Results 11 to 20 of about 266 (133)
A new soft switching bridgeless PFC converter with lossless snubber [PDF]
2016 International Conference on Applied Electronics (AE), 2016 Increasing use of rectifiers causes harmonics pollution in networks. So use of power factor correction (PFC) in converters is inevitable. For reducing weight and volume of converters, designers try to increase switching frequency. The switching losses and conduction losses are two sources of losses in the switching power converter. Thus to reduce these
Mahdavi, Mohammad, Ghasemi, Amir Hosein
openaire +3 more sources
IEEE Open Journal of Power ElectronicsThis paper introduces a soft-switched high step-up converter applicable to photovoltaic systems. In the proposed topology, to further improve the voltage gain and reduce the components voltage stress, coupled inductors and voltage multiplier cell (VMC ...
Mohammad Reza Gholami +4 more
doaj +2 more sources
An Interleaved Step-up DC-DC Converter with Lossless Snubber
Majlesi Journal of Electrical EngineeringIn this paper, an interleaved step-up converter with two lossless snubbers is introduced, where the snubbers ensure zero-current switching for the main switches, eliminating the need for extra switches.
Arman Hovsep +3 more
doaj +2 more sources
A Flyback Converter With Novel Active Dissipative Snubber
IEEE Access, 2022 The active clamp flyback converters (ACF) can provide features of high power density and high power efficiency. However, ACF is usually applied to in the applications of medium-to-high power range.
Yeu-Torng Yau, Tsung-Liang Hung
doaj +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 snubbers for DC/DC converters [PDF]
APEC '98 Thirteenth Annual Applied Power Electronics Conference and Exposition, 1998 Passive lossless snubbers are proposed to improve the turn-on and turn-off transients of the MOSFETs in PWM DC/DC power converters. Switching losses and EMI noises are reduced by restricting the di/dt of the reverse recovery current and the dv/dt of the drain-source voltage. The MOSFET operates at ZVS turn-off and near ZCS turn-on.
Tseng, Ching-Jung, Chen, Chern-Lin
openaire +2 more sources
IET Power Electronics, Volume 16, Issue 15, Page 2492-2503, 25 November 2023., 2023 Lithium ion batteries have a very wide application range. They can power up small electronic devices such as smart watches to larger electric vehicles. Due to its varied range of applications, they come in different packaging and in such battery packs, even when individual cell voltage exceeds by a few milli‐volts above 4.2 V, it may result in thermal ...
Umapathi Krishnamoorthy +3 more
wiley +1 more source
IET Power Electronics, Volume 16, Issue 11, Page 1913-1928, 19 August 2023., 2023 (1) This paper proposes a novel interleaved ultra‐large gain zero‐voltage switching (ZVS) DC–DC converter for renewable energy systems. (2) By using coupled inductor (CI) and built‐in transformer (BIT), a high‐voltage gain is achieved. (3) The secondary windings of the CIs are connected in series with the primary winding of the BIT and the secondary ...
Tohid Nouri
wiley +1 more source
An interleaved high step‐down coupled inductor based quadratic DC‐DC converter
IET Power Electronics, Volume 16, Issue 9, Page 1558-1572, 24 July 2023., 2023 A high step‐down DC‐DC buck converter with a coupled‐inductor in its topology is presented in this study. The switching pattern of the proposed converter is interleaved; therefore, the voltage stress on the semiconductors and the components is low since the primary high voltage will be divided between the blocking capacitors on the primary side ...
Reza Pashaie +2 more
wiley +1 more source
IET Power Electronics, Volume 15, Issue 15, Page 1713-1724, 25 November 2022., 2022 Abstract In this paper, a new ZVT forward converter is presented in which the third winding of the forward converter is utilised to transfer power from the input to the output, recover the energy of the leakage inductance and snubber capacitance, and also provide ZVS condition for the converter switch.
Monireh Ghorbanian +3 more
wiley +1 more source