SEPIC converter with wide bandgap semiconductor for PV battery charger

Maharjan, Manisha; Tandukar, Prajina; Bajracharya, Abhilasha; Tamrakar, Ujjwol; Shrestha, Dipesh; Reis, Fernando B. dos; Tonkoski, Reinaldo

doi:10.1109/cobep.2017.8257335

Cited by 6 publications

(4 citation statements)

References 13 publications

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“…Nowadays the Switch-Mode Power Converters (SMPS) getting more and more attention, which are characterized by the high efficiency (and low losses), high power density, the wide input and output range, finally the small size and light weight [1], [2]. The operation mode of these converters is based on Pulse Width Modulation (PWM), resulting an easy way to control the output voltage.…”

Section: Introductionmentioning

confidence: 99%

Design of LQR controller for GaN based Buck converter

Csizmadia

Kuczmann

2020

Pollack Periodica

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Abstract:This paper presents a design procedure of a switched-mode power converter, the well-known synchronous buck converter: the calculating method, and how to choose the parts of the converter are presented in detail, like the inductor, the capacitor and the semiconductors as well as the design of the state feedback. During the design process the efficiency and the high switching frequency are very important: the switching semiconductors are Gallium Nitride based. Then, a linear-quadratic regulator is designed and applied to the particular case of a buck converter.

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Section: Introductionmentioning

confidence: 99%

Design of LQR controller for GaN based Buck converter

Csizmadia

Kuczmann

2020

Pollack Periodica

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“…In order to improve power density of high switching frequency SEPIC converter using GaN switch with PCB embedded inductor is presented in Dou et al (2018). Maharjan et al (2017) carries out the application of SEPIC converter using separately inductors with SiC and Si power switches for battery charging purpose. Application of coupled inductor-based boost led drive using GaN switch with 500 kHz switching frequency with 120V output voltage is done in Gao et al (2019).…”

Section: Introductionmentioning

confidence: 99%

“…Most of the studies defined in references realized the usage of the GaN switch with higher frequency such as 500kHz-2Mhz as in Saif et al (2017), Xu et al (2017), Gao et al (2019) and more than 12V output voltage with relatively higher power than 10W as in Gao et al (2020), Saif et al (2017), Alharbi et al (2018), Maharjan et al (2017), Gao et al (2019). However, in this paper, SEPIC converter based led driver application for up to 10W power with up to 12V output voltage is realized by using Si MOSFET and E-Mode GaN-HEMT based power switches.…”

Section: Introductionmentioning

confidence: 99%

Si ve GaN Yarı İletken tabanlı SEPIC DC-DC Led Sürücülerin Karşılaştırılması

Şehirli¹

2020

European Journal of Science and Technology

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Recently, in power electronics, studies on creating new semiconductor concept is so popular. As a result of this studies, using of wide band gap semiconductors (WBG) such as Silicon Carbide (SiC) Mosfets and Gallium Nitride High Electron Mobility Transistors (GaN-HEMT) has gained much attention due to the its high switching frequncy capability and providing high power density feature. Furthermore, in the field of illumination, power leds is so eye cathing because of their high efficinecy feature with respect to other kind of illumination such as metal halide and incandesant bulbs. In addition, to operate power leds, DC power is required and the most efficient way to provide required DC power is to use one of the DC-DC converter topologies. Buck-boost derived converter topology is the best solution fort that purpose. One of the flashiest topologies is single ended primary inductor (SEPIC) converter. Therefore, in this paper, comparison of SEPIC DC-DC converter-based power led driver using silicon (Si) and enhancement mode (E-mode) GaN-HEMT based power switch is made. Also, SEPIC led drivers are designed for 10W power led and implementations for both power switches are realized. In addition, switching frequency of converters is chosen as 100kHz and dsPIC30F4011 micro controller is used to produce PWM signal for power switches and to limit maximum current of power leds by using ACS712 current sensor. By means of the applications, power led current, power led voltage, input current, input voltage and input side inductor current, switch voltage, gate resistor voltage are measured and compared for both Si and GaN based power switches. As a result of comparisons, altough similar results are obtained, circuit using Si MOSFET has slightly higher efficiency than E-Mode GaN-HEMT used circuit. Besides, circuit using E-Mode GaN-HEMT is more sensitivity to the noises and needs extra care for its soldering.

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“…Therefore, an increase in magnetic components will have a negative effect on weight, cost, and volume of the charger. In [19, 20], the authors have proposed SEPIC‐based chargers for electric vehicle (EV) battery charging using a single‐stage approach but they do not operate in other modes of vehicle. The authors in [21] have proposed a charger using four switches and two inductors which operates only in charging mode and does not operate in other modes of vehicle.…”

Section: Introductionmentioning

confidence: 99%

Integrated converter for plug‐in electric vehicles with reduced sensor requirement

Singh

Pathak

2019

IET Electrical Systems in Transportation

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This study presents a newly integrated converter for plug-in electric vehicles. The proposed structure achieves various modes of vehicle operation (plug-in charging or power factor correction (PFC), propulsion and regenerative braking). Moreover, a non-linear carrier control method is used for PFC operation which saves the voltage sensor requirement for continuous conduction mode of operation. Reduction of feedback circuitry enhances the compactness of the converter, making it more suitable for on-board charger. Stress and loss analyses and selection of passive components of the converter have been investigated for each mode. Simulation and experimental results show the validity of the proposed converter.

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SEPIC converter with wide bandgap semiconductor for PV battery charger

Cited by 6 publications

References 13 publications

Design of LQR controller for GaN based Buck converter

Design of LQR controller for GaN based Buck converter

Si ve GaN Yarı İletken tabanlı SEPIC DC-DC Led Sürücülerin Karşılaştırılması

Integrated converter for plug‐in electric vehicles with reduced sensor requirement

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