Power Integrations 的 1700 V 切換開關 IC 為 800 V 純電動車提供可靠性和節省空間的優勢

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Power Integrations 的 1700 V 切換開關 IC 為 800 V 純電動車提供可靠性和節省空間的優勢

2025-05-06 14:59 Last Updated At：15:21

德國紐倫堡--(BUSINESS WIRE)--五月 6, 2025--

(美國商業資訊)-- PCIM 2025 – Power Integrations (NASDAQ： POWI ) 這家節能功率轉換之高壓積體電路領域的領導廠商今日宣布推出五款採用該公司 1700 V InnoSwitch™3-AQ 返馳式切換開關 IC 的全新參考設計，專門針對 800 V 汽車應用。這些設計涵蓋從 16 W 到 120 W 的功率等級，運用繞線變壓器和薄型平面變壓器，並以汽車應用為目標，例如 DC-DC 匯流排轉換、變頻器緊急電源、電池管理和輔助系統電源。這五款設計採用了 Power Integrations 的新型寬沿面距離 InSOP™-28G 封裝，該封裝在一次側支援 1000 VDC，同時在 2 級污染程度環境中提供接腳之間的適當沿面距離和間隙。

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Power Integrations 產品行銷工程師 Mike Stroka 表示：「新型 InSOP™-28G 封裝具有 5.1 mm 的寬汲源極間的接腳安規距離，滿足了高壓應用中對增強安全性和可靠性的關鍵需求。」「它提供足夠的絕緣，無需使用保形塗層，進而節省了製造程序步驟和相關的認證工作。InnoSwitch3-AQ IC 採用 1700 V 碳化矽 (SiC) 切換開關，是 800 V 汽車的理想解決方案，可簡化製造流程，同時提高整體系統效能和可靠性。」

以下參考設計均可從 www.power.com 取得，它們都是採用 1700 V 額定 CV/CC InnoSwitch3-AQ 切換開關 IC 的隔離返馳式轉換器。三款參考設計套裝 (RDK) 和兩款設計範例 (DER) 分別是：

Power Integrations 額定電壓為 1700 V、採用碳化矽 SiC 的 CV/CC InnoSwitch3-AQ 切換開關電源 IC 可提供高達 120 瓦的輸出功率。高度整合的 IC 可將電源供應器物料清單 (BOM) 數量減少多達 50%，進而節省空間、提高系統可靠性並減輕零件採購挑戰。裝置啟動時汲極接腳上的電壓僅為 30 伏特，無需外部電路，這通常是功能安全性的關鍵要求。其他保護功能包括輸入欠壓、輸出過壓和過電流限制。無負載時功耗小於 15 mW。該 IC 還採用了同步整流和谷值切換、不連續/連續導通模式 (DCM/CCM) 返馳式控制器，可提供超過 91% 的效率。

可用性和資源

全新 1700 V 額定電壓 InnoSwitch3-AQ 切換開關電源 IC 的起步價為每件 6 美元，每次訂購數量為 10,000 件。每套參考配套設計的價格範圍為 50 至 100 美元。設計工程師可以在 pages.power.com/rev-up 上提交圖面，有機會贏得其中一種參考配套設計。如需更多資訊，請聯絡 Power Integrations 業務人員或公司授權的全球經銷商之一： DigiKey 、 Newark 、 Mouser 和 RS Components ，或瀏覽 power.com 。

關於 Power Integrations

Power Integrations, Inc. 是高壓功率轉換專用半導體技術的領導創新廠商。該公司的產品在綠色能源生態系統中起著關鍵作用，不僅能夠利用可再生能源發電，還能在從毫瓦到兆瓦等各種應用中實現高效的功率傳輸及消耗。如需詳細資訊，請參考 www.power.com 。

Power Integrations、Power Integrations 標誌、InnoSwitch、PowiGaN 和 FluxLink 為 Power Integrations, Inc. 的商標、服務標記或註冊商標。所有其他商標為其個別所有者之財產。

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CONTACT: 媒體聯絡人

唐琦

Power Integrations

+8675586728693

annie.tang@power.com

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SOURCE: Power Integrations, Inc.

PUB: 05/06/2025 03:00 AM/DISC: 05/06/2025 02:59 AM

http://www.businesswire.com/news/home/20250506160325/zh

Police search Brown University after shooter kills 2 and wounds 9 on campus

PROVIDENCE, R.I. (AP) — A shooter dressed in black killed at least two people and wounded nine others at Brown University on Saturday during final exams on the Ivy League campus, authorities said, and police were searching for the suspect.

