May 23, 2022

Crocus Apresenta o Futuro dos Sensores de Corrente Isolada Sem Contato de Alta Precisão

O CT45x apresenta as vantagens dos sensores TMR para repensar e simplificar as soluções no espaço das aplicações de alta precisão e alta corrente

MILPITAS, Califórnia, May 23, 2022 (GLOBE NEWSWIRE) — A Crocus Technology Inc., principal fornecedora de sensores disruptivos XtremeSense ® TMR (Tunnel Magneto-Resistance), anunciou hoje lançamento da família CT45x de sensores de corrente isolada sem contato para medições de alta precisão e alta corrente em uma solução mais simplificada. Ao contrário das soluções existentes, o CT45x permite que os fabricantes eliminem blindagens, concentradores ou núcleos caros. O CT452 e o CT453 oferecem precisão de 0,7% sem contato, largura de banda de 1 MHz e imunidade superior a -50 dB para campos magnéticos externos sem componentes mecânicos adicionais. Essa combinação de desempenho e precisão permite que os clientes reduzam o tamanho e o peso geral do produto, viabilizando a substituição dos módulos sensoriais atuais grandes e caros por uma solução pequena e simples.

O aumento dos requisitos atuais também aumentou os desafios das medições de altas correntes com precisão, tipicamente >200 A e muitas vezes até 2.000 A. Os resistores de derivação com amplificadores isolados são amplamente usados, mas apresentam um problema com perdas de I²R e tendem a ser grandes e caros. As soluções existentes de base magnética, tais como Hall Effect e AMR, são menos precisas e têm deriva de alta temperatura. Os produtos CT45x tem por vase a tecnologia XtremeSense TMR que oferece o futuro com uma abordagem sem contato de alta relação sinal-ruído (SNR) que pode ser dimensionada com os requisitos do sistema, alta largura de banda e tempo de resposta rápido, rejeição de campo de modelo comum, juntamente com as medições de alta precisão em condições de alta temperatura.

Além disso, muitas aplicações agora exigem medições de corrente muito precisas na faixa de até 1.000 A miliamperes ou mais. Muitas vezes, esse tipo de solução envolve vários sensores de corrente para alcançar o desempenho desejado do sistema com muitos comprometimentos e complexidades do projeto. O uso dos sensores de corrente XtremeSense TMR da Crocus viabiliza uma solução simples e sem comprometimento, por meio do uso de um único sensor CT45x que fornece uma grande faixa dinâmica e uma alta SNR. Por exemplo, o CT45x pode medir até 500 mA de resolução e até 1.800 A, mantendo uma precisão superior a 0,7%.

O CT45x oferece desempenho de ruído inovador, de até 0,55 mV_RMS, para permitir que as aplicações detectem pequenos níveis de corrente e pequenas mudanças ou variações de corrente através de um barramento. Este desempenho é quase 10 vezes melhor do que as soluções Hall Effect existentes. Isso resulta em uma SNR (relação sinal-ruído) de até 77 dB para a medição CT45x, o que permite que o sistema processe dados de maior resolução com maior precisão.

“Com a família CT45x de produtos de sensores atuais sem contato, passamos a oferecer um portfólio completo de produtos para os nossos clientes, desde pequenas correntes até correntes maiores”, disse Zack Deiri, Presidente e CEO da Crocus Technology. “Este produto que tem por base a tecnologia TMR de ponta da Crocus é o mais importante no momento, pois os benefícios do nosso XtremeSense TMR agora abordam as necessidades das aplicações atuais mais altas que não podem ser atendidas com soluções existentes sem comprometimento. A Crocus está entusiasmada em poder abordar novos mercados de alta corrente, como BMS, Inversores, DC/DC Converter e muitos outros.”

