[Adoption Example] amnimo Inc. (Yokogawa Electric Group) Linux Gateway for Outdoor Surveillance Cameras

ROHM SiC SBDs contribute to high efficiency operation in PoE power supply circuits

Adoption Background

Designed for outdoor surveillance cameras, amnimo's AG20 edge gateway device is equipped with a Linux OS that supports PoE (Power over Ethernet) capable of supplying power through LAN cables. Simply connecting an IP (network) camera to the device makes it possible to achieve a VMS (Video Management Software System) linked to amnimo’s cloud service. In addition to various terminals, edge recording is also enabled by installing an SSD, allowing for a variety of operations. During product development, power conversion efficiency of the PoE block (which consumes a large amount of power) was an issue, so we looked for a diode with 600V breakdown voltage and fast trr (Reverse Recovery Time). Unlike Si-based FRDs where trr increases with temperature, SiC SBDs can maintain high efficiency even at high temperatures and breakdown voltages, contributing to improved circuit performance.

< Customer Feedback >

・amnimo Inc. Development Staff

Thermal design is a major issue for outdoor products due to their harsh operating environments. As our product also serves as a power supply unit for PoE, power consumption of the entire device increases, and if the conversion efficiency is low, heat is generated internally, making it difficult to use outdoors. PoE circuits operate at relatively high voltages, so breakdown voltage is also a significant issue. ROHM SiC SBDs solve these challenges by providing high performance, not only in terms of breakdown voltage, but V_F and trr as well.

Products Used

• SiC SBD

Related Pages

• SiC Power Devices

About amnimo Inc.

amnimo Inc. (Yokogawa Electric Group)
Website：https://amnimo.com/en/

The society we live in today stands at the start of an era that is becoming more prosperous and convenient through the use of IoT and AI technologies. We believe that this new world will not be sustained by simply a few companies, but one created through a collaborative effort among individuals and entities of various scales and industries.
Amnimo aims to contribute to an interconnected world of AI and IoT by providing easy-to-use, high reliability devices and software services that seamlessly integrate IoT and AI into social infrastructure to address challenges faced by both customers and society.