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Unleash the Power of SiC
Hi, I'm Nagarajan Sridhar, marketing manager for Silicon Carbide Gate Drivers at Texas Instruments. Here in [? APEC, ?] TI is excited to show how we reduce the global carbon footprint using silicon carbide and TI's gate drivers. Here is an example of a solar or regular charging. You can see that we have power being extracted from the solar panels into a 10-kilowatt solar inverter, switching at 50 kilohertz, and running a 99% efficiency through an EV charging station and stored into the car battery using an onboard charger. This onboard charges a 6.6 kilowatt. And what you're seeing here is an AC/DC portion of the onboard charger. This onboard charger is switching at 100 kilohertz and 98.5% efficiency. Now, silicon carbide. Why silicon carbide? Silicon carbide gives you a very high efficient system, makes it robust, and makes the system compact. For example, for the 10-kilowatt inverter, if you were to use IGBTs, this size would be twice of what you would see here. Now, let's talk about our gate drivers. Both these systems need gate drivers. Here is our TI's single-channel gate driver. And here is TI's dual-channel gate driver. Now, what is common among all these drivers? First off, the drivers need to operate at very high voltage. They need to have a very short response time. Why so? Because as I said earlier, silicon carbide switches very fast, so your response times need to be short to ensure good protection. Thirdly, they have a very high noise immunity. These systems are high power, and a lot of noise is generated. So your noise immunity needs to be greater than 100 volt per nanoseconds, which TI's gate drivers offer. And finally, they all need to have isolation. TI has a proven isolation technology, namely capacitor isolation. It does an industry-leading lifetime and a high-working voltage of 1.5 kV, and the ability to withstand very high surge voltage. For more details, go to ti.com/SiC for gate drivers. And for isolation, go to ti.com/isolation. Thanks for watching.
Details
Date:
March 8, 2018
What makes silicon carbide gate drivers a disruptive technology in power electronics? We're showing you live from APEC 2018.
Additional information
For more, visit: ti.com/sic
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