Science, Space and Technology News 2024
The Kobe University-developed direct current voltage boost converter has much reduced electromagnetic noise and a high energy efficiency of over 91 percent, which is unprecedented for a MHz drive with high voltage multiplier ratio. This ratio is also more than 1.5 times higher than existing designs. Credit: Mishima Tomokazuoffers significantly improved efficiency at a reduced cost and lower maintenance.
The team of Kobe University power electronics researcher Mishima Tomokazu made significant progress in developing a new direct current power conversion circuit. They managed to combine high-frequency switching with a technique that reduces electromagnetic noise and power losses due to heat dissipation, called “soft switching,” while also reducing the number of components and, therefore, keeping cost and complexity low.
“When the circuit changes between two states, there is a brief period when the switch is not completely closed, and at that point there is both a voltage and a current across the switch. This means that during this time the switch acts like a resistor and thus dissipates heat. The more often a switch state changes, the more this dissipation occurs. Soft switching is a technique that guarantees that the switch transitions happen at zero voltage, thus minimizing the heat loss,” explains Dr.
Considering how ubiquitous electrical devices are in our society, the high-efficiency and low-noise operation of direct current power supplies with a high voltage multiplier ratio is extremely important. This Kobe University development will be of great relevance to applications in electric power, renewable energy, transportation, information and telecommunications and medical care.
United Kingdom Latest News, United Kingdom Headlines
Similar News:You can also read news stories similar to this one that we have collected from other news sources.
2024 Toyota Land Cruiser First Drive: Is the Smaller, Cheaper Off-Road SUV Better?Toyota is quite effectively threading the needle with its latest Land Cruiser variant.
Read more »
Japanese Scientists Unveil Game-Changing Material for Magnesium BatteriesScience, Space and Technology News 2024
Read more »
How a new class of Japanese stars is changing baseballJapanese stars help shape MLB. Now MLB helps shape Japanese baseball, too.
Read more »
Medicines Aren’t Very Effective for IBS: Scientists Found What Works BetterScience, Space and Technology News 2024
Read more »
NCAR scientists look at Hawaii fire to better predict Colorado wildfiresThese new fire forecasting tools will not only help with firefighting efforts and safer evacuations but also help planners design more wildfire-resistant communities
Read more »
Scientists spin century-old Murray’s Law to make better bio-inspired materialsThe 'Universal Murray's Law' promises functional materials of the future, ranging from improved energy storage to more efficient catalysis.
Read more »