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trends in power electronics and drives
trends in power electronics and drives

... Power Density ...
Evaluation of maximum power point tracking methods for
Evaluation of maximum power point tracking methods for

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Working With Optically-Isolated Relays
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... Mean Time To Failure (MTTF) equals 1/the failure rate λ. λ is expressed in terms of failures per unit of time (FIT), where 1 FIT=1 failure per billion device hours. The failure rate of Panasonic’s PhotoMOS optically-isolated relays is 20 FIT which means that MTTF is 1/(20*10*-9) based on the THB tes ...
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D.J. Perreault, R.L. Selders, and J.G. Kassakian, Frequency-Based Current-Sharing Techniques for Paralleled Power Converters, IEEE Transactions on Power Electronics , Vol. 13, No. 4, July 1998, pp. 626-634.
D.J. Perreault, R.L. Selders, and J.G. Kassakian, Frequency-Based Current-Sharing Techniques for Paralleled Power Converters, IEEE Transactions on Power Electronics , Vol. 13, No. 4, July 1998, pp. 626-634.

... characteristic of a parallel converter architecture is that the individual converters share the load current equally and stably. The current-sharing behavior of the system is largely dependent on the manner in which the individual converters are controlled. Many parallel converter systems use some f ...
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... This versatile unit is easy to wire and mount. It offers an excellent upgrade path, allowing you to start with a low-cost base model and add enhanced functionality over the long term. The ION 6200 is the industry's first basic meter that lets you upgrade functionality in the field by activating the ...
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Variable-frequency drive



A variable-frequency drive (VFD) (also termed adjustable-frequency drive, variable-speed drive, AC drive, micro drive or inverter drive) is a type of adjustable-speed drive used in electro-mechanical drive systems to control AC motor speed and torque by varying motor input frequency and voltage.VFDs are used in applications ranging from small appliances to the largest of mine mill drives and compressors. However, around 25% of the world's electrical energy is consumed by electric motors in industrial applications, which are especially conducive for energy savings using VFDs in centrifugal load service, and VFDs' global market penetration for all applications is still relatively small. That lack of penetration highlights significant energy efficiency improvement opportunities for retrofitted and new VFD installations.Over the last four decades, power electronics technology has reduced VFD cost and size and has improved performance through advances in semiconductor switching devices, drive topologies, simulation and control techniques, and control hardware and software.VFDs are available in a number of different low- and medium-voltage AC-AC and DC-AC topologies.
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