Características e desempenho do produto:

CT450 e CT452 (Versão 5 V) e CT453 (Versão 3.3 V)

Sensor de Corrente Isolado Sem Contato

Medição de correntes de 5 mA a >2.000 A

Total de erro da saída ±0,7% Completa e

Tempo de resposta de 300 ns, largura de banda de 1 MHz

Disponível em seis diferentes faixas de campo configuradas

Capacidade de proteção com Detecção de Excesso em Campo (OFD)

Rejeição de Campo de Modo Comum Integrado (CMFR) com > 90% de imunidade(CT452/3)

Detecção uniforme do campo magnético (CT450)
Foco em aplicações de direcionamento em Carregadores EV, Sistemas de Gerenciamento de Baterias (BMS), Conversores CC/CC, Sistema 48-V, Carregamento Bidirecional e Inversores CA/CC.

O CT450 está disponível em um pacote TSSOP-8. O CT452/3 está disponível no pacote TSSOP-16. Para mais informação, visite a página do produto em:

CT450 https://crocus-technology.com/products/ct450/

CT452 https://crocus-technology.com/products/ct452/

CT453 https://crocus-technology.com/products/ct453/

Sobre a Crocus Technology

A Crocus Technology desenvolve e fabrica sensores magnéticos de última geração com base na sua tecnologia patenteada de sensores XtremeSense® TMR. A tecnologia do sensor magnético disruptivo da Crocus viabiliza a mais alta sensibilidade, o menor consumo de energia e o menor tamanho em uma ampla faixa de temperatura. A sede da Crocus está localizada em Milpitas, Califórnia. Para mais informação, visite http://www.crocus-technology.com.

Para mais informações, contate:

Crocus Technology
Email: info@crocus-technology.com

May 23, 2022

LiteFinance launches new mobile app for Android

KINGSTOWN, St. Vincent & the Grenadines, May 23, 2022 /PRNewswire/ — LiteFinance informed their traders that their new Android trading app is ready, and you can download it on Google Play.

They updated the app’s engine, so it is now faster and more productive than the previous versions. This mobile trading app will be as functional as the desktop version, providing you with technical indicators and graphical analysis tools.

You can currently download both the old and the new version of LiteFinance’s mobile app on Google Play, but we advise you to install the latest one and appreciate how fast it works!

LiteFinance App Features

More than 190 trading tools
Market and pending orders
One-click trading
Six types of chart and nine timeframes
Built-in indicators
Copy-trading with pro traders
Built-in traders’ chats and analytical channels

LiteFinance clients can use all the main functions of a fully-developed trading platform in all-in-one mobile app. Top up and manage your accounts and withdraw automatically up to $3,000 a day! Trade and copy professional traders’ positions in your account. If you have any questions, just get in touch with LiteFinance support team 24/7. Chat with traders and find the latest financial news in built-in analytical channels.

Download LiteFinance’s app for Android now and exploit all the advantages of mobile trading!

Photo – https://mma.prnewswire.com/media/1822504/LiteFinance_App.jpg

May 23, 2022

WHO Chief: The Pandemic Is ‘Most Certainly Not Over’

The COVID pandemic is “most certainly not over” World Health Organization Director Tedros Adhanom Ghebreyesus said Sunday at the 75th World Health Assembly.

His warning comes as some countries are rescinding their COVID mandates, and cases are on the rise again.

“Reported cases are increasing in almost 70 countries in all regions,” Tedros said. “This virus has surprised us at every turn — a storm that has torn through communities again and again, and we still can’t predict its path, or its intensity.”

The WHO chief said that while more than 6 million global coronavirus deaths have been reported, the U.N. agency estimates that the worldwide tally is much higher at “almost 15 million deaths.”

Tedros called on countries to do all they can to eradicate COVID, including vaccinating 70% of their population, which would include 100% of people over 60 years old, 100% of health workers. and 100% of people with underlying conditions.

“The pandemic will not magically disappear,” warned the WHO leader, “but we can end it … Science has given us the upper hand.”

Meanwhile, Gallup, the global analytics firm, asks Americans every month — What is the most important problem facing the United States?

The answer has been COVID since the beginning of the pandemic. That all changed this March, however, when concerns about COVID were replaced with worries about the U.S. economy.

Gallup Senior Editor Megan Brenan said in an interview on The Gallup Podcast with Mohamed Younis that apprehension about how the U.S. government is handling the economy and inflation, now tops the list of Americans’ worries.

