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電池管理系統

Battery Icon電池管理系統 (BMS)

The battery pack is the most expensive single component in an EV and contains detailed monitoring and control to maintain a long, safe operating life. The BMS is responsible for monitoring individual cell health, balancing, operating pack heating and cooling systems, reporting state of charge and disconnecting power from the vehicle in a fault or collision.

This monitoring must continue even when the vehicle itself is parked and not in use. So that, for example, the pack heater can be engaged to maintain acceptable temperature in very cold conditions. This makes energy efficiency and minimizing the load on the HV battery critical to minimize range loss or worst case to prevent a dead vehicle.

PI's reinforced isolated flyback and non-isolated buck converter products are idea for generating internal low voltage supply rails. The extremely low no-load consumption and high efficiency reduce background discharge of the HV battery. Overall power loss is lower than relying on the 12 V system and provides the BMS the ability to continue to operate on loss of the 12 V system (discharged 12 V battery).

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檢視 PDF Flyback, Secondary Side - FluxLink Regulated 30 W

內含整合式 750 V 及900 V開關和 FluxLink 回授的 CV/CC QR 返馳式切換開關 IC,適用於汽車應用

檢視 PDF Non-Isolated Flyback, Buck/Boost/Buck-Boost 360 mA

可供汽車使用的高度節能型切換開關 IC,具備低元件數電源供應器的整合式系統級保護

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