Lakesemi Launches the Industry-First 1200V SiC Full Bridge and Rectifier Module

silicon carbide full bridge with rectifier module——LSCT30PV120B9G

silicon carbide full bridge with rectifier module——LSCT30PV120B9G

HEFEI, China, Oct. 01, 2022 (GLOBE NEWSWIRE) — Lakesemi announced that it has developed a new generation silicon carbide full bridge with rectifier module — LSCT30PV120B9G.

This new module has a very low on-resistance. In addition, it also has the characteristics of low capacitance, high-speed switching, and high switching frequency, which is helpful to improve the rapid response of equipment and energy saving. Therefore, it has a wide range of applications, such as motor drives, switching mode power supply, and UPS.

LSCT30PV120B9G is superior in silicon carbide full bridge with rectifier module. Its VDSS index reached 1200V. The model has On State Resistance of 88mΩ and a Total Gate Charge of 347nc. Thermal engineers might get benefit from its ultra-low transient thermal impedance of 0.28°C/W at 1ms for thermal shock.

Regarding the rectifier, its Repetitive Peak Reverse Voltage reaches 1800V, the Maximum RMS Forward Current is 50A, and Surge Current (@tp=10 ms) is 315A. The rectifier can maintain good stability in complex working environments.

This module’s operating temperature range (Ta) is -40 °C to +125 °C, ensuring the use in industry and harsh thermal environments. Meantime, it uses advanced packaging technology, its size just 62.8 mm ×56.7 mm × 16.5 mm, allowing it to be used where space is tight.

The LSCT30PV120B9G has officially gone on sale. For more information, please visit:
http://www.lakesemi.com/index.php?case=archive&act=show&aid=572

Lakesemi, a Hefei, China-based startup company, focuses on power semiconductors. Lakesemi is a pioneer of wide-bandgap semiconductor products, such as GaN or SiC-based MOSFET. It is also providing silicon-based shielded gate transistors, IGBTs, IGBT modules, IPM, etc.

Contact Information:
Rentai Xiao
General Office Director,Lakesemi
xiaort@lakesemi.com
(+86)15874257525

Hongwei Zhang
Deputy General Manager,Lakesemi
zhanghw@lakesemi.com
(+86)13901948268

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Image 1: silicon carbide full bridge with rectifier module——LSCT30PV120B9G

The industry-first 1200V SiC Full Bridge and Rectifier Module

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Audience Wowed as World Famous Passion Play Comes to a Close

The nearly 400-year-old-year Passion play performed by the people of the German alpine village of Oberammergau comes to a close after a nearly five-month run, with viewers saying this year was especially meaningful as the play was delayed by two years by the COVID-19 pandemic. Villagers kept their vow to perform the play every 10 years, made in 1633 to avert the ravages of the plague.
Oberammergau native Christian Stückl has directed the Passion Play for more than 30 years, several times reworking the 100-year-old script, modernizing it, and removing antisemitic references.
“As a spectator you don’t really have to bring anything [in terms of religious understanding], you can just turn up,” Stückl said of the audience that comes from around the world to see the famous production.
“But as a director, if I didn’t have the belief and conviction that there is a certain power behind this story, behind this Jesus, I wouldn’t be able to tell this story,” Stückl said.
Ruth Aspinall traveled from Britain to see the Passion play and said she really liked this year’s production, finding it meaningful in several ways.
“Well, it’s my fifth time of coming and I don’t mean fifth in one year. So, that it explains it all, I would think. Very much so, it’s much simpler. I loved the Resurrection. It’s never been used before. It was just sort of hinted at before. But this time, all the disciples come on and lit candles. Mary was happy. Then everybody sang hallelujah. It ended much more joyful,” said Aspinall.
The play’s deputy director, Abdullah Kenan Karaca, also plays the priest, Nicodemas. Karaca is the son of Turkish immigrants and grew up in Oberammergau, a predominately Catholic village. But the village, too, is becoming reflective of Germany’s increased diversity, taking in refugees from Syria, Afghanistan, Nigeria and Ukraine. This is the first time the play has included a leading Muslim actor, Cengiz Gorur. Karaca, a professional theater director, says his first theater experience was performing in the Passion play as a child.
“The motivation why people are in the play is totally different. Some people, because of their faith, they want to fulfill the vow, other ones they just fascinated by the big production we have. Everyone is trying their best and do it really with their heart. This is really beautiful that the Passion play, the story of Jesus, can bring a lot of people together,” he said.
For Oberammergau native Frederik Mayet, one of two actors who plays Jesus, conveying Jesus’ message of love and hope to the audience is important.
“You always have to find the words that reach the people of today. We notice now in this Passion play year, the people are really touched. The power, joy, and enthusiasm we have on stage reaches the people in the auditorium automatically and that’s something special. When the choir is singing, when there are hundreds of persons on stage, sometimes it’s a magical moment,” he said.
Mayet portrayed Jesus for a second time and comes from a family with a long history of participating in the Passion play, starting in 1890. His children, 3 and 8, have also been on stage this year.

