Results 191 to 200 of about 5,354 (222)
Some of the next articles are maybe not open access.
Impact of Snubber Circuit Inductance on Damping Late Currents in a Pulsed Power Circuit
2018 20th International Symposium on High-Current Electronics (ISHCE), 2018The discharge in a repetitively pulsed TE gas laser begins its lasing cycle by being homogenous in nature but quickly (10s of ns later) transitions into filamentary mode due to plasma discharge instabilities. The filamentary discharge transitions into an arc mode which presents a very low impedance path for the pulsed power circuit.
Harpreet Singh Grover +2 more
openaire +1 more source
Snubber circuit for diode-clamped four-levelinverter and converter
IEE Proceedings - Electric Power Applications, 2001The snubber circuit makes use of Undeland and McMurray snubbers in the basic snubber unit, and can be regarded as a generalised combined Undeland and McMurray snubber. The proposed snubber features fewer components, improved efficiency due to low snubber loss, overvoltage clamping across main switching devices, and no imbalance problem of the blocking ...
I.-D. Kim, E.-C. Nho, J.-S. Ko
openaire +1 more source
Comparative study of RC snubber configurations in switching circuits
2019 IEEE 15th Brazilian Power Electronics Conference and 5th IEEE Southern Power Electronics Conference (COBEP/SPEC), 2019This article shows a study of the dissipative passive RC snubber configurations, by using theoretical and experimental data. For that, the buck converter is use to analyse the impact of these devices in the circuit. Three projects of the RC snubber are analyse and compare, with that the device that shows a better performance in the circuit will be ...
Ana Carolina Moreira +4 more
openaire +1 more source
Design and Simulation of RC-Snubber Circuits for IGCTs in Series
2012 Asia-Pacific Power and Energy Engineering Conference, 2012IGCTs are connected in series for higher voltage applications. The paper takes ABB's 5SHY35l4510 IGCT as the research object. A RC-snubber circuit is designed for series-connected IGCTs. The values of capacity and resistance in this RC-snubber circuit are calculated. Then, the RC-snubber circuit is simulated by PSIM and experimented in laboratory.
Renwang He, Wanying Qiu
openaire +1 more source
An IGBT turn-on snubber circuit with passive energy recovery
International Journal of Electronics, 1998An inductive turn-on snubber with passive energy recovery for IGBTs used in single ended applications and asymmetrical half bridges is presented. Snubber inductive stored energy at switch turn-off is passively recovered into the load. In so doing, limited capacitive turn-off snubbering is inherently achieved, which reduces IGBT voltage during its tail ...
openaire +1 more source
Snubber Circuits, Triggering, Cooling, and Protection Devices
1986For power semiconductors to operate properly in converter connections three prerequisites must be satisfied: 1. They should be protected from undue transient voltage and current stresses. 2. Controlled power semiconductors such as thyristors or power transistors need suitable drive units to generate the necessary gate or base ...
openaire +1 more source
The effect of the regenerative Undeland snubber circuit on inverter loads
Conference Record of the 1992 IEEE Industry Applications Society Annual Meeting, 2003The influence of a particular snubber circuit on voltage source inverter loads is investigated. The protective turn-on and turn-off snubber, as proposed by T.M. Undeland et al. (1984), was analyzed for the completely regenerative case to find analytical descriptions for the various transients.
P.M. Swanepoel, J.D. van Wyk
openaire +1 more source
A Brief Review of Active Snubber Circuits for Boost Converter
2018 3rd International Conference for Convergence in Technology (I2CT), 2018This paper reviews the different active snubber topologies for boost converters. At high power levels, boost converters are required to operate at high switching frequencies in order to achieve higher power densities and increased efficiency. However, with increasing frequencies, the switching losses in the boost converter increase along with voltage ...
Sayed Rafay Bin Shah +2 more
openaire +1 more source
Snubber Circuit Design for Transformers in an Urban High Rise Office Building
IEEE Transactions on Industry Applications, 2014Transformer failures have in recent years led to the development of resistor–capacitor snubber circuits for the protection of the transformer and winding insulation from the damaging effects of high-voltage high-frequency transients. Transformer insulation may be damaged if the basic insulation level is exceeded, during turn-to-turn insulation, when ...
openaire +1 more source
DESIGNING OPTIMUM SNUBBER CIRCUITS OR THE TRANSISTOR BRIDGE CONFIGURATION
Electric Machines & Power Systems, 1983ABSTRACT Snubbers are used in power transistor switching circuits to keep the device operation within its Safe Operating Area (SOA) during switching. The conventional series and shunt snubbers are satis -factory in a single transistor circuit. However, these are not satisfactory for a totem pole transistor arrangement.
W. R. PEARSON, P. C. SEN
openaire +1 more source