the voltage drops in the components, which vary with load current, must be taken into consideration.…”

Section: Introductionmentioning

confidence: 99%

A Compensation Technique for Smooth Transitions in Non-inverting Buck-Boost Converter

Lee

Khaligh

Emadi

2009

2009 Twenty-Fourth Annual IEEE Applied Power Electronics Conference and Exposition

View full text Add to dashboard Cite

With the advent of battery-powered portable devices and the mandatory adoptions of power factor correction (PFC), non-inverting buck-boost converter is attracting numerous attentions. Conventional two-switch or four-switch non-inverting buck-boost converters choose their operation modes by measuring input and output voltage magnitudes. This can cause higher output voltage transients when input and output are close to each other. For the mode selection, the comparison of input and output voltage magnitudes is not enough due to the voltage drops raised by the parasitic components. In addition, the difference in the minimum and maximum effective duty cycle between controller output and switching device yields the discontinuity at the instant of mode change. Moreover, the different properties of output voltage versus a given duty cycle of buck and boost operating modes contribute to the output voltage transients. In this paper, the effect of the discontinuity due to the effective duty cycle derived from device switching time at the mode change is analyzed. A technique to compensate the output voltage transient due to this discontinuity is proposed. In order to attain additional mitigation of output transients and linear input/output voltage characteristic in buck and boost modes, the linearization of DC-gain of large signal model in boost operation is analyzed as well. Analytical, simulation, and experimental results are presented to validate the proposed theory.

show abstract

A noninverting buck-boost converter with reduced components using a microcontroller

Cited by 19 publications

References 2 publications

Li-Ion Battery Charging with a Buck-Boost Power Converter for a Solar Powered Battery Management System

Li-Ion Battery Charging with a Buck-Boost Power Converter for a Solar Powered Battery Management System

Circuit Simulation for Solar Power Maximum Power Point Tracking with Different Buck-Boost Converter Topologies

A Compensation Technique for Smooth Transitions in Non-inverting Buck-Boost Converter

Contact Info

Product

Resources

About