概览

简介

瑞萨电子用于48V轻度混合动力电动汽车(MHEV)和电动摩托车的系统解决方案使用高效的12V/48V DC/DC转换器。 该解决方案可将PCB面积减少46%。 这是通过使用具有出色开关特性的氮化镓(GaN)高电子迁移率晶体管(HEMT)来实现的,从而实现具有500kHz高开关频率和1.3μH小电感器的高效功率转换。

系统优势:

  • 自动降相功能即使在低负载下也能实现高效的功率转换,在 400W 至 3kW 的宽负载范围内功率效率超过 94%
  • PWM 控制器无需复杂的 DC/DC 转换器控制软件开发
  • 半桥驱动器可驱动氮化镓 HEMT 器件
  • 自适应死区时间功能可自动调整死区时间以实现最佳控制
  • MCU支持通过CAN FD对DC/DC转换器进行模式设置和状态监控

产品对比

应用

应用

  • 低压轻度混合动力汽车和纯电动汽车
  • 牵引电机控制器系统

成功产品组合交互框图

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AS-249 AS249 AS249 AS249 Sheet.127 Tri component Component block.745 Component block.631 Component block.77 11pt text 11pt text Tri component.123 Component block.745 Component block.631 Component block.77 11pt text 11pt text 12V Battery 12V Battery 12V Battery 12V Battery 12V Battery 12V Battery 12V Battery 12V Battery GaN 1 GaN GaN Half-Bridge Driver Half-Bridge Driver Half-BridgeDriver GaN 2 GaN GaN Inductor Coreless (Air conductor) Sheet.139 Sheet.140 Sheet.141 Sheet.142 Sheet.143 Sheet.144 Sheet.145 Sheet.146 Sheet.147 Bidirectional PWM Controller Bidirectional PWM Controller Bidirectional PWMController MCU MCU MCU 48V Battery 48V Battery 48V Battery 48V Battery 48V Battery 48V Battery 48V Battery 48V Battery CAN/CANFD Transceiver CAN/CANFD Transceiver CAN/CANFDTransceiver Connector Arrow Connector Arrow.161 Connector double arrow Connector Arrow.163 Connector double arrow.164 Connector Line.166 Connector Arrow.167 Connector Arrow.168 Connector Arrow.169 Connector Line Connector Line.173 Connector Line.174 Connector Line.176 Connector 1 Connector 1.179 Phase 2 Phase 2 Phase 2 Phase 1 Phase 1 Phase 1 Phase 3 Phase 3 Phase 3 Phase 4 Phase 4 Phase 4 Phase 5 Phase 5 Phase 5 Phase 6 Phase 6 Phase 6 Can CAN CAN UART UART UART 5V 5V 5V PMBus PMBus PMBus I2C I2C I2C Demo Board Demo Board Demo Board PWM PWM PWM
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