Results 21 to 30 of about 989 (143)
Design considerations for a high-power dual active bridge DC-DC converter with galvanically isolated transformer [PDF]
, 2017 Multi-megawatt scale isolated DC-DC converters are likely to become increasingly popular as means to interconnect the MVDC grids of different voltage levels. Threephase dual active bridge DC-DC (3DAB) converters operating with the zero-voltage switching (
Lee, Youngsil +3 more
core +1 more source
Generalised Tapped Inductor Switcher (GTIS) approach to modelling of high‐order converters
IET Power Electronics, Volume 14, Issue 4, Page 775-784, 18 March 2021., 2021 Abstract A generalized modelling technique suited to integrated and high order Pulse‐Width‐Modulation (PWM) topologies is studied and proposed here. Most integrated converters have their switches shared by more than one inductive element. The proposed generalised tapped inductor switcher model takes full account of the properties of the shared switcher
Jia Yao +3 more
wiley +1 more source
IET Power Electronics, Volume 14, Issue 1, Page 27-37, January 2021., 2021 Abstract An isolated high step‐up converter is proposed for renewable energy sources with low voltages, such as photovoltaic (PV) cells of solar energy and fuel cells of hydrogen energy, to achieve high voltage levels for series‐connection batteries and DC‐bus voltage sources.
Kuo‐Ching Tseng +2 more
wiley +1 more source
Soft-switching vector control for resonant snubber based inverters [PDF]
, 1997 This paper gives a new classification of soft-switching inverters according to the principle of operation. After discussing the soft-switching phenomena in hard-switching inverters, the concept of soft-switching vector (SSV) is introduced.
Chart, CC, Chau, KT, Yao, Jianming
core +1 more source
Analysis and evaluation of a lossless turn-on snubber [PDF]
Proceedings of APEC 97 - Applied Power Electronics Conference, 2002 A lossless turn-on snubber was studied analytically, by simulation and experimentally. Limits were found for the proper operation of the snubber and are expressed as permissible duty cycle as a function of input current. It was found that a modified version of the snubber, which includes a tapped main inductor, improves the performance by allowing a ...
H. Levy +3 more
openaire +1 more source
Passive lossless snubber for double‐ended flyback converter
IET Power Electronics, 2015 Double‐ended flyback converter is one of the most popular topologies employed as a power supply or a power factor correction converter. Reducing switching losses at high switching frequencies is essential. In this study, a passive lossless snubber for double‐ended flyback converter is introduced.
Mehdi Mohammadi +2 more
openaire +1 more source
A novel soft-switching inverter using resonant inductor freewheeling [PDF]
, 1997 A novel topology of the voltage-source soft-switching inverter for induction motor drives is presented. The key of this topology is to employ two fractional-duty auxiliary switches and one resonant inductor per phase to provide a favorable zero-voltage ...
Chan, CC, Chan, DTW, Chau, KT, Yao, JM
core +1 more source
Elektronika ir Elektrotechnika, 2018 So as to keep the converter in small size, high switching frequencies are normally used. As a result, in higher frequencies, switching losses seriously affect the efficiency.
Davood Ghaderi +3 more
doaj +1 more source
A single phase voltage regulator module (VRM) with stepping inductance for fast transient response [PDF]
, 2007 A single-phase fast transient converter topology with stepping inductance is proposed. The stepping inductance method is implemented by replacing the conventional inductor in a buck converter by two inductors connecting in series.
Liu, JCP, Lu, DDC, Pong, BMH, Poon, FNK
core +1 more source
DC-DC converter with 50 kHz-500 kHz range of switching frequency for passive component volume reduction [PDF]
, 2021 This paper presents the relationship of switching frequency towards passive components volume of DC-DC boost converter. Principally, the inductor current ripple and capacitor voltage ripple must be considered in order to design the inductor and capacitor,
Che Ibrahim, Nor Azmira +5 more
core +3 more sources