Source: Voice of America

Nobel Prize Season Arrives Amid War, Nuclear Fears, Hunger

This year’s Nobel Prize season approaches as Russia’s invasion of Ukraine has shattered decades of almost uninterrupted peace in Europe and raised the risks of a nuclear disaster.
The secretive Nobel committees never hint who will win the prizes in medicine, physics, chemistry, literature, economics or peace. It’s anyone’s guess who might win the awards being announced starting Monday.
Yet there’s no lack of urgent causes deserving the attention that comes with winning the world’s most prestigious prize: Wars in Ukraine and Ethiopia, disruptions to supplies of energy and food, rising inequality, the climate crisis, the ongoing fallout from the COVID-19 pandemic.
The science prizes reward complex achievements beyond the understanding of most. But the recipients of the prizes in peace and literature are often known by a global audience and the choices — or perceived omissions — have sometimes stirred emotional reactions.
Members of the European Parliament have called for Ukrainian President Volodymyr Zelenskyy and the people of Ukraine to be recognized this year by the Nobel Peace Prize committee for their resistance to the Russian invasion.
While that desire is understandable, that choice is unlikely because the Nobel committee has a history of honoring figures who end conflicts, not wartime leaders, said Dan Smith, director of the Stockholm International Peace Research Institute.
Smith believes more likely peace prize candidates would be groups or individuals fighting climate change or the International Atomic Energy Agency, a past recipient.
Honoring the IAEA again would recognize its efforts to prevent a radioactive catastrophe at the Russian-occupied Zaporizhzhia atomic power plant at the heart of fighting in Ukraine, and its work in fighting nuclear proliferation, Smith said.
“This is really difficult period in world history and there is not a lot of peace being made,” he said.
Promoting peace isn’t always rewarded with a Nobel. India’s Mohandas Gandhi, a prominent symbol of non-violence in the 20th century, was never so honored.
But former President Barack Obama was in 2009, sparking criticism from those who said he had not been president long enough to have an impact worthy of the Nobel.
In some cases, the winners have not lived out the values enshrined in the peace prize.
Just this week the Vatican acknowledged imposing disciplinary sanctions on Nobel Peace Prize-winning Bishop Carlos Ximenes Belo following allegations he sexually abused boys in East Timor in the 1990s.

Ethiopian Prime Minister Abiy Ahmed won in 2019 for making peace with neighboring Eritrea. A year later a largely ethnic conflict erupted in the country’s Tigray region. Some accuse Abiy of stoking the tensions, which have resulted in widespread atrocities. Critics have called for his Nobel to be revoked and the Nobel committee has issued a rare admonition to him.
The Myanmar activist Aung San Suu Kyi won the peace prize in 1991 while being under house arrest for her opposition to military rule. Decades later, she was seen as failing in a leadership role to stop atrocities committed by the military against the country’s mostly Muslim Rohingya minority.

