Crocus Technology Expande Portfólio de Sensores de Corrente Isolados de Alta Precisão em Faixas de Temperatura Industrial e Automotiva

A família CT425 de produtos XtremeSense® TMR oferece detecção de corrente isolada de alta precisão com Rejeição de Campo de Modo Comum com largura de banda de 1 MHz

SANTA CLARA, Califórnia, Oct. 26, 2021 (GLOBE NEWSWIRE) — A Crocus Technology Inc., principal fornecedora de sensores disruptivos XtremeSense ® de Magnetorresistência de Túnel, divulgou hoje o lançamento dos sensores de corrente isolada CT425, CT426, CT427 e CT428 com <1% de erro total em toda a faixa de temperatura de operação sem sacrifício da precisão ou da largura de banda. A operação de alta velocidade e a saída precisa permitem que os clientes otimizem o design de um sistema menor e mais eficiente.

O CT42x com menos de 300 ns de tempo de resposta simplifica muito a solução em aplicações de carregamento EV que utilizam os transistores GaN (nitreto de gálio) ou SiC (carboneto de silício) para aprimorar a densidade da potência. Por outro lado, o CT42x oferece melhorias em termos de desempenho e tamanho em comparação com as soluções clássicas de detecção de corrente isolada que utilizam um resistor de derivação, amplificador e isolador digital para detectar a tensão e converter esse sinal em uma medição de corrente. O CT42x detecta diretamente o fluxo de corrente do pacote, evitando erros na conversão, e fornece medições inerentemente mais rápidas e precisas. Com o tempo de resposta líder do setor de 300 ns, as arquiteturas de alta potência como CCM Totem-Pole PFC podem fornecer soluções de maior densidade de potência. A frequência de comutação rápida dos dispositivos de energia Wide Bandgap (WBG) requer um sensor de corrente que pode detectar transientes rápidos para evitar possíveis falhas em cascata. A integração em um pacote SOIC-8 que economiza espaço também reduz o tamanho total da pegada do PCB em até 8 vezes, em comparação com as soluções existentes.

O CT42x tem imunidade integrada robusta aos campos de modo comum, permitindo que o dispositivo rejeite mais de 99% dos campos magnéticos externos dispersos sem exigir blindagem externa, mantendo a precisão total em <1%. A tecnologia TMR proprietária da Crocus oferece relação sinal:ruído (signal-to-noise ratio – SNR) inerente muito alta que proporciona medições de resolução mais alta em aplicações de controle ou monitoramento de precisão.

“A expansão desta família de produtos oferece mais opções para que os nossos clientes possam alcançar o desempenho de alta precisão dos nossos produtos XtremeSense TMR em aplicações mais exigentes”, disse Zack Deiri, Presidente e CEO da Crocus Technology. “Antes disso, nossos clientes selecionavam produtos que ofereciam um bom desempenho em um parâmetro acima da temperatura e, em seguida, ajustavam o design para compensar os outros parâmetros. Com os produtos Crocus, os clientes podem alcançar alta precisão e alta largura de banda, por meio de uma solução abrangente de alto desempenho.”

Características e desempenho do produto:

CT425 e CT428 (Versão 5.0 V), CT426 e CT427 (Versão 3.3 V)

Condutor integrado de 0,5mΩ para aplicações de CC de 20A e 65A

Total de erro da saída ±0,5% FS (típica)

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

Tensão Nominal do Isolamento: >4 kVRMS

Certificados AEC-Q100 e UL/IEC 62368, e Certificados IEC 61000-4-5

Detecção de sobrecorrente (CT427 e CT428), filtro aprimorado (CT425 e CT426)

Rejeição de Campo de Modo Comum Integrado (Integrated Common Mode Field Rejection – CMFR) com > 99% de imunidade

Foco em aplicações de Conexão de Fator de Energia (Power-Factor Correction – PFC), Inversores de Energia Solar, Sistemas de Gerenciamento de Baterias (Battery Management Systems – BMS), Carregadores xEV, Conversores e Inversores AC/CC.

Os sensores CT425, CT426, CT427 e CT428 estão disponíveis em um pacote SOIC-8 padrão da indústria. Amostras e placas de avaliação estão disponíveis no momento. Para mais informação sobre os produtos da família CT42x, visite a página do produto em:

https://crocus-technology.com/products/ct42x/

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 traz avanços significativos para IoT e dispositivos inteligentes, aplicações eletrônicas industriais, de consumo, médicas e automotivas que exigem alta precisão, alta resolução, desempenho de temperatura estável e baixo consumo de energia. A Crocus está localizada em Santa Clara, Califórnia. Para mais informação, visite http://www.crocus-technology.com.

