A Family of Hybrid Step-up DC-DC Converters based on Switched-capacitor Converters

Li, Shouxiang; Li, Zhenning; Shang, Wei; Zheng, Shuzhan; Jia, Pengyu

doi:10.1109/ipemc-ecceasia48364.2020.9367698

Cited by 10 publications

(5 citation statements)

References 8 publications

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“…An inductor can be utilised in this topology by replacing one active switch in the five standards SC to achieve higher step-up gain and broad voltage regulations [81]. In order to increase the voltage conversion ratio of step-up DC/DC converter, non-isolated high step-up soft-switching DC/DC converter by using interleaving and Dickson SC techniques have been presented [82].…”

Section: Switched Capacitor (Sc)mentioning

confidence: 99%

Voltage Lifting Techniques for Non-Isolated DC/DC Converters

2023

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This paper presents a comprehensive review that highlights the characteristics of non-isolated step-up converters based on high boost voltage lifting techniques. The paper categorises the high boost techniques: multistage/multilevel, switched capacitor, voltage multiplier, voltage lift, switched inductor and magnetic coupling. The paper also discusses in detail the advantages and disadvantages for each category such as cost, complexity, power density, reliability and efficiency. The number of passive and active components, voltage gain, voltage stress, switching frequency, efficiency and power rating are also compared. Although the paper considers coupling inductors in the context of the non-isolated converter, the focus of the entire article is on the non-isolated high voltage step-up techniques. The key contribution in this paper is the review of high boosting techniques rather than the DC /DC converters. This allows divergence of new ideas and new power converters that will help provide highly efficient and flexible power converters for several applications where the sending end voltage is very low as photovoltaic systems. In addition, many applications and control techniques of DC/DC converters are summarised in this paper.

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Section: Switched Capacitor (Sc)mentioning

confidence: 99%

Voltage Lifting Techniques for Non-Isolated DC/DC Converters

2023

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“…So far, several high step-up DC-DC converters are introduced [3][4]. It divided into three categories such as the inductive base [5][6][7][8][9], capacitive base [10][11][12][13][14], and hybrid base [15][16][17][18][19][20][21][22][23][24][25][26][27][28][29]. In the inductive converters, the coupled inductor type is proposed [5][6][7][8][9].…”

Section: Introductionmentioning

confidence: 99%

“…It has ability to vary the CR by D. Recently S. Liu, et. al categorized the modification of switched capacitor which replacement an inductor instead of a switch [23]. This paper covered all families which include ladder, series-parallel, voltage double, and Fibonacci.…”

Section: Introductionmentioning

confidence: 99%

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Cascaded hybrid fibonacci DC-DC converter with interleaved clock for DC grid

Sai,

Liu,

Sugimoto

2024

IEICE Electron. Express

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A Cascaded hybrid Fibonacci DC-DC converter with interleaved clock for DC grid is proposed. A hybrid Fibonacci stage is connected in series and the interleaved clock is applied. The modified converter is proposed by using two inductors in place of two switches of a typical X3 Fibonacci converter. By this modification, the converter achieved up to 20 of conversion rate (CR) at duty ratio of D = 0.84. The converter consists of two switches, three diodes, and three capacitors for a total of 10 elements. This component count is less than that of the past leading works of the high step-up DC-DC converters. The operation principle was verified using PSIM simulator. A laboratory prototype DC-DC converter achieved CR of 19.5 at D = 0.85.

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“…The HV step-up circuits, developed based on voltage multipliers that are suitable for interfacing LV renewable energy sources to HV distribution buses [12] and Marx generators [13], have been further described by this technique. Moreover, the SC converters with DC input voltage for LV applications have been suggested for the step-up uses in [14][15][16][17][18][19][20].…”

Section: Introductionmentioning

confidence: 99%

A new high step‐up DC power supply with modular switched capacitor cells

Kord

Rezanejad

Shiekholeslami

2022

IET Power Electronics

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In this paper, a novel high step-up direct current (DC)-DC converter, using switchedcapacitor (SC) cells, is proposed. Upon turning a set of switches in this converter on/off, the capacitors are connected to each other in a circuit configuration, and charged through the source. Then, the capacitors are reconnected in a different configuration by turning the switches off/on, and generate high output voltage. This modular converter is able to produce flexible, high output voltage from low input voltage sources. The proposed converter is accordingly studied and analysed. To verify the operation of the given converter, it is simulated via the MATLAB-based Simulink software, and an experimental prototype is subsequently implemented on a laboratory scale.

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A Family of Hybrid Step-up DC-DC Converters based on Switched-capacitor Converters

Cited by 10 publications

References 8 publications

Voltage Lifting Techniques for Non-Isolated DC/DC Converters

Voltage Lifting Techniques for Non-Isolated DC/DC Converters

Cascaded hybrid fibonacci DC-DC converter with interleaved clock for DC grid

A new high step‐up DC power supply with modular switched capacitor cells

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