The Johns Hopkins Coronavirus Resource Center reported early Monday more than 525 million global COVID infections and more than 6 million global coronavirus deaths.

Source: Voice of America

May 23, 2022

Pfizer-BioNTech Says 3 COVID Shots Protect Children Under 5

Pfizer-BioNTech announced Monday that three shots of their COVID-19 vaccine provided strong protection for children under the age of 5.

“We are pleased that our formulation for the youngest children, which we carefully selected to be one-tenth of the dose strength for adults, was well tolerated and produced a strong immune response,” Pfizer CEO Albert Bourla said in a statement.

Bourla added that the companies are looking forward to “completing our submissions to regulators globally with the hope of making this vaccine available to younger children as quickly as possible, subject to regulatory authorization.”

The U.S. Food and Drug Administration is set to meet in June to decide whether to authorize the shots for children.

The FDA has already begun evaluating data from Moderna, which says its low dose, two-shot vaccine offers protection for young children.

Meanwhile, World Health Organization Director Tedros Adhanom Ghebreyesus said Sunday at the 75th World Health Assembly that the COVID pandemic is “most certainly not over.”

His warning comes as some countries are rescinding their COVID mandates, just as cases are on the rise again. “Reported cases are increasing in almost 70 countries in all regions,” Tedros said. “This virus has surprised us at every turn — a storm that has torn through communities again and again, and we still can’t predict its path, or its intensity.”

The WHO chief said that while more than 6 million global coronavirus deaths have been reported, the U.N. agency estimates the worldwide tally is much higher at “almost 15 million deaths.”

Tedros called on countries to do all they can to eradicate COVID, including vaccinating 70% of their population, which would include 100% of people over 60 years old; 100% of health workers; and 100% of people with underlying conditions.

The WHO leader warned, “The pandemic will not magically disappear. But we can end it … Science has given us the upper hand.”

The Johns Hopkins Coronavirus Resource Center reported Monday more than 525 million global COVID infections and more than 6 million global coronavirus deaths.

Source: Voice of America

May 23, 2022

A third of Malawi’s population is on the brink of extreme hunger

Responding to new IPC figures on food insecurity in Malawi, Save the Children’s Country Director in Malawi, Kim Koch, said:

“A third of Malawi’s population – 5.4 million out of 16.6 million people – is on the brink of extreme hunger according to new IPC figures, due to poverty and recurrent shocks to the food system. We know that across Africa, the climate crisis is causing more frequent and severe extreme weather events that disrupt harvests, and that the war in Ukraine is propelling the world’s existing food crises into yet further catastrophe. Sadly Malawi is not escaping the worsening hunger crisis that is blighting the region and other parts of the world.

“When families go hungry it is often children who bear the brunt, through being pulled out of school to work to support their families or falling victim to early marriage. A lack of nutrients for very young children can also lead to malnutrition that can have fatal consequences. We need urgent intervention for this hunger crisis.”

Source: Save the Children

May 23, 2022

Malawi scraps COVID-19 travel controls

MALAWI has removed coronavirus (COVID) travel restrictions.

It is a huge boost for its tourism industry as vaccinated travellers will no longer require a polymerase chain reaction (PCR) test.

Un-vaccinated travellers can now enter the country, provided they have a negative PCR test.

These changes will be effective from June 1, as announced by the Presidential Task Force on COVID-19.

Malawi Tourism confirmed the development.

The Southern African country has obtained the World Travel and Tourism Council (WTTC) Safe Travels Stamp.

It is the world’s first ever global safety and hygiene stamp for travel and tourism, designed specifically to address COVID-19.

Malawi’s tourist industry plays vital roles in the country, providing employment, generating foreign currency, supporting countless communities around the country and driving essential conservation projects.

“This move will help it fill those roles successfully once again,” Malawi Tourism stated.

“Having been deprived of visitors for two years, the warmth of the welcome that Malawi is famed for will be even stronger than ever.”

Malawi is famous as The Warm Heart of Africa.

It is lauded as a Top Country for 2022 in Lonely Planet’ Best in Travel awards.

Source: CAJ News Agency