© 2021 Crocus Technology International Corp. Todos os direitos reservados. Crocus Technology, XtremeSense® e suas combinações são marcas comerciais da Crocus Technology Inc. e Crocus Technology SA. Outros nomes são apenas para fins informativos e podem ser marcas comerciais de seus respectivos proprietários.

Para mais informações, contate:

Elsa Magnani
Crocus Technology
Tel: +1-208-999-6643
Email: emagnani@crocus-technology.com

Crocus Technology étend son portefeuille de capteurs de courant isolé de haute précision sur les plages de température industrielles et automobiles

La famille de produits TMR XtremeSense® CT425 offre une détection de courant isolé de haute précision avec rejet du champ en mode commun à une bande passante de 1 MHz

SANTA CLARA, Californie, 26 oct. 2021 (GLOBE NEWSWIRE) — Crocus Technology Inc., le premier fournisseur de capteurs révolutionnaires de magnétorésistance à effet tunnel XtremeSense®, annonce aujourd’hui les capteurs de courant isolé CT425, CT426, CT427 et CT428 avec une erreur totale <1 % sur la plage complète de températures de fonctionnement sans sacrifier la précision ou la bande passante. Le fonctionnement à haute vitesse et la sortie précise permettent aux clients d’optimiser la conception de leur système pour des dimensions plus petites et une plus grande efficacité.

La famille CT42x avec un temps de réponse inférieur à 300 ns simplifie considérablement la solution dans les applications de rechargement de VE qui utilisent des transistors en GaN (nitrure de gallium) ou SiC (carbure de silicium) pour améliorer la densité énergétique. De même, la famille CT42x offre des améliorations en termes de performance et de taille par rapport aux solutions traditionnelles de détection de courant isolé qui utilisent une résistance shunt, un amplificateur et un isolateur numérique pour détecter la tension et convertir ce signal en une mesure de courant. La famille CT42x détecte directement le flux de courant à travers le boîtier en évitant les erreurs de conversion et fournit des mesures intrinsèquement plus rapides et plus précises. Avec un temps de réponse de pointe de 300 ns, les architectures à haute puissance telles que la CCM Totem-Pole PFC peuvent fournir des solutions à densité énergétique plus élevée. La fréquence de commutation rapide des appareils énergétiques à large structure de bande (WBG) nécessite un capteur de courant capable de détecter les transitoires rapides pour éviter de potentielles défaillances en cascade. L’intégration dans un boîtier SOIC-8 compact divise également par 8 l’empreinte PCB totale par rapport aux solutions existantes.

La famille CT42x dispose d’une solide immunité intégrée aux champs en mode commun qui permet au dispositif de rejeter plus de 99 % des champs magnétiques externes parasites sans avoir besoin de blindage externe tout en maintenant une précision totale inférieure à 1 %. La technologie TMR brevetée de Crocus offre par défaut un très haut rapport signal sur bruit (SNR) qui permet les mesures à haute résolution requises pour le contrôle de précision ou les applications de surveillance.

« L’expansion de cette famille de produits apporte davantage d’options à nos clients pour expérimenter les performances de haute précision de nos produits TMR XtremeSense dans des applications plus exigeantes », a déclaré Zack Deiri, président-directeur général de Crocus Technology. « Auparavant, nos clients choisissaient des produits qui leur offraient de bonnes performances sur un paramètre par rapport à la température, puis ils ajustaient leur conception pour compenser les autres paramètres. Avec les produits Crocus, ils constatent qu’ils peuvent obtenir une haute précision et une bande passante élevée grâce à une solution haute performance complète. »

Caractéristiques et performances des produits :

CT425 et CT428 (version de 5,0 V), CT426 et CT427 (version de 3,3 V)

Conducteur de 0,5 mΩ intégré permettant des applications de 20 A à 65 A CA et CC

Erreur de sortie totale ±0,5 % FS (typ.)

Temps de réponse 300 ns, bande passante 1 MHz

Tension d’isolation nominale : >4 kVRMS

Certifications AEC-Q100 & UL/CEI 62368, CEI 61000-4-5

Détection de surintensité (CT427 et CT428), filtre amélioré (CT425 et CT426)

Rejet du champ en mode commun (CMFR) intégré avec plus de 99 % d’immunité

Les applications ciblées se situent dans les domaines de la correction de facteur de puissance (PFC), des onduleurs électriques solaires, des systèmes de gestion de batterie (BMS), des chargeurs xEV, des convertisseurs CC/CC et des onduleurs CA/CC.

