?Our silicon carbide substrates and thermal management solutions are enabling technologies for power electronics that improve the energy efficiency of electric and hybrid-electric vehicles. Our industry-leading semiconductor lasers, optics and materials are at the core of LiDAR systems embedded in advanced driver assistance systems and autonomous vehicles.
High Power Electronics
Power electronics based on silicon carbide enable systems to achieve significantly improved power utilization and conversion efficiencies, lower operating temperatures, and reduced thermal loads. They shorten battery charging time, reduce overall electricity consumption, and increase total system performance and reliability. One leading application is in automotive systems where power electronics based on silicon carbide can be found in electric and hybrid-electric vehicles, specifically in primary motor DC-to-AC drive inverters, battery chargers, DC-to-DC converters, and other DC-to-AC inverters that power other systems in these vehicles. II-VI is a global leader in silicon carbide substrates. Our comprehensive understanding of crystal growth and materials processing was acquired over decades of sustained R&D and manufacturing, allowing us to continuously evolve our technology and IP portfolio. We offer a full range of substrate diameters, including the world’s first 200 mm.
New generations of vehicles will be equipped with a greater number of sensors that can monitor a driver’s alertness and let occupants interact with the console using touch sensing or gesture recognition. In the event of a collision, sensors can help provide critical information about the position and attention of occupants to activate restraints and deploy airbags in the best possible manner. II-VI’s products enable the most advanced in-cabin control and monitoring systems for the latest applications in human-vehicle interactions. Our vertical cavity surface emitting lasers (VCSELs) are ideal for optical touch sensors integrated in dashboards or steering wheels. Our VCSEL arrays can provide infrared cabin illumination and structured light projection to enable gesture recognition.
Light detection and ranging (LiDAR) sensors enable advanced driver assistance systems (ADAS) to perform functions such as emergency braking and adaptive cruise control. LiDAR sensors are also expected to be embedded in autonomous vehicles. II-VI enables LiDAR sensors with a broad portfolio of components, including high power laser diodes, fiber amplifiers as light sources, optical filters for detection and environmental hardening, mirrors for scanning, and thermoelectric coolers for temperature control. Our product offering includes edge emitters and VCSELs that are capable of providing high peak powers for direct illumination and imaging. Emission and return windows on LiDAR systems are available in ultra-hard bulk materials, such as silicon carbide and diamond, and with optical coatings that are water-shedding and oil resistant. Our thermoelectric coolers are qualified to automotive standards and enable LiDAR systems to operate with optimal performance and efficiency.?
Thermal Management Systems
Automotive manufacturers continue to differentiate their products with comfort features such as temperature-controlled car seats and cup holders, all of which require thermoelectric devices. Electric and hybrid-electric vehicles are spurring the demand for thermoelectric solutions for distributed heating and cooling of battery systems. Thermoelectric thermal management systems also enable LiDAR sensors to operate over a wide range of ambient temperature. II-VI offers thermal management solutions that are qualified to stringent automotive industry standards and tailored to various applications.