馬達驅動：三相 AC400V 逆變器

為了高效驅動大電流馬達，要求逆變器具有大功率且能高效運行。在馬達驅動方面，羅姆提供以SiC MOSFET為核心的先進功率半導體、高性能磁氣式絕緣閘極驅動器IC以及高精度分流電阻的電源解決方案。另外，羅姆還擁有輔助電源用電源IC等豐富的產品陣容，透過提出系統級的解決方案，為實現高效運行和提高可靠性做出貢獻。

Block Diagram

*Click to enlarge image.

Topology Selection

When designing an electronic circuit, especially power system circuits, it is necessary to select a circuit configuration (topology) that meets the required specifications because input voltage, output voltage, power, isolation, etc. vary depending on the application. The selection of the most suitable components also differs depending on the topology. If the wrong components are selected, the required specifications cannot be met and the circuit design must be redone. The topology selection page provided by ROHM guides you through the selection of the best device for different topologies.

Topology Selection

參考設計

羅姆提供將IC產品和Discrete產品相結合以解決客戶各種困擾的參考板解決方案。將系統級評估結果和設計資料作為參考設計提供給客戶，助力客戶減少開發工時。

・Reference Designs
・5kW High-Efficiency Fan-less Inverter Reference Design
・Isolation Fly-back Converter Quasi-Resonant method Output 24W 24V Reference Design
・Built-in SiC MOSFET Isolated Fly-back Converter QR method Output 48W 24V Reference Design
・30A Current Sensing with current sense Amplifier (CSA) Reference Design

設計模型

羅姆提供功率元件和IC產品的電路模擬及熱模擬所需的各種模擬模型。您可以從各個產品頁面或以下連結下載。

所有產品通用

・SPICE

僅Discrete產品

（功率元件、MOSFET、電晶體、二極體等）
・LTspice
・Thermal
・PLECS

僅IC產品

（運算放大器、電源管理IC、電源IC等）
・Unencrypted SPICE（可從各產品頁面下載）
This is an unencrypted version of PSPICE, a SPICE model that can be imported into any simulator.

ROHM Solution Simulator

「ROHM Solution Simulator」是在ROHM官網上運行的電子電路模擬工具。從零件選型和元件單體驗證等開發初期階段到系統級的驗證階段，各種模擬工作都可以在Web上執行。羅姆提供的SiC元件等功率元件產品、驅動IC和電源IC等IC產品，都可以在接近實際環境的電路解決方案中輕鬆快速地一併進行驗證，從而可顯著縮短應用產品的開發週期。
*需要註冊MyROHM方可使用。

ROHM Solution Simulator

影片

羅姆SiC電源解決方案

介紹羅姆的SiC功率元件和有助於設備小型化和效率提升的SiC解決方案。如果您正在考慮導入SiC產品，歡迎隨時聯繫羅姆。

Flexible lines

ROHM Apollo’s Hirokawa Factory in Fukuoka Prefecture began operating a new semiconductor back-end process line. Sample production for sales expansion started April 2021. The following year, in 2022, we began mass producing discrete products. The clean room, which embodies the concept of an ‘unmanned high-mix production line’ features a compact design using three sets of equipment neatly arranged in a U-shape with AGVs (Automated Guided Vehicles) running between them. Technicians monitor the status of all lines via monitors in an adjacent control room.

點擊觀看有關「羅姆製造」的影片