48 V to 12 V DC-DC converter
Boost efficiency with Infineon's comprehensive portfolio of 48 V-12 V DC-DC converters
The mild hybrid powertrain approach appeals to passenger cars as well as to commercial and agricultural vehicles due to the shared goal of reducing CO₂ emissions. Infineon offers a complete and comprehensive system solution for 48 V to 12 V DC-DC converters with high integration to optimize space utilization. The portfolio includes supply ICs featuring integrated transceivers (SBC), microcontrollers, advanced gate drivers, and high-power MOSFETs.
For more details on power Conversion HV/LV converter, you can visit the dedicated application page (H)EV - Auxiliary HV/LV DC/DC.
48 V to 12 V DC-DC multi-phase buck-boost converter topology
Infineon offers a complete and comprehensive system solution for 48V to 12V DC-DC converters, including supply ICs, microcontrollers, gate drivers and high power MOSFETs. The requirements for 48V to 12V DC-DC converters vary from application to application, but all require high efficiency, low losses, and high integration for space-saving designs. Depending on our customer's system requirements, we provide the most appropriate topologies to support as well bidirectionality, high efficiency, galvanic isolation, and size and power density. We offer expert system knowledge and a complete portfolio for the following topologies: multiphase buck converter, isolated full bridge with synchronous rectification and switched tank converter (ZSC).
- Complete system solution
- Scalable approach
- High integration
- Space-saving design
Bi-directional multi-phase buck-boost converter
At Infineon, we recognize significant benefits of the buck-boost converter, including its bi-directional capabilities, simplified control requirements, minimal component count, and fail-safe operation supported by the multi-phase approach. Elevating the switching frequency to higher levels is effortlessly achievable with Infineon's excellent in-house offering of GaN components.
Requirements for 48 V / 12 V DC-DCs in mild hybrid electric vehicles
With up to 3 kW of power, Infineon's 48 V to 12 V DC-DC converters are ideally tailored for MHEV applications. Our DC-DC converters deliver high-power efficiency with minimized power dissipation and a complete system solution with a focus on high integration, a robust functional safety concept, and outstanding Infineon automotive quality. This makes our offering a superior choice for MHEV requirements.
- Understand the basic structure of a DC-DC brick and how it works
- Be familiar with the key parameters of MOSFETs and their design considerations in a DC-DC brick
- Know how to quickly and accurately select the right MOSFETs for your DC-DC brick
- Get an overview of the main feature set of this 48-volt capable EiceDRIVER™.
- Understand its different integrated protection mechanisms.
In this training you will:
- Learn about the transition from fule injection combustion engine to full battery electric vehicles and the main 48V powered applications.
- Additionally get an overview about Infineon’s comprehensive MOSFET portfolio for 48 V applications and their support material.
- Have an overview of the converters needed in electric vehicles.
- Analyze the 2-quadrant converter topology in buck and boost mode and the half-bridge converter with center tap rectification topology.
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