Les capteurs CT425, CT426, CT427 et CT428 sont disponibles en boîtier SOIC-8 standard. Des échantillons et des tableaux d’évaluation sont actuellement disponibles. Pour tout complément d’information sur la famille de produits CT42x, veuillez consulter la page Web des produits :

https://crocus-technology.com/products/ct42x/

À propos de Crocus Technology

Crocus Technology développe et fabrique des capteurs magnétiques de pointe basés sur sa technologie brevetée de capteurs TMR XtremeSense™. La technologie révolutionnaire de capteurs magnétiques développée par Crocus apporte des avancées significatives à l’IdO ainsi qu’aux appareils intelligents, aux applications industrielles, grand public, médicales et automobiles électroniques qui demandent une haute précision, une haute résolution, des performances de température stables et une faible consommation d’énergie. Le siège social de Crocus se trouve à Santa Clara, en Californie. Pour tout complément d’information, veuillez consulter le site http://www.crocus-technology.com.

© 2021 Crocus Technology International Corp. Tous droits réservés. Crocus Technology, XtremeSense et ses combinaisons sont des marques déposées de Crocus Technology Inc. et Crocus Technology SA. Les autres noms sont donnés à titre d’information uniquement et peuvent être des marques commerciales de leurs propriétaires respectifs.

Pour tout complément d’information, veuillez contacter :

Elsa Magnani
Crocus Technology
Tél. : +1-208-999-6643
E-mail : emagnani@crocus-technology.com

Coopération avec le gouvernement | GAC MOTOR pour les véhicules de transport public au Nigeria

GUANGZHOU, Chine, 25 octobre 2021 /PRNewswire/ — Après une récente réunion réussie entre le gouverneur de Guangdong et le gouverneur de l’État de Lagos, M. Babajid Sanwo-Olu, de multiples formes de coopération ont été convenues. Le 11 octobre, les modèles 750 GAC MOTOR GS3 et 250 GA4 ont été expédiés de Qingdao, en Chine, à Lagos, au Nigeria, pour être utilisés par le gouvernement de l’État de Lagos comme véhicules pour le projet de voyage public « LAGOS RIDE ».

The signing ceremony between the Lagos state government and GAC MOTOR

Nigeria-Guangdong, un partenariat solide

Ces dernières années, le gouvernement nigérian a augmenté son soutien à l’industrie automobile et fait confiance dans le développement des marques chinoises au Nigeria. GAC MOTOR a saisi cette opportunité et s’est associé à CIG Motors, un concessionnaire automobile local, pour introduire au Nigeria les modèles les plus vendus, notamment les GS3, GS4, GS8, GN8 et GA4, qui ont suscité un vif intérêt sur le marché local. La mise en œuvre de ce projet est une autre réalisation majeure pour GAC MOTOR, qui travaille avec des concessionnaires étrangers pour promouvoir le développement régulier du marché africain.

Afin d’améliorer la circulation locale et d’élever le niveau de vie des habitants, le gouvernement de l’État de Lagos a officiellement lancé « LAGOS RIDE ». Le projet de transport public fournira des services de covoiturage aux habitants de la région. Le SUV GS3 et la berline GA4 de GA  MOTOR ont été appréciés par le gouvernement pour leur excellente qualité, leur confort, leur apparence et leurs performances. Ces deux modèles ont été sélectionnés comme les modèles finaux à utiliser dans le projet.

Babajid Sanwo-Olu, gouverneur de l’État de Lagos, et son parti ont effectué une visite spéciale à Guangdong en novembre 2019, proposant de renforcer la coopération économique et commerciale entre les entreprises nigérianes et celles de Guangdong. Avant ce projet, GAC MOTOR avait promu avec succès plusieurs grands projets locaux au Nigeria, notamment la construction d’une usine d’assemblage de voitures GAC MOTOR et la sélection de véhicules GAC MOTOR comme voitures officielles des diplomates chinois dans la région. Grâce à la force de sa marque et de ses produits, GAC MOTOR a gagné la reconnaissance et la confiance du gouvernement, et est devenu une sorte de « carte de visite » pour la fabrication chinoise intelligente au Nigeria. La marque incarne l’esprit de l’artisanat chinois ; le Nigeria n’est qu’un des endroits où ce concept est présenté au monde.

Alors que le monde entre dans une nouvelle ère de construction automobile mondiale, GAC MOTOR Nigeria se réjouit de cultiver en profondeur cette précieuse région et de travailler ensemble pour apporter la prospérité à l’économie locale et une meilleure vie mobile au peuple nigérian.

