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空调和辅助DC-DC转换器

Climate Control IconIn regular ICE vehicles additional loads were driven directly by the engine, either through belts or, for agricultural vehicles, a power takeoff shaft. These include the water and hydraulic pumps, air and A/C compressor, and alternator. In an EV cabin heating must be provided as waste heat from the engine is no longer available.

When moving to an electric vehicle, these loads must be powered electrically. Due to the high-power levels (kW’s) it is lower cost and more efficient to utilize the HV system voltage to do this.

Auxiliary HV DC-DC converters provide the low voltage supply rails from the, up to 950 V, HV system voltage for the control electronics driving each of these modules. In addition, there are other applications such as contactor control and on-board convenience inverters (for 120/240 VAC outlets) which are also powered from the HV system.

Both non-isolated buck and flyback and reinforced isolated flyback solutions from Power Integrations are ideal here, providing very low part count and small footprint solutions.

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查看PDF Flyback, Secondary Side - FluxLink Regulated 30 W

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

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

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

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