HV-LV DC-DC converter

The architecture of electric vehicles comprises at least one low-voltage sub-network with a low-voltage energy storage and multiple electrical loads, and one high-voltage sub-network with a high-voltage energy storage. The auxiliary HV/LV DC/DC job is to enable the bi-directional energy flow between these two electrical subnets.

Your biggest challenges: achieving greatest-possible conversion efficiency and keeping overall system costs in check. The space required for the DC/DC should also be kept to an absolute minimum. Infineon’s portfolio is specially designed to help you overcome these barriers with ease. In (H)EVs the DC-DC converter supplies the 12 V power system from the high-voltage battery.

(H)EV - Auxiliary HV/LV DC/DC system diagram

Click here to enlarge image

System benefits

• Fully automotive-qualified product portfolio including both power module and discrete solutions
• Supports a wide range of highly-efficient conversion topologies (including bidirectional)
• Compact design with highest power density
• Very low switching losses at high switching frequencies
• Isolation-integrated in gate driver
• High-performance 32-bit microcontroller solutions
• Evaluation Kit available to reduce system development time

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