The Nobel committee has sometimes not awarded a peace prize at all. It paused them during World War I, except to honor the International Committee of the Red Cross in 1917. It didn’t hand out any from 1939 to 1943 due to World War II. In 1948, the year Gandhi died, the Norwegian Nobel Committee made no award, citing a lack of a suitable living candidate.
The peace prize also does not always confer protection.
Last year journalists Maria Ressa of the Philippines and Dmitry Muratov of Russia were awarded “for their courageous fight for freedom of expression” in the face of authoritarian governments.
Following the invasion of Ukraine, the Kremlin has cracked down even harder on independent media, including Muratov’s Novaya Gazeta, Russia’s most renowned independent newspaper. Muratov himself was attacked on a Russian train by an assailant who poured red paint over him, injuring his eyes.
The Philippines government this year ordered the shutdown of Ressa’s news organization, Rappler.
The literature prize, meanwhile, has been notoriously unpredictable.
Few had bet on last year’s winner, Zanzibar-born, U.K.-based writer Abdulrazak Gurnah, whose books explore the personal and societal impacts of colonialism and migration.
Gurnah was only the sixth Nobel literature laureate born in Africa, and the prize has long faced criticism that it is too focused on European and North American writers. It is also male-dominated, with just 16 women among its 118 laureates.
The list of possible winners includes literary giants from around the world: Kenyan writer Ngugi Wa Thiong’o, Japan’s Haruki Murakami, Norway’s Jon Fosse, Antigua-born Jamaica Kincaid and France’s Annie Ernaux.
A clear contender is Salman Rushdie, the India-born writer and free-speech advocate who spent years in hiding after Iran’s clerical rulers called for his death over his 1988 novel “The Satanic Verses.” Rushdie, 75, was stabbed and seriously injured at a festival in New York state on Aug. 12.
The prizes to Gurnah in 2021 and U.S. poet Louise Glück in 2020 have helped the literature prize move on from years of controversy and scandal.
In 2018, the award was postponed after sex abuse allegations rocked the Swedish Academy, which names the Nobel literature committee, and sparked an exodus of members. The academy revamped itself but faced more criticism for giving the 2019 literature award to Austria’s Peter Handke, who has been called an apologist for Serbian war crimes.
Some scientists hope the award for physiology or medicine honors colleagues instrumental in the development of the mRNA technology that went into COVID-19 vaccines, which saved millions of lives across the world.
“When we think of Nobel prizes, we think of things that are paradigm shifting, and in a way I see mRNA vaccines and their success with COVID-19 as a turning point for us,” said Deborah Fuller, a microbiology professor at the University of Washington.
The Nobel Prize announcements this year kick off Monday with the prize in physiology or medicine, followed by physics on Tuesday, chemistry on Wednesday and literature Thursday. The 2022 Nobel Peace Prize will be announced on Oct. 7 and the economics award on Oct. 10.
The prizes carry a cash award of 10 million Swedish kronor ($880,000) and will be handed out on Dec. 10.

Source: Voice of America

Hurricane Ian Dumped 10% More Rain Due to Climate Change: Research

Climate change increased the rainfall from Hurricane Ian by more than 10 percent, according to a new quick-fire analysis, as one of the most powerful storms ever to hit the United States devastated parts of Florida.
Ian “could be the deadliest hurricane in Florida history,” President Joe Biden said after the storm brought ferocious winds, turned streets into churning rivers that swept away homes and left an unknown number of casualties.
According to a rapid and preliminary analysis, human-caused climate change increased the extreme rain that Ian unleashed by over 10 percent, U.S. scientists said.

“Climate change didn’t cause the storm but it did cause it to be wetter,” said Lawrence Berkeley National Laboratory’s Michael Wehner, one of the scientists behind the new finding.
The researchers compared simulations of today’s world — which has warmed nearly 1.2 degrees Celsius since pre-industrial times — with counterfactual simulations of a world without human-induced climate change.
Wehner said these were “conservative estimates,” adding that while they are not peer reviewed, they are based on methods used in a study on the 2020 Atlantic hurricane season, which was published in April in the journal Nature Communication.
Climate change from emissions of planet-heating greenhouse gases is warming the ocean’s surface and increasing moisture in the atmosphere that fuels hurricanes.

Although the total number of tropical storms, or cyclones, may not increase, scientists say warming is whipping up more powerful cyclones with stronger winds and more precipitation.
“Human-caused climate change is affecting hurricanes in many ways including causing them to intensify faster, be stronger overall, and dump a lot more rain,” tweeted climate scientist Katharine Hayhoe, who was not involved in the research.
For each degree Celsius of warming, scientists expect the water in the atmosphere to increase by around seven percent.
But Wehner said that his research found that storms are “more efficient” at turning the available moisture into rainfall.
Ian swept across Cuba Tuesday, downing the country’s power network, before slamming into the Florida coast Wednesday as a strong Category 4 hurricane.
The National Hurricane Center said Thursday the then-Category 1 storm was expected to bring “life-threatening flooding, storm surge and strong winds” to the Carolinas.

Source: Voice of America