Results 231 to 240 of about 82,834 (266)

A matrix converter without diode clamped over-voltage protection

Proceedings IPEMC 2000. Third International Power Electronics and Motion Control Conference (IEEE Cat. No.00EX435), 2002
In this paper, the design and testing of a new protection strategy for a matrix power converter feeding an induction motor is described. The new protection strategy, with excellent overvoltage protection, allows to remove the large and expensive diode clamp.
Mahlein, Jochen, Braun, Michael
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Under Voltage and Over Voltage Monitor to Protect the Electrical Load

2019 IEEE PES/IAS PowerAfrica, 2019
This research paper is presented to design a system that will monitor and protects the electrical loads from under voltage and over voltage supply, which may be due to unforeseen adverse effects of electrical voltages or voltage fluctuations. These adverse effects of voltage will affect the power quality that is being supplied to the electrical loads ...
openaire   +1 more source

Research on Protection Measure for Very Fast Transient Over-Voltage of GIS

2009 Asia-Pacific Power and Energy Engineering Conference, 2009
Based on Tian huangping GIS Substation, very fast transient over-voltage caused by disconnecting switch operation of GIS is simulated and calculated in this paper with ATP-EMTP program. The effect of protection measures on equipments is compared and analyzed, such as adding opening and closing resistor, MOA, R-C absorber, and Ferrite Rings.
Hongsheng Li, Lingxia Gan, Lei Li, Yuanyuan Zhou, Yinfeng Xu   +4 more
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Integrated monolithic over-voltage protection circuit with adjustable threshold voltage

Conference Record of the 2004 IEEE Industry Applications Conference, 2004. 39th IAS Annual Meeting., 2004
A new over-voltage protection circuit has been developed. In this protection circuit, the dissipative part is monolithically integrated in the same protected power chip with almost no additional technologic process or modifications. This monolithic integration takes advantage of main switch cooling system to extract over heating.
M.F. Alkayal, J.-C. Crebier
openaire   +1 more source

An enclosed spark-gap for over-voltage protection

Journal of the Institution of Electrical Engineers - Part IIIA: Radiolocation, 1946
In radar circuits, if, under fault conditions, the modulator cable is not discharged, overvoltages may arise which are dangerous to components. The paper describes a spark-gap employed as a protective device. Such a gap should break down without time-lag at a little above the circuit-operating voltage.
H. de B. Knight, L. Herbert
openaire   +1 more source

Radioactive resistance of elements for over-voltage protection of low-voltage systems

Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 1998
Abstract Aim of this work is to examine the over-voltage protection under the ionizing radiation influence. The use of modern electronic devices (nuclear, military and space technology) in the conditions of ionizing radiation brings up the question of radioactive resistance of electronic components and over-voltage protection components. The question
Osmokrović, Predrag V., Stojanović, M., Lončar, Boris B., Kartalović, Nenad M., Krivokapić, I.   +4 more
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A simple circuit for over-voltage and load protection for regulated power supplies

International Journal of Electronics, 1972
A simple circuit consisting of a linear differential amplifier IC chip and a few components is described which would provide the over-voltage and current protection for regulated power supplies. The circuit is also capable of providing under-voltage indication and both the over- and under-voltages can be preset by simple potentiometric adjustment.
R. DATTA GUPTA, D. K. BASU, P. K. DAS
openaire   +1 more source

Design and characterization of the 600 V IGBT with monolithic over-voltage protection

PESC Record. 27th Annual IEEE Power Electronics Specialists Conference, 2002
A 600 V IGBT with a monolithic overvoltage protection circuit has been developed to provide protection against overvoltage stress. The device operates under normal operating conditions just like a conventional IGBT but is able to sustain much higher avalanche energy under the abnormal operating condition of voltage overshoot.
Z.J. Shen, S.P. Robb, C. Cheng
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An Over Voltage Protection Circuit for Series Regulator Power Supplies

IETE Journal of Education, 1975
AbstractAn over voltage protection circuit that protects the load from over voltages, in case of series transistor failure in a series regulator is discussed here. If the series transistor gets open between collector and emitter terminals, output becomes zero. In case of a short this circuit comes into action and makes the output voltage fall to zero.
openaire   +1 more source

Design of Over-Voltage Protection in Class-E Push-Pull Converter

2025 Energy Conversion Congress & Expo Europe (ECCE Europe)
This paper presents the design and implementation of a voltage clamp protection circuit for a high-frequency Class E push-pull resonant converter, addressing over-voltage surges caused by gating signal malfunctions. The study investigates the impact of gate propagation delay on over-voltage spikes and proposes an optimized RCD clamp circuit to ...
Mujtaba, Hassan; id_orcid 0009-0008-8629-0761, Ahmad, Faheem; id_orcid 0000-0003-0079-3592, Aunsborg, Thore Stig, Jørgensen, Jannick Kjær, Munk-Nielsen, Stig; id_orcid 0000-0001-9653-5437   +4 more
openaire   +3 more sources