Tesla manufactures its drive inverter for the Model S/X in-house at its Fremont factory, but the automaker is using proven off-the-shelf products — primarily TO-247 transistor packages. The company used this approach from the start when working on the Roadster. Like what it has been doing with battery cell technology, the automaker saw an opportunity to attach its product to improvements in transistor systems to gradually allow more powerful and efficient powertrains.

While the strategy served it well so far, Tesla is moving away from it with its third generation platform and consequently, with the Tesla Model 3. The company will be using new battery cells manufactured at its Gigafactory in Nevada and as it turns out, it also started from a blank sheet for its new inverter architecture. Electrek has learned new information about the system which has some interesting implications for the upcoming $35,000 all-electric sedan. expand full story