Photo – https://mma.prnewswire.com/media/1668360/GAC_MOTOR_LAGOS_RIDE.jpg

Top General Says Takeover in Sudan Was to Avoid Civil War

Sudanese military chief General Abdel-Fattah Burhan said Tuesday the army’s overthrow of the country’s transitional government was necessary to avoid a civil war.

“The whole country was deadlocked due to political rivalries,” Burhan said at a televised news conference in Khartoum. “The experience during the past two years has proven that the participation of political forces in the transitional period is flawed and stirs up strife.”

Deposed Prime Minister Abdalla Hamdok and his wife, who had been detained Monday, were allowed to return to their home late Tuesday but were “under close surveillance,” a statement issued by his office reported.

Burhan also acknowledged that “we arrested ministers and politicians, but not all” and said that some would face trial for allegedly inciting a rebellion within the county’s military.

The U.N. Security Council met privately Tuesday to discuss the situation. The United States, along with council members Britain, Estonia, France, Ireland and Norway, called for the session. U.N. Special Representative for Sudan Volker Perthes briefed them from Khartoum.

Before the meeting, several council members reiterated their government’s condemnation of the coup and the need for an end to violence against protesters.

“Two years ago, the people of Sudan put their lives on the line for democracy, and they should not have to do so again,” British Ambassador Barbara Woodward told reporters.

Military chief Burhan declared a national emergency Monday and announced the end of the joint civilian-military Sovereign Council that had run the country since August 2019, shortly after the ouster of longtime autocrat President Omar al-Bashir.

He pledged the military would turn power over to a civilian government in July 2023 after general elections are held.

Demonstrators remained in the streets of Sudan’s capital, Khartoum, to protest the arrest of Hamdok and other officials of the Sovereign Council.

The Sudan Doctors Committee said at least four people were killed and 80 injured Monday when security forces opened fire on demonstrators.

Despite the violence, protesters were on the streets of Khartoum again Tuesday, condemning the coup and shouting “no to military rule.”

The U.S. Embassy in Sudan has warned Americans in the country to shelter in place.

U.N. Secretary-General Antonio Guterres, the African Union and the Arab League were among those alarmed and dismayed Monday at the latest events in Sudan, and they called for the country to stay on a path toward civilian rule.

Guterres also expressed concern about the growing number of coups worldwide. “We are seeing a multiplication of coup d’états” that are the result of “strong geopolitical divides,” he said.

There have been coups this year in Myanmar and in the African nations of Niger, Chad, Mali and Guinea.

He told reporters Tuesday that the Security Council’s “difficulties” in taking strong measures have created an atmosphere in which some military leaders feel they can act with “total impunity.”

“My appeal, obviously, is for — especially the big powers — to come together for the unity of the Security Council in order to make sure that there is effective deterrence in relation to this epidemic of coup d’états,” Guterres said.

The White House said it was “alarmed” by the developments, while the U.S. State Department said it was suspending $700 million in financial assistance to the country.

A joint statement issued by the United States, Britain and Norway through the State Department condemned the coup and called on Sudanese security forces to immediately release all people “unlawfully detained.”

“The actions of the military represent a betrayal of the revolution, the transition, and the legitimate requests of the Sudanese people for peace, justice and economic development,” the statement read.

In a statement Tuesday, Sudan’s ambassador to the U.S., Nureldin Satti, condemned the coup “that has put an end to the civilian democratic transition in Sudan.”

“I am heartened to see that my colleagues in Brussels, Paris and Geneva, and New York have followed suit and condemned the military coup,” Satti added. “We shall work with other colleagues in the diplomatic service and in the diaspora to resist the military coup in support of the heroic struggle of the Sudanese people to achieve the objectives of the December 19, 2018, revolution.”

Hamdok, an economist and diplomat who has worked for the U.N., was named the country’s transitional prime minister in August 2019. The transition received strong support from Western countries, including the United States, which removed Sudan from its state sponsors of terrorism list.

But Hamdok faced stiff resistance from elements of Sudan’s military. On September 21, forces still loyal to al-Bashir used tanks to block a key bridge and attempted to seize power. The coup was put down, and dozens of soldiers were arrested.

Thousands took to the streets last week to protest the prospect of a return to military rule.

“This country is ours, and our government is civilian,” protesters chanted.

Source: Voice of America

US to Review Support for Elite Somali Military Unit

The United States says it will review its support for an elite unit of the Somali National Army following its participation in a battle against a former ally in the fight against al-Shabab extremists.

