Results 251 to 260 of about 11,214 (304)

Flying Capacitor Voltage Programed Mode Control for Switched-Capacitor Converters

IEEE Journal of Emerging and Selected Topics in Power Electronics, 2020
This article introduces a control method for switched-capacitor (SC) converters used directly or indirectly in emerging point-of-load (PoL) applications. Compared to conventional methods of controlling SC converters relying on the simple transformer model, the introduced method takes into account system dynamics and improves transient response by ...
Tim McRae, Thomas Souvignet, Basil Eleftheriades, Aleksandar Prodic, Bruno Allard   +4 more
openaire   +4 more sources

Flying-capacitor boost converter

2012 Twenty-Seventh Annual IEEE Applied Power Electronics Conference and Exposition (APEC), 2012
This paper introduces the flying-capacitor dc-dc boost converter. In the proposed topology, a high voltage gain ratio and improved conversion efficiency are achieved with low inductor core and copper losses. The input current ripple of the new converter is low while its ripple frequency is high, yielding a low-sized input filter.
Hamidreza Keyhani, Hamid A. Toliyat
openaire   +1 more source

The ARCP flying capacitor inverter

2005 European Conference on Power Electronics and Applications, 2005
Reduction of switching losses is an important issue in development of high power multilevel converters. Improvement of the known soft switching techniques to find application in multilevel topologies is therefore a worth attempt started recently. This paper proposes a new auxiliary circuit for the flying capacitor multilevel converters realizing soft ...
A. Radan, M. Samaram
openaire   +1 more source

New flying capacitor multilevel converter

2011 IEEE International Symposium on Industrial Electronics, 2011
This paper proposes an improved version of conventional flying capacitor multilevel converter known as active flying capacitor converter. The proposed converter replaces the clamping capacitor of the three-level flying capacitor converter by number of series connected half or full bridge cells, and uses these active cells to generate multilevel voltage
Adam, Grain Philip, Alajmi, Bader N F M T, Ahmed, Khaled, Finney, Stephen, Williams, Barry   +4 more
openaire   +2 more sources

Active capacitor voltage control of flying capacitor multilevel converters

IEE Proceedings - Electric Power Applications, 2004
A novel control strategy for voltage balancing of flying capacitor multilevel converters controlled with phase shifted SPWM is presented. Based on the polarity of the phase current, a relatively small square wave is added to the nominal modulation signals (typically sinusoidal) controlling the converter switches and in this way the flying capacitor ...
Xu, L., Agelidis, V.G.
openaire   +2 more sources

Capacitor Voltage Balancing Schemes in Flying Capacitor Multilevel Inverters

2007 IEEE Power Electronics Specialists Conference, 2007
This paper focuses on the development of capacitor voltage balancing methods in a flying capacitor multilevel inverter (FCMLI). Three such strategies have been described and have been applied to a five-level CMLI. The sinusoidal pulse width modulation technique has been used while making the proposals.
Anshuman Shukla, Arindam Ghosh, Avinash Joshi   +2 more
openaire   +1 more source

Constant Effective Duty Cycle Control for Flying Capacitor Balancing in flying Capacitor Multi-Level Converters

2018 IEEE 19th Workshop on Control and Modeling for Power Electronics (COMPEL), 2018
One of the challenges of utilizing Flying Capacitor Multi-Level (FCML) converters is the flying capacitor balancing. Poorly balanced flying capacitors increase the switch voltage stress, which is detrimental to performance and device rating requirements.
Andrew Stillwell, Enver Candan, Robert C. N. Pilawa-Podgurski   +2 more
openaire   +1 more source

Universal precharging method for dc-link and flying capacitors of four-level Flying Capacitor Converter

IECON 2013 - 39th Annual Conference of the IEEE Industrial Electronics Society, 2013
This paper investigates universal start-up procedure for Flying Capacitor Converter (FLC). Main part of this procedure is pre-charging of the dc-link and flying capacitors. This method is usable for voltage pre-charging in rectifier as well as inverter mode of the multilevel FLC converter. This specific feature is based on use of converter topology and
Dusan Janik, Tomas Kosan, Petr Kamenicky, Zdenek Peroutka   +3 more
openaire   +1 more source

New method for estimating flying capacitor voltages in stacked multicell and flying capacitor multicell converters

Journal of Zhejiang University SCIENCE C, 2010
Multicell converters are an interesting alternative for medium voltage and high power applications, because of the increased number of output voltage levels and apparent frequency. The two most significant types of multicell converter are the flying capacitor multicell (FCM) converter and its derivative, stacked multicell (SM) converter.
Arash Khoshkbar Sadigh, Gevorg B. Gharehpetian, Seyed Hossein Hosseini   +2 more
openaire   +1 more source

A 48V:2V flying capacitor multilevel converter using current-limit control for flying capacitor balance

2017 IEEE Applied Power Electronics Conference and Exposition (APEC), 2017
This work explores the well-known challenge of achieving voltage balance of capacitors in arbitrary (N-level) flying capacitor multilevel (FCML) converters. In particular, we explore the relationships among measurable circuit waveforms and flying capacitor voltage ‘states’.
Jan S. Rentmeister, Jason T. Stauth
openaire   +1 more source