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CHAdeMO connector and protocol for EV fast charging

Date: 2019-02-16Posted by: mrpower

CHAdeMO is the trade name of a quick charging method for battery electric vehicles delivering up to 62.5 kW by 500 V, 125 A direct current via a special electrical connector. A revised CHAdeMO 2.0 specification allows for up to 400 kW by 1000 V, 40...View More

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Loop Gain

Date: 2019-02-25Posted by: mrpower

In electronics and control system theory, loop gain is the sum of the gain, expressed as a ratio or in decibels, around a feedback loop. Feedback loops are widely used in electronics in amplifiers and oscillators, and more generally in both electron...View More

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Magnetic Core

Date: 2019-03-10Posted by: mrpower

A magnetic core is a piece of magnetic material with a high magnetic permeability used to confine and guide magnetic fields in electrical, electromechanical and magnetic devices such as electromagnets, transformers, electric motors, generators, indu...View More

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UL - Safety Standard Organization

Date: 2019-03-10Posted by: mrpower

UL LLC is a global safety certification company headquartered in Northbrook, Illinois. It maintains offices in 46 countries. Established in 1894 as the Underwriters' Electrical Bureau (a bureau of the National Board of Fire Underwriters), it wa...View More

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SiC-Based 6.6kW Bi-Directional, Dual-Active-Bridge Resonant ...

Date: 2019-03-26Posted by: mrpower

The PMP21495 reference design from Texas Instruments is a 6.6kW, bi-directional, dual-active-bridge resonant converter design that accepts a 380Vdc to 600Vdc input and provides a 280Vdc to 450Vdc output. This design uses the C2000 micro-controller T...View More

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An introduction to LLC resonant

Date: 2019-04-21Posted by: louis.xi

Resonant conversion is a topic that is at least thirty years old and where much effort has been spent in research in universities and industry because of its attractive features: smooth waveforms, high efficiency and high power density. Yet the ...View More

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Date: 2019-03-10Posted by: mrpower

A supercapacitor (SC) (also called a supercap, ultracapacitor or Goldcap ) is a high-capacity capacitor with capacitance values much higher than other capacitors (but lower voltage limits) that bridge the gap between electrolytic capacitors and rech...View More

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NEC Class 2 vs. IEC Class II Power Supplies

Date: 2019-03-26Posted by: mrpower

This CUI article provides a good understanding of the differences between NEC Class 2 and IEC Class II power supplies.  NEC Class 2 is about output power limiting to ensure no fire breaks out due to load failures such as short circuit; while IE...View More

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