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电动汽车中的高低压电力传输

了解可在电动汽车中实现高低压DC-DC转换的电力电子设备。我们的解决方案指南以48V电源网为重点,包括产品价值主张和电动汽车电子产品示例。

概览

高压-低压 DC-DC转换器是现代电动汽车和混合动力汽车的必不可少的组成部分,可在高压(HV、400V/800V电池结构)和低压(LV)电网之间实现高效的电力传输。这些转换器支持HEV、PHEV和BEV等各类电动汽车的广泛应用,为推进系统和辅助系统提供可靠的能源管理。

安森美解决方案平台为单向和双向功率流提供可扩展的模块化架构,设计人员能够优化能源分配,提高系统灵活性。典型的转化器功率等级从1 kW到5 kW不等,低压侧元件的额定电压为40V-100V,高压运行时可高达1200V。我们的交互式框图可指导工程师进行系统集成,重点关注电力电子和拓扑选择的最佳实践,保障安全合规和冗余设计。

安森美的解决方案采用先进的碳化硅EliteSiC MOSFET、超级结(SJ)MOSFET和汽车电源模块(APM16/APM32),可为400V系统和800V平台提供最高水平的效率和可靠性。我们强大的DC-DC转换技术、无缝集成以及领先的性能表现,将帮助您的汽车电气架构应对各种挑战。

产品

Silicon Carbide (SiC) MOSFETs

Our SiC MOSFETs are designed to be fast and rugged and include system benefits from high efficiency to reduced system size and cost. MOSFETs are metal–oxide–semiconductor field-effect transistors with insulated gates. These silicon carbide MOSFETs have a higher blocking voltage and higher thermal conductivity than silicon MOSFETs, despite having similar design elements. SiC power devices also have a lower state resistance and 10 times the breakdown strength of regular silicon. In general, Systems with SiC MOSFETs have better performance and increased efficiency when compared to MOSFETs made with silicon material.

There are many advantages to choosing SiC MOSFETs over silicon MOSFETs, such as higher switching frequencies. High-temperature development is also not a concern when using SiC MOSFET modules because these devices can operate efficiently even in high heat. Additionally, with SiC MOSFETs, you benefit from a more compact product size because all components (inductors, filters, etc.) are smaller.

IGBTs
Insulated Gate Bipolar Transistors (IGBTs) that offer maximum reliability in high performance power conversion applications.
Gate Drivers
GaN, IGBT, FET, MOSFET, H-Bridge MOSFET, and SiC MOSFET inverting and non-inverting drivers ideal for switching applications.
Wired Transceivers & Modems
Modems and transceivers for a variety of data transmission protocols, including FlexRayTM, KNX, M-BUS, LIN, CAN, MAU, HART and Power Line Carrier (PLC).
Low/Medium Voltage MOSFETs
Portfolio of comprehensive range of Low-medium voltage power Mosfets that delivers superior performance and reliability for switching applications. Our cutting-edge PowerTrench® T10 technology delivers industry leading RDS, higher power density, reduced switching losses and better thermal performance.
High Voltage MOSFETs
Portfolio of high voltage super-junction (SJ) MOSFETs meant for general usage and for several applications such as Power Factor correction, server/telecom power, led lighting.
Linear Regulators (LDO)
A portfolio that provides optimum solution for low power, space conscious and low noise designs.
Current Sense Amplifiers
Current sensing requires accurate measurements and onsemi’s current sense amplifiers offer high degree of precision current sensing along with the advantages of wide input common mode range, bidirectional current sensing and high/low side current sensing.
EEPROM Memory
Serial EEPROM memory, with I2C, SPI, or MicroWire interfaces.

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