Results 21 to 30 of about 532,709 (209)

Soft Switching Full-Bridge PWM DC/DC Converter Using Secondary Snubber [PDF]

open access: yesJournal of Electrical and Electronics Engineering, 2009
A novel full-bridge PWM DC/DCconverter with controlled secondary side rectifier usingsecondary snubber is presented in this paper.Limitation of the circulating current as well as softswitching for all power switches of the inverter isachieved for full ...
Jaroslav Dudrik   +4 more
doaj  

Design zero-voltage switching DC-DC buck converter [PDF]

open access: yes, 2014
This report proposes an integrated, high switching frequency, zero-voltage-switching dc-dc buck converter for battery charger application. The design and analysis of dc dc buck converter with integrated inductor is presented.
Chan, S. W.   +4 more
core   +1 more source

Soft switching DC/DC converter using auxiliary circuits [PDF]

open access: yesJournal of Electrical and Electronics Engineering, 2008
A novel auxiliary circuit for full-bridge PWMDC/DC converter with controlled secondary side rectifieris presented in this paper. Zero-current turn-on for allpower switches of the inverter is achieved for full loadrange from no-load to short circuit by ...
Jaroslav Dudrik, Vladimír Ruščin
doaj  

A new zero-voltage-transition converter for switched reluctance motor drives [PDF]

open access: yes, 1998
Firstly, a new zero-voltage-transition (ZVT) power converter for switched reluctance motor drives is presented. The proposed ZVT converter possesses the definite advantages that both main transistors and diodes can operate with zero-voltage switching ...
Chan, CC, Chau, KT, Ching, TW
core   +1 more source

Digital simulation of FM-ZCS-quasi resonant converter fed DD servo drive using Matlab Simulink [PDF]

open access: yesSerbian Journal of Electrical Engineering, 2009
This paper deals with digital simulation of FM-ZCS-quasi resonant converter fed DC servo drive using Matlab Simulink. Quasi Resonant Converter (QRC) is fast replacing conventional PWM converters in high frequency operation.
Kattamuri Narasimha Rao   +1 more
doaj   +1 more source

Bidirectional soft-switching converter-fed DC motor drives [PDF]

open access: yes, 1998
Two new soft-switching DC-DC power converters, with the capabilities of bidirectional power flow and soft-switching (either zero-voltage transition or zero-current transition) are developed for DC motor drives.
Chan, CC, Chau, KT, Ching, TW
core   +1 more source

Phase Diffusion in Single-Walled Carbon Nanotube Josephson Transistors [PDF]

open access: yes, 2007
We investigate electronic transport in Josephson junctions formed by single-walled carbon nanotubes coupled to superconducting electrodes. We observe enhanced zero-bias conductance (up to 10e^2/h) and pronounced sub-harmonic gap structures in ...
Lau, C. N., Liu, G., Zhang, Y.
core   +2 more sources

A novel two-quadrant zero-current transition converter for dc motor drives [PDF]

open access: yes, 1998
A novel two-quadrant (2Q) zero-current-transition (ZCT) converter with the capabilities of 2Q power flow, and ZCT switching profile for DC motor drives is presented.
Chan, CC, Chau, KT, Ching, TW
core   +1 more source

Comparative study of macroscopic quantum tunneling in Bi_2Sr_2CaCu_2O_y intrinsic Josephson junctions with different device structures [PDF]

open access: yes, 2009
We investigated macroscopic quantum tunneling (MQT) of Bi$_2$Sr$_2$CaCu$_2$O$_y$ intrinsic Josephson junctions (IJJs) with two device structures. One is a nanometer-thick small mesa structure with only two or three IJJs and the other is a stack of a few ...
Hamada, K.   +8 more
core   +2 more sources

Thermally assisted spin transfer torque switching in synthetic free layers

open access: yes, 2011
We studied the magnetization reversal rates of thermally assisted spin transfer torque switching in a ferromagnetically coupled synthetic free layer theoretically.
Imamura, Hiroshi, Taniguchi, Tomohiro
core   +1 more source

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