Only signed in users will see discount codes and have complete access to product lines, datasheets and pricelists
The AC/DC inverter functions to change the direct current (DC) of the battery into an alternating current (AC) which is used by the electric motor to move the vehicle. Additionally, the inverter on an electric vehicle is tasked with changing the AC current of the regenerative braking to DC current that is consequently used to recharge the battery.
AC/DC inverters have sub components, each with its different story:
Market Trends and TIM Needs
Power modules consist of IGBT modules, MOSFET modules, IPMs and SIP modules. Power modules are used extensively in high power inverter applications.Thermal management is crucial since more power always warrants more heat and hence more thermal dissipation needs. That's why we have a range of Thermal interface materials, made for power modules such as PTM-6000HV
Thermal Interface material Application considerations:
Phase change materials (PCM) are designed to minimize thermal resistance at interfaces and maintain stable performance through the rigorous reliability testing required for long product life applications.
Their main benefits are:
DC link capacitors can be either film or electrolytic capacitors that are used as plugins by being mounted directly on IGBTs. They have self healing capabilities, coming from their metallized dielectric propylene and can maintain an exquisite dielectric in harsh operating conditions and elevated temperatures. They need to be able to withstand temperatures up to 125°C for long operating periods of time.
Their self healing function ensures high reliability, high capacitance stability and a very limited capacitance loss throughout the product's life span. Among others, they can be used for DC/AC inverters for wind and solar applications and are commonly found in frequency inverters. These intermediaries reduce the power transfer noise during the AC source conversions and are crucial for the high power circuits that they are commonly used.
TIMS are not the only product category that has to be "custom made" for Power modules. High power requires not just dissipation but also thermally stable semiconductor materials that can withstand the rigourous thermal cycling requirements. These range from die attach, encapsulants and bonding wires to epoxy molding compounds.Epoxy molding compounds such as the GR750 series and GR15F-MOD2C are made with power modules in mind. With exquisite thermal performance these compounds have a very high Glass transition temperature and easy pass HTRB tests while keeping high MSL levels. They are designed for high power devices with low moisture absorption requirements.