University President Christina Paxson said she was told that 10 people who were shot were students. Another person was injured by fragments from the shooting, but it was not clear if that victim was a student, she said.

Officers scattered across the campus and into an affluent neighborhood filled with historic and stately brick homes, searching academic buildings, backyards and porches late into the night after the shooting erupted in the afternoon.

The suspect was a man in dark clothing who was last seen leaving the engineering building where the attack happened, said Timothy O’Hara, deputy chief of Providence police.

Security footage showed the suspect walking away from the building, but his face was not visible. Some witnesses reported that the man, who could be in his 30s, may have been wearing a camouflage mask, O’Hara said.

Investigators were not yet sure how the shooter got inside the first-floor classroom where he opened fire. Outer doors of the building were unlocked, but rooms being used for final exams required badge access, Providence’s mayor said.

Authorities believe the shooter used a handgun, according to a law enforcement official who was not authorized to discuss an ongoing investigation and spoke on condition of anonymity.

“The unthinkable has happened,” said Democratic Rhode Island Gov. Dan McKee, who vowed that all resources were being deployed to catch the suspect.

Mayor Brett Smiley said a shelter-in-place remained in effect and encouraged people living near the campus to stay inside or not return home until it is lifted. Streets that normally bustle with activity on weekends were eerily quiet.

“The Brown community’s heart is breaking, and Providence’s heart is breaking along with it,” Smiley said.

Emma Ferraro, a chemical engineering student, was in the building’s lobby working on a final project when she heard loud pops coming from the east side. Once she realized they were gunshots, she darted for the door and ran to a nearby building where she sheltered for several hours.

Nine people with gunshot wounds were taken to Rhode Island Hospital, where one was in critical condition, said Kelly Brennan, a spokesperson for the hospital. Six required intensive care but were not getting worse, and two were stable, she said.

University officials initially told students and staff that a suspect was in custody, but later said that was not the case. The mayor said a person preliminarily thought to be involved was detained but was later determined to have no involvement.

Nearly five hours after the shooting, officers in tactical gear led students out of some campus buildings and into a fitness center.

The shooting occurred in the Barus & Holley building, a seven-story complex that houses the School of Engineering and physics department. According to the university’s website, the building includes more than 100 laboratories, dozens of classrooms and offices.

Engineering design exams were underway there when the shooting occurred.

Eva Erickson, a doctoral candidate who was a finalist earlier this year on the CBS reality competition show “Survivor,” said she left her lab in the engineering building 15 minutes before shots rang out.

The engineering and thermal science student shared candid moments on “Survivor” as the show’s first openly autistic contestant. She was locked down in the campus gym following the shooting and shared on social media that the only other member of her lab who was present was safely evacuated.

Biochemistry student Alex Bruce was working on a final research project in his dorm directly across the street from the building when he heard sirens and received a text about an active shooter shortly after 4 p.m.

“I’m just in here shaking,” he said, watching through the window as a half-dozen armed officers in tactical gear surrounded his dorm.

Students in a nearby lab hid under desks and turned off the lights after receiving an alert about the shooting, said Chiangheng Chien, a doctoral student in engineering who was about a block away from the scene.

Mari Camara, a junior from New York City, was coming out of the library and rushed inside a taqueria to seek shelter. She spent more than three hours there, texting friends while police searched the campus.

“Everyone is the same as me, shocked and terrified that something like this happened,” she said.

Brown, the seventh oldest higher education institution in the U.S., is one of the nation’s most prestigious colleges, with roughly 7,300 undergraduates and more than 3,000 graduate students. Tuition, housing and other fees run to nearly $100,000 per year, according to the university.

President Donald Trump told reporters that he had been briefed and “all we can do right now is pray for the victims.”

Rhode Island has some of the strictest gun laws in the U.S. Last spring the Democratic-controlled Legislature passed an assault weapon ban that will prohibit the sale and manufacturing of certain high-powered firearms, but not their possession, starting next July.

Schoenbaum reported from Salt Lake City and Durkin Richer from Washington. Associated Press journalists Mike Balsamo and Seung Min Kim in Washington, Jack Dura in Bismarck, North Dakota, John Seewer in Toledo, Ohio, and Martha Bellisle in Seattle contributed.