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Case study: Powering 400V accessory loads

Supporting legacy accessories in new 800V architectures

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お客様の課題

As the 800V traction battery becomes more common among EVs, loads that were powered directly from a 400V battery are now incompatible. The investment in cost and time frames to engineer 800V versions is prohibitive. Yet converting voltage for these high power loads – compressors, pumps for cooling and HVAC, etc. – needs to be as efficient and lightweight as possible to continue to maximize the driving range of EVs. The key challenges were:

  • 800-400Vのディスクリートコンバータは、大きく重くコストもかかる
  • 車両重量を増やさない
  • 400V 負荷への電力供給のため、比較的リーズナブルに速く実装可能なソリューションが必要
Automotive AC button image

Vicor ソリューション

High density power conversion using a single Vicor power module provides the solution with the smallest volume, lightest weight, and highest efficiency. Power modules are already tested, often only require passive cooling, and are easy to package virtually anywhere in the power system compartment. With this modular approach, it’s easy to adapt the solution to meet specifications for use in different vehicle platform.

主な利点

主な利点

power lightening bolt icon

1つのモジュールで出力電力37kW

Lightweight feather icon

最小・最軽量のソリューション

Cooling snowflake icon

高出力 - 17kWまでなら、パッシブ冷却が可能

電力供給ネットワーク (PDN)

A single, compact NBM9280 the size of a KitKat® candy bar can power a 37kW, 400V rail to power accessories from the 800V battery. With a peak efficiency of 99.0%, the NBM is a highdensity power converter that weighs only 200g. It can be packaged for flexible placement within tight spaces in the vehicle engine compartment where a bulky, heavy discrete power supply simply would not fit.

Vicor power delivery network for powering 400V accessory loads
Vicor 800V/400V NBM9280

800V/400V NBM9280 data sheet icon button

非絶縁型 電圧変換比率固定

入力電圧: 200 – 460V (boost) or 400 – 920V (buck)

出力電圧: 400 – 920V (boost) or 200 – 460V (buck)

出力電流: 最大 75A

ピーク効率: 99.0%

92 x 80 x 7.4mm

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