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Characterisation of a motor driver with over-current protection and speed feedback
The 5th International Conference on Automation, Robotics and Applications, 2011Urban search and rescue robots are becoming more prolific and widely used. However, these robots are still being developed for specific environments and situations. The research being undertaken at Massey University is part of a larger collaboration to produce a multi-tiered robotic system for urban search and rescue. The first major hurdle of a mobile
Brendon Rhys Le Comte, Gourab Sen Gupta
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The design of a family of high-current switches with over-current and over-temperature protection
IEEE Transactions on Instrumentation and Measurement, 1998This paper describes the design and manufacture of a family of five high-current, high-voltage dc switches with over-current and over-temperature protection. The capacity of the switches ranged from 5 A, 163 V to 100 A, 400 V. Steps were taken to achieve stability in over-current and over-temperature trip thresholds with changes in supply voltage and ...
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Design of Numerical Relay for Over Flux and Over Current Protection in Transformers
2018 Internat2018 International Conference on Computation of Power, Energy, Information and Communication (ICCPEIC)ional conference on computation of power, energy, Information and Communication (ICCPEIC), 2018A “Numerical Relay” is a type of protective relay which operates when the line parameters exceed a preset value. This paper is used to design and develop a protection system for transmission line which automatically respond to the over flux and over current fault based on the DMT and IDMT in which the current is measured using SI, VI, and EI ...
P Devipriya, T Sneha, P. Shanmugapriya
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Over current protection coordination of distribution networks with fault current limiters
2006 IEEE Power Engineering Society General Meeting, 2006The connection of new Distributed Generator (DG) to the existing network increases the fault current and disturbs the existing Over Current (O/C) protection coordination. The main focus of this study was to investigate the possibility of using a Fault Current Limiter (FCL) to address the above issues.
Kumara, J. R. S. S. +3 more
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On-line current sensing circuit for the over-current protection of the electronic ballast
2007 8th International Conference on Electronic Measurement and Instruments, 2007A new on-chip current sensing circuit for the over-current protection of the electronic ballast is presented in this paper. The proposed scheme increases the sense accuracy and noise immunity over the full temperature range of the devices and can avoid fault over-current protection.
Yang Xin +3 more
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A novel over-current protection circuit for LED constant current driver
2015 IEEE 16th International Conference on Communication Technology (ICCT), 2015This paper presents a novel over-current protection circuit applied in constant current driver for LED. The circuit uses SENSEFET current sensing technique to sample inductor current, which has a high accuracy. It is different with the traditional over-current protection circuit, which uses voltage comparator.
null Yuqing Sun +2 more
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High and low side high voltage switch with over voltage and over current protection
2013 IEEE Computer Society Annual Symposium on VLSI (ISVLSI), 2013The introduction of monolithic electronics in automotive as well as industrial applications makes switches an ubiquitous building block. In this environment switches need to handle high voltage, high currents densities as well as low power consumption.
Walter Luis Tercariol +2 more
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A novel over-current protection for digital power amplifier
2012 IEEE 11th International Conference on Solid-State and Integrated Circuit Technology, 2012The paper presents a novel over current protection circuit in digital power amplifier. The over current protection circuit would be used to shut down the output buffer when two output pins short-circuit to power supply, short-circuit to ground or short-circuit to each other.
Yong Xu +4 more
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Excess-current protection by over-current relays on medium-voltage circuits
Journal of the Institution of Electrical Engineers - Part II: Power Engineering, 1945The paper reviews existing methods of protection from excess load current in medium-voltage circuits, and outlines problems encountered with the wide variation of industrial applications. The need is stressed for full co-operation between engineers, and also between engineers and the user, in the control-gear, motor and distribution fields.
A.G. Shreeve, P.J. Shipton
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A new IGBT with a monolithic over-current protection circuit
Proceedings of the 6th International Symposium on Power Semiconductor Devices and Ics, 2002A new IGBT structure with a monolithic overcurrent sensing and protection circuit has been developed. The feature of this device is a novel integration of a sensing and protection circuit which consists of a sensing IGBT, lateral n-MOSFET, polycrystalline silicon diode and resistor with an IGBT structure.
Y. Seki +3 more
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