解决方案搜寻 技术支持

电池管理系统

Battery Icon电池管理系统 (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).

参考设计

Additional Documents
设计
产品
DER-952Q - 86 W Power Supply for 800 V Bus Using InnoSwitch3-AQ (1700 V SiC Switch)
Product InnoSwitch3-AQ
DER-1035Q - 70 W Power Supply Replacing 12 V Battery in 400 V BEV Systems Using InnoSwitch3-AQ (1700 V SiC Switch)
Product InnoSwitch3-AQ
DER-953Q - 100 W Power Supply Replacing 12 V Battery in 400 V BEV System Using InnoSwitch3-AQ (900 V PowiGaN Switch)
Product InnoSwitch3-AQ
DER-965Q - 10 W Non-Isolated Buck Power Supply for 400 V BEV Systems using Automotive-Qualified LinkSwitch-TN2Q
Product LinkSwitch-TN2Q
DER-948Q - 35 W Power Supply for 800 V Bus with 30-1000 VDC Input and 15 V Output Using InnoSwitch3-AQ (1700 V SiC Switch)
Product InnoSwitch3-AQ
RDR-707Q - 9.75 W Non-Isolated Buck Power Supply using Automotive-Qualified LinkSwitch-TN2Q
Product LinkSwitch-TN2Q
DER-913Q - 35 W Power Supply for 800 V Bus with 40-1000 VDC Input Using InnoSwitch3-AQ (1700 V SiC Switch)
Product InnoSwitch3-AQ
RDR-919Q - 60 W Power Supply for 800 V Bus with 50-1000 VDC Input Using InnoSwitch3-AQ (1700 V SiC Switch)
Product InnoSwitch3-AQ
DER-719Q - 2.7 W StackFET Buck Power Supply using Automotive-Qualified LinkSwitch-TN2Q
Product LinkSwitch-TN2Q
DER-907Q - 20 W Power Supply for 400 V Bus with Planar Transformer Using InnoSwitch3-AQ
Product InnoSwitch3-AQ
RDR-840Q - 30 W Power Supply for 400 V Bus with 30-550 VDC Input Using InnoSwitch3-AQ
Product InnoSwitch3-AQ
DER-844Q - 4.5 W Non-Isolated Buck Power Supply using Automotive-Qualified LinkSwitch-TN2Q
Product LinkSwitch-TN2Q

相关产品

Related Products
产品
数据手册
拓扑结构
电压等级
产品描述
Topology Flyback, Secondary Side - FluxLink Regulated
Power Level 100 W
Description

适合汽车应用的集成750 V、900 V及1700 V开关和FluxLink反馈技术的恒压/恒流准谐振反激式开关IC

Topology Non-Isolated Flyback, Buck/Boost/Buck-Boost
Power Level 850 mA
Description

适合汽车应用的集成了系统级保护的高能效开关IC,可实现低元件数的电源设计

补充文件