An official at the U.S. embassy in Mogadishu spoke to VOA’s Somali service following reports that U.S.-trained elite Somali forces known as Danab, or “lightning,” took part in this week’s fighting in the central Somali town of Guriel.

The fighting pits government troops and Galmudug regional forces against the militias of Ahlu Sunna Wal Jama’a (ASWJ). The moderate Islamist group is a rival to al-Shabab, which the United States considers the major militant threat in the region.

A Danab commander, Major Abdilatif Ahmed Ali Fayfle, was among those killed in the fighting.

The U.S. official in Mogadishu, speaking on condition of anonymity, said the embassy is aware of the reports that Danab forces were involved in the fighting and of the death of the Danab commander.

The official said the support would be reviewed as a result of that involvement.

“The United States provides training and support coordination to Somali National Army Danab Brigade units to advance our shared objective of defeating al-Shabab,” said the official. “As a result of this incident, we will be reviewing the support we provide to ensure it is being used appropriately and consistent with U.S. policy and objectives.”

VOA Somali tried unsuccessfully to contact the commander of Somali national forces, General Odawaa Yusuf Rageh, who was in the Guriel area this week.

The fighting in Guriel, which started on Saturday, has claimed the lives of dozens of people, injured scores of others, and displaced about 100,000 Somalis, according to local officials and health workers.

ASWJ militias were ousted from the area in early 2020 following the formation of a new administration for Galmudug state. The group’s leaders fled the area at the time.

Earlier this month, the group suddenly remerged ahead of planned parliamentary elections, sparking the current armed conflict against the federal government and Galmudug forces.

The official said the U.S. extends condolences to the families and loved ones of all those affected.

“We call on all sides to cease military operations and engage in political dialogue towards peaceful resolution,” said the official.

The U.S. has been training and providing support to Danab since 2013. Danab, which is currently about 1,400 military personnel, has bases in southern and central Somalia. In addition to training the Danab soldiers, the U.S. has been carrying out airstrikes against al-Shabab militants in support of the Somali government.

Source: Voice of America

UN: More Than 100,000 Somalis Displaced by Fighting in Central Galmudug Region

United Nations officials say more than 100,000 people are displaced in central Somalia following days of fighting between the government forces and a group opposing the region’s local administration.

The clashes that began last week in Gurieel town in Somalia’s Galmudug federal state are reported to have killed at least 120 people, most of them soldiers or fighters.

The fighting is between government forces and their former ally, Islamist group Ahlu Sunnah Wal Jama’a. Gurieel is the second largest town in Galmudug state and both sides want control of the town ahead of parliamentary elections.

Speaking at a virtual conference Tuesday, James Swan, the U.N. representative in Somalia, called for an end to the fighting.

“We are concerned that this is a distraction from other critical priorities, namely the completion of the electoral process and a continuation of the fight against al-Shabab,” Swan said. “As a consequence, we would certainly welcome efforts by the parties to this conflict to pause on the ongoing hostilities and explore opportunities for talks or dialogue that might allow for peaceful resolution of the situation without further suffering of the people.”

Mohamed Ayoya, UNICEF’s country representative in Somalia, says the aid agencies are struggling to provide humanitarian assistance to the population in the area.

“Our assessment so far has shown that 20,000 households have been displaced and that’s more than 100,000 people,” he said. “The problem is that getting access to people with the service we can offer at the time is extremely complicated and difficult. So as we speak, we on the ground, we have partners trying to provide the services in terms of water and sanitation, hygiene but also food.”

The aid agencies said health centers have been damaged in the conflict, reducing people’s ability to access health care.

The U.N. also said a local humanitarian organization was targeted while doing their work, and one of its workers was killed.

The U.N. Office for the Coordination of Humanitarian Affairs said 7.7 million Somalis will be in need of assistance in 2022, as conflict, unpredictable weather patterns and diseases continue to disrupt people’s lives.

Delayed elections

In recent months, Somalia has been locked in political crisis due to delays in elections, caused by threats from al-Shabab militants and disagreements over the process.

Swan says the postponements contribute to the overall state of distress in the country.

“These delayed elections are occupying such a central place in the attention of the leadership of the country at this time that, unfortunately, it is causing other critical priorities to be deferred,” he said. “We can look across the board at the development agenda, additional work to be done in the security sector. We can look at longer-term state-building priorities around the constitution, around establishing the rule of law institutions, judicial institutions.”

In hopes of ending the Galmudug conflict, Somali opposition groups have urged the government to stop sending reinforcement troops to the town.

Source: Voice of America