Results 181 to 190 of about 12,059 (216)
Some of the next articles are maybe not open access.
Single phase ZVS PWM NPC inverter
XI Brazilian Power Electronics Conference, 2011This paper presents a zero-voltage, pulse width modulated, NPC inverter, with active voltage clamping using only two auxiliary switches. The structure is particularly simple and robust. It is very attractive for high-power applications, single or multiple phases, due to neutral point accessible at the NPC topology.
Eduardo Maldaun Barreto +2 more
openaire +1 more source
Gate driver circuit for ZVS mode
2016 XXV International Scientific Conference Electronics (ET), 2016This paper considers problems related with the switching losses in the power supply units, based on a high frequency inverters. Different ways to overcome some of the problems are discussed. A ZVS gate driver circuit for transistors in resonant DC/DC converter is proposed. The influence of the snubber capacitors value is studied.
Yasen Kostadinov Madankov +3 more
openaire +1 more source
Studienplatzvergabe durch die ZVS
1999Der Studiengang Rechtswissenschaft gehort zu den zahlenmasig besonders grosen Studiengangen. Hinter den Wirtschaftswissenschaftlern liegen die Juristen mit rund 111.000 Studenten (Stand: Wintersemester 1995) auf Platz zwei der Rangliste. Jahrlich stehen an den 40 anbietenden Universitaten den 21.600 Bewerbern rund 17.500 Studienplatze zur Verfugung ...
openaire +1 more source
2021
At the end of the 17th century, a small enameled cross was discovered in one of the royal graves in Saint Bendt's church in Danish Ringsted. According to the record of the administrator of the Danish Royal Treasury, the cross was found in the grave of the Danish Queen Dagmar - the daughter of the King of Bohemia, Ottokar I (+1230).
openaire +1 more source
At the end of the 17th century, a small enameled cross was discovered in one of the royal graves in Saint Bendt's church in Danish Ringsted. According to the record of the administrator of the Danish Royal Treasury, the cross was found in the grave of the Danish Queen Dagmar - the daughter of the King of Bohemia, Ottokar I (+1230).
openaire +1 more source
A new ZC-ZVS forward converter
Proceedings of Applied Power Electronics Conference. APEC '96, 2002This paper presents a steady-state analysis with complete characterization of ZCS-ZVS forward power converter operation. The nondissipative snubber associated with a forward power converter provides the soft commutation switching. The proposed approach allows building a converter with high frequency operation.
A.A. Pereira +4 more
openaire +1 more source
Newly Designed ZVS Multi-Input Converter
IEEE Transactions on Industrial Electronics, 2011A newly designed zero-voltage-switching (ZVS) multi-input converter is proposed in this paper. The converter can boost the different voltages of two power sources to a stable output voltage. An auxiliary circuit is employed for achieving turn-on ZVS of all switches in the proposed converter.
Rong-Jong Wai +3 more
openaire +1 more source
Proceedings of 1994 Power Electronics Specialist Conference - PESC'94, 2002
This paper presents a buck DC to DC power converter, whose features are zero voltage and zero current switching, operation at constant frequency, regulation by pulse width modulation and low RMS current stresses on active devices. The main goal of this topology when compared with the classical ZVS-PWM one is the ability to work with a wide load range ...
H.L. Hey, L. Matias, J.B. Viera
openaire +1 more source
This paper presents a buck DC to DC power converter, whose features are zero voltage and zero current switching, operation at constant frequency, regulation by pulse width modulation and low RMS current stresses on active devices. The main goal of this topology when compared with the classical ZVS-PWM one is the ability to work with a wide load range ...
H.L. Hey, L. Matias, J.B. Viera
openaire +1 more source
A simple clamped ZVS PWM converter
Proceedings Eighth Annual Applied Power Electronics Conference and Exposition,, 2002A buck derived power converter which accomplishes clamped zero voltage switching at both turn on and turn off transitions while maintaining low core and conduction losses is described. The converter provides output isolation and can be simply extended to multi-output applications and other-than-buck topologies.
openaire +1 more source
Asymmetric Half-Bridge ZVS-PWM Converter
2018The aim of this chapter is to provide the reader with knowledge about the asymmetric half-bridge zero voltage switching, pulse width modulation, converter (A-HB-ZVS-PWM). After the presentation of the power converter topology, the qualitative analysis is done, which includes the description of operation, topological states for each time interval and ...
Ivo Barbi, Fabiana Pöttker
openaire +1 more source
Complete ZVS Analysis in Dual Active Bridge
IEEE Transactions on Power Electronics, 2021Yu Yan, Handong Gui, Hua Bai
exaly