A new approach to low ripple-noise switching converters on the basis of switched-capacitor converters

Umeno, Takatoshi; Takahashi, Koki; Ueno, Fumio; Inoue, Takahiro; Oota, Ichirou

doi:10.1109/iscas.1991.176552

Cited by 52 publications

(22 citation statements)

References 3 publications

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“…So, the switching frequency can be increased to reduce the converter size and volume. Moreover, resonant SCCs have solved the problem of necessary bulking inductances in hybrid SCCs, and also have reduced the spike currents during charging and discharging the capacitors [3]. The capacitor' s currents of the resonant and common SCC converters have been compared in Fig.…”

Section: Resonant Switched Capacitor Convertersmentioning

confidence: 99%

“…7. Comparing the capacitors currents of the resonant and common SCC converters [3] 265 Nowadays, some useful resonant switched capacitor converters have been introduced and implemented successfully which all switches have soft switching under all operation conditions. In addition, two switches have been used for variable output voltage ratios.…”

Section: Resonant Switched Capacitor Convertersmentioning

confidence: 99%

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Designing A 48 V to 24 V DC-DC converter for vehicle application using a resonant switched capacitor converter topology

Mousavi

Beiranvand

Goodarzi

et al. 2015

The 6th Power Electronics, Drive Systems &Amp; Technologies Conference (PEDSTC2015)

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Electromagnetic elements such as inductance are not used in switched-capacitor converters to convert electrical power. In contrast, capacitors are used for storing and transforming the electrical power in these new topologies. Lower volume, higher power density, and more integration ability are the most important features of these kinds of converters. In this paper, the most important switched-capacitor converters topologies, which have been developed in the last decade as new topologies in power electronics, are introduced, analyzed, and compared with each other, in brief. Finally, a 100 watt double phase half-mode resonant converter is simulated to convert 48V dc to 24 V dc for light weight electrical vehicle applications. Low output voltage ripple (0.4%), and soft switching for all power diodes and switches are achieved under the worst-case conditions.

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Section: Resonant Switched Capacitor Convertersmentioning

confidence: 99%

Section: Resonant Switched Capacitor Convertersmentioning

confidence: 99%

Designing A 48 V to 24 V DC-DC converter for vehicle application using a resonant switched capacitor converter topology

Mousavi

Beiranvand

Goodarzi

et al. 2015

The 6th Power Electronics, Drive Systems &Amp; Technologies Conference (PEDSTC2015)

View full text Add to dashboard Cite

show abstract

“…The PV micro-inverters are best choice for installer and consumer [4].The low level voltage from PV panel is stepped to higher level different high step-up dc-dc converters proposed [5]. The various topologies from switched inductor, switched capacitor and transformer less switched capacitor converters also proposed [6]- [8] for high voltage gain. The coupled inductor boost converter with high turns ratio [9] were also proposed.…”

Section: Introductionmentioning

confidence: 99%

Analysis of non-isolated two phase interleaved high voltage gain boost converter for PV application

Babu

Raghavendiran²

2014

2014 International Conference on Control, Instrumentation, Communication and Computational Technologies (ICCICCT)

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This paper proposes the two phase interleaved non isolated boost converter to achieve high voltage gain for Photovoltaic (PV) application. The high voltage gain of the proposed converter increased by high turns ratio of coupled inductor. By the use of coupled inductor in input side of boost converter voltage stress across the switch reduced. The conduction loss and current stress across the switch are reduced by increasing the number of phase. Hence easy to select the power switch reduced input current ripple and output voltage ripple achieved. The primary leakage inductor energy of coupled inductor utilized efficiently. Each switch is turn on by same frequency with phase difference of 2π/2.The simulation results for non-isolated two phase interleaved high voltage gain boost converter was carried out using MATLAB/SIMULINK. The performance parameters such as voltage gain, input ripple are analyzed for single phase and two phase interleaved boost converter. Simulation results are presented to validate proposed converter.

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“…The recent reinvention is mainly to take advantage of the active MOSFET switches for power conversion and output regulation. In 1990, the first SC step-down dc-dc converter was successfully proposed from Japan [3], [4]. Next, researchers followed this idea to get more extensions, including rectifier-inverter types, even for transient/steady-state analysis [5]- [7].…”

Section: Introductionmentioning

confidence: 99%

Design and Analysis of Power-CMOS-Gate-Based Switched-Capacitor Boost DC–AC Inverter

Chang

2004

IEEE Trans. Circuits Syst. I

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A multistage power CMOS-transmission-gate-based (CMOS-TG) quasi-switched-capacitor (QSC) boost dc-ac inverter is proposed and integrated with a boost dc-dc converter for a step-up application with ac or dc load. In this paper, using CMOS-TG as a bidirectional switch, the various topologies can be integrated in the same configuration for achieving two functions: boosting and alternating; boosting for getting a sinusoidal output in which the peak is the result of a many times step-up of the input; alternating to realize the positive/negative half sinusoidal of the output. The inverter does not require any inductive elements as inductor and transformer, so integrated circuit (IC) fabrication will be promising for realization. By using the state-space averaging technique, the large-signal state-space model of the inverter is proposed, and then both the static analysis and dynamic small-signal analysis are derived to form a unified formulation for inverter/converter. Based on this formulation, there are presented for theoretical analysis/control design, including steady-state power, conversion efficiency, voltage conversion ratio, output ripple percentage, capacitance selection, closed-loop control and stability, and total harmonic distortion (THD), etc. Finally, a six-stage QSC boost dc-ac inverter is simulated by PSPICE, and the simulations are discussed for some cases, including: 1) steady-state ac output, ripple percentage, and power efficiency; 2) transient response of the regulated inverter for load variation; 3) a practical capacitive load: electromagnetic luminescent (EL) lamp, and 4) efficiency, ripple percentage, and THD for different loads. The results are illustrated to show the efficacy of the proposed inverter.Index Terms-CMOS-transmission-gate-based (CMOS-TG), quasi-switched-capacitor (QSC), boost DC-AC inverter, state-space averaging technique, total harmonic distortion (THD).

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A new approach to low ripple-noise switching converters on the basis of switched-capacitor converters

Cited by 52 publications

References 3 publications

Designing A 48 V to 24 V DC-DC converter for vehicle application using a resonant switched capacitor converter topology

Designing A 48 V to 24 V DC-DC converter for vehicle application using a resonant switched capacitor converter topology

Analysis of non-isolated two phase interleaved high voltage gain boost converter for PV application

Design and Analysis of Power-CMOS-Gate-Based Switched-Capacitor Boost DC–AC Inverter

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