Advantages of a Silicon Carbide Inverter

Silicon carbide inverters are electrical power converters which convert direct current (DC) to alternating current (AC). They use silicon carbide field-effect transistors (MOSFETs) to increase efficiency and decrease size.

Silicon carbide power electronics for electric vehicles offer several advantages over their counterparts: lower temperatures, faster switching speeds and reduced conduction losses in traction inverters – leading to greater driving range and energy utilization.


Though silicon carbide inverters cost more than their silicon (Si) counterparts, they offer many advantages that make the higher investment worth while. Silicon carbide offers higher breakdown field voltage tolerance than Si; thus enabling greater current to flow and thereby reducing device resistance and increasing efficiency. Furthermore, its superior thermal conductivity enhances cooling, further decreasing power losses.

Silicon carbide inverters are more affordable and more compact than their silicon counterparts, making them perfect for electric vehicles (EVs). Their reduced cooling requirements reduce overall system costs and ultimately result in reduced prices for EVs.

Silicon carbide inverters help reduce battery weight, which is one of the primary barriers to EV adoption, helping address range anxiety as well as extend its range by up to 7% without increasing battery size.

Inverters convert direct current from an electric vehicle’s batteries into alternating current for its traction motor and back again for regenerative braking, making them one of the cornerstones of its drivetrain and dramatically enhancing performance. But their production can be costly; engineers are seeking alternative technologies such as silicon carbide (SiC) inverters in order to bring down costs.

Silicon Carbide, or SiC, is an inorganic chemical compound made up of silicon and carbon that occurs naturally as the mineral moissanite; however, since 1893 mass production has taken place. SiC is used in applications requiring high durability such as automobile brakes and clutches as well as ceramic plates in bulletproof vests and as an abrasive in sandpaper. As one of the hardest synthetic materials known to man it also features Lely method of crystal growth at 2,500 degrees Celsius that works by placing porous graphite into tubes heated at such temperatures for crystal growth to occur – more info here


Silicon carbide inverters offer many advantages over silicon-based power converters due to their higher efficiency and reliability, smaller size, lighter weight and reduced installation difficulties. Furthermore, fewer passive components are necessary and higher voltages can be handled more easily; additionally, switching loss is lower while thermal dissipation is significantly lower allowing compact rugged cases with reduced cooling costs to be constructed.

Silicon carbide semiconductors may offer many advantages to power electronics applications; however, their use remains limited due to being more expensive than traditional silicon devices. However, thanks to improvements in SiC power transistors and diodes this gap is closing rapidly.

SiC is distinguished from traditional silicon-based semiconductors by having a wider bandgap that allows it to operate at higher temperatures and voltages, making it an excellent solution for applications requiring high power density with efficient energy conversion, such as electric vehicles or solar inverters.

SiC MOSFETs present unique production challenges due to their complex structure and inability to be grown on traditional silicon substrates; instead it must be produced as powder before being cut into wafers with synthetic diamonds in an expensive and time-consuming process.

To properly use a silicon carbide inverter, it is crucial that the appropriate design be selected. This involves choosing control algorithms, implementing pulse width modulation techniques and creating feedback loops for voltage and current regulation. Furthermore, selecting an enclosure which offers protection from environmental factors as well as selecting an efficient power routing strategy are necessary steps in creating the inverter’s operation.

SiC inverters can boost your electric vehicle by as much as 7% compared to conventional silicon-based drive converters, due to faster switching frequencies and being capable of handling higher operating temperatures. They’re also more reliable with greater dielectric strength compared to silicon.


Silicon carbide is an advanced compound semiconductor with greater flexibility than its silicon-based counterparts, offering higher thermal conductivity, higher breakdown voltage, superior switching characteristics, high temperature capabilities and low switching losses that help decrease energy loss in devices while increasing their efficiency – ideal for power electronics in electric vehicles where an inverter converts direct current (DC) from batteries into alternating current (AC) for regenerative braking or engine speed control purposes.

Silicon carbide inverters offer numerous advantages for manufacturers. These benefits include lower operating and maintenance costs, increased power density, faster switching times, as well as lower energy consumption – essential components in creating more cost-efficient EVs while also creating an enhanced charging experience for their users. Furthermore, this technology contributes to sustainability efforts by helping manufacturers produce lighter EVs with increased efficiency, improving charging experience while helping maintain sustainable practices and energy consumption reduction.

Silicon carbide inverters offer more than performance boosts – they also improve durability and reliability by withstanding high temperatures, resisting corrosion, and providing improved thermal conductivity (three times better than traditional silicon and second only to diamond). Their enhanced thermal efficiency helps lower cooling costs and extend device lifespan.

EV inverters are essential components of an electric vehicle drivetrain and play a central role in converting DC power from onboard batteries into AC current for driving the traction motor and back again for regenerative braking. Innovation here is vitally important to both safety and performance of any EV, therefore innovation in this space must remain top of mind among stakeholders.

Manufacturing a silicon carbide inverter begins with fabricating silicon carbide power semiconductor devices such as MOSFETs or Schottky diodes from silicon carbide wafers using various processes such as wafer preparation, epitaxial growth, doping, lithography and etching. Once designed, its validity must be tested against relevant safety standards and automotive industry regulations before moving into final steps of production such as PCB assembly with manufacturers, suppliers and assembly partners to complete production of the inverter product.


EV inverters convert DC power from vehicle batteries into AC that is used by electric motors to propel cars. As any failure could lead to significant power loss and potentially harm its battery, many EV manufacturers are turning to silicon carbide inverters which have proven more reliable over traditional silicon-based ones, including being capable of operating at higher voltages and temperatures and withstanding more stress than their silicon counterparts.

Silicon carbide inverters require many steps for production. First, their design must be created. Next, functionality and electrical performance tests must be conducted. Following that, assembly occurs on a printed circuit board (PCB). Assembly includes prepping the PCB substrate before adding copper layers through etching/plating processes, drilling holes for component mounting purposes, applying solder masking/ silkscreen marking and finally placing into protective casing for environmental factors as well as electrical insulation purposes.

Designing a silicon carbide inverter requires keeping size and weight in mind, since its installation and operation should be easier when smaller devices are employed. This is particularly pertinent when installing solar PV systems with multiple panels or energy storage applications; their wider band gap also enables them to work at higher temperatures than conventional silicon technologies.

Silicon carbide inverters offer higher switching frequencies that enable thinner and smaller magnetics to be used, leading to weight savings and reduced capital, installation, and maintenance costs. Their higher efficiency also results in less power being lost during conversion.

While silicon remains the dominant semiconductor material today, silicon carbide (SiC) is becoming an increasingly popular base material in power electronics devices and electric vehicles. SiC is more durable, faster and cost-effective than silicon alternatives.

Silicon carbide is an ideal material to use in power electronic devices like inverters, which convert direct current electricity from PV modules into alternating current for use by electric vehicles and other grid-connected equipment. Unfortunately, some energy is lost as heat during this conversion process; historically speaking, state-of-the-art silicon inverters were only 98% efficient; SiC inverters can achieve up to 99% efficiency across a wide range of power levels while producing optimal quality frequency output.

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