A high power density single-phase inverter using stacked switched capacitor energy buffer

McHugh, Colin; Sinha, Sitabhra; Meyer, Jeffrey F.; Pervaiz, Saad; Lü, Jie; Zhang, Fan; Chen, Hua; Kim, Hyeokjin; Anwar, Usama; Kumar, Ashish; Sepahvand, Alihossein; Jensen, Scott; Choi, Byung Chul; Seltzer, Daniel; Erickson, Robert W.; Maksimović, Dragan; Afridi, Khurram K.

doi:10.1109/apec.2016.7468135

Cited by 13 publications

(1 citation statement)

References 20 publications

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“…The use of SSC architectures, which reconfigure capacitors between parallel and series combinations to decouple power energy, results in an interesting alternative for improving energy utilization [53]. This method adds a switching circuit that includes a block of capacitors and switches to eliminate the use of electrolytic capacitors.…”

Section: Ssc Architecturesmentioning

confidence: 99%

Active Power-Decoupling Methods for Photovoltaic-Connected Applications: An Overview

Rodríguez-Benítez,

Ponce-Silva,

Aqui-Tapia

et al. 2023

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This study compares ripple port, stacked switched capacitor, and capacitive energy storage architectures for active power decoupling, comparing the number of components, performance, energy density, DC-link capacitor reduction, efficiency, and frequency operation to highlight their main benefits and drawbacks for single-phase grid-connected applications. The overview reveals equivalent effective energy density without electrolytic capacitors, as well as enhanced simplicity, performance, and durability, thereby providing stacked switched capacitors as an attractive power-decoupling alternative for multi-stage connected applications, based on the principle that its individual buffer capacitors absorb and deliver energy without tightly constraining their individual terminal voltages, while maintaining a narrow range voltage at the buffer DC port.

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Section: Ssc Architecturesmentioning

confidence: 99%

Active Power-Decoupling Methods for Photovoltaic-Connected Applications: An Overview

Rodríguez-Benítez,

Ponce-Silva,

Aqui-Tapia

et al. 2023

Processes

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Multitrack power factor correction architecture

Chen

Chakraborty

Perreault

2018

2018 IEEE Applied Power Electronics Conference and Exposition (APEC)

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Single-phase universal-input ac-dc converters are needed in a wide range of applications. This paper presents a novel power factor correction (PFC) architecture that can achieve high power density and high efficiency for grid-interface power electronics. The proposed Multitrack PFC architecture is a new development of the Multitrack concept. It reduces the internal device voltage stress of the power converter subsystems, allowing PFC circuits to maintain zero-voltage-switching (ZVS) at high frequency (1 MHz-4 MHz) across universal input voltage range (85 VAC-265 VAC). The high performance of the power converter is enabled by delivering power in multiple stacked voltage domains and reconfiguring the power processing paths depending on the input voltage. This Multitrack concept can be used together with many other design techniques for PFC systems to create mutual advantages in many function blocks. A prototype 150 W, universal ac input, 12 VDC output, isolated Multitrack PFC system with a power density of 50 W/in 3 and a peak end-to-end efficiency of 92% has been built and tested to verify the effectiveness of the Multitrack PFC architecture.

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A High-Power-Density Electrolytic-Free Offline LED Driver Utilizing a Merged Energy Buffer Architecture

Khatua

Shahzad

Pervaiz

et al. 2019

2019 IEEE Applied Power Electronics Conference and Exposition (APEC)

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A high power density single-phase inverter using stacked switched capacitor energy buffer

Cited by 13 publications

References 20 publications

Active Power-Decoupling Methods for Photovoltaic-Connected Applications: An Overview

Active Power-Decoupling Methods for Photovoltaic-Connected Applications: An Overview

Multitrack power factor correction architecture

A High-Power-Density Electrolytic-Free Offline LED Driver Utilizing a Merged Energy Buffer Architecture

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