CHARGED Electric Vehicles Magazine – July-August 2019
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THE TECH Researchers at Germany’s Fraunhofer Institute for Ma- terial and Beam Technology IWS have developed a new battery cell ...
The US Department of Energy is sponsoring a competi- tion to encourage the development of a process to recycle 90 percent of the ...
24 THE TECH LED and semiconductor manufacturer Cree will invest up to $1 billion to expand its silicon carbide materials capabil ...
GBatteries has launched an AI-powered charging protocol designed to charge conventional Li-ion batteries as quickly as a car can ...
THE TECH Wildcat Discovery Technologies, a company that uses high-throughput methods to develop next-generation battery material ...
Electronic parts maker ROHM has announced four new automotive-grade 1,200 V-rated insulated-gate bipolar transistors (IGBTs) for ...
CURRENT SENSORS 28 P By Jeffrey Jenkins IN EVS A CLOSER LOOK AT retty much every electronic circuit that handles significant pow ...
CURRENT SENSORS JUL/AUG 2019 29 There is an even more diverse array of current sen- sors which output a signal in proportion to ...
and only amplify the difference voltage, but in the real world this doesn’t happen because of imperfect com- mon mode rejection ...
the path the current takes, and this sets up a slight charge imbalance across the width of the conductor. The Hall ef- fect occu ...
32 effectively set the minimum resolvable current) of +/- 20 mV out of a full scale value of +/- 4 V. Consequently, a 500 A full ...
main downside is the practi- cal lower limit on frequency (core area required is inversely proportional to frequency), so these ...
PRE-SWITCH PROMISES TO ADD 5-12% MORE EV RANGE BY ELIMINATING SWITCHING LOSES 34 By Paul Beck THE TECH ...
JUL/AUG 2019 35 ow would you like it if your EV could go ten percent farther with the same size battery? You’d love it, of cours ...
36 Most convertors suffer from a problem called switching loss. To convert from DC to AC, an invertor uses switches - transistor ...
iliary resonant switches and the main working switches for each phase leg. Adjustments are made on a cycle-by-cycle basis. When ...
38 ers can operate 5-20 times faster, depending on the inverter switch type. Faster inverter switching speeds have two main bene ...
trying to build a high-quality audio amplifier. To produce the best sound, you need quick switching, and the engineer soon found ...
40 ability testing in Pre-Switch’s lab. A successful field test, of which Renouard is confident, will see the mystery manufactur ...
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