graph LR
subgraph "高压电池输入"
A["高压电池包 \n 400VDC"] --> B["主正继电器"]
A --> C["预充继电器"]
C --> D["预充电阻 \n 100Ω/50W"]
D --> E["直流母线正极"]
B --> E
end
subgraph "高压隔离与保护"
E --> F["直流母线电容"]
F --> G["母线电压检测"]
G --> H["MCU ADC"]
subgraph "隔离开关"
I["VBI165R04 \n 650V/4A \n SOT89"]
end
E --> I
I --> J["逆变桥输入"]
K["隔离驱动"] --> I
L["故障诊断"] --> K
subgraph "保护电路"
M["RC吸收网络"]
N["TVS阵列 \n 650V"]
end
E --> M
M --> O["PE地"]
E --> N
N --> O
end
style I fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
三相逆变桥功率拓扑详图
graph TB
subgraph "三相逆变桥"
HV_DC["高压直流母线"] --> U_BUS["U相桥臂"]
HV_DC --> V_BUS["V相桥臂"]
HV_DC --> W_BUS["W相桥臂"]
subgraph "U相"
UH["高侧开关 \n 80V/56A"]
UL["VBGQF1806 \n 80V/56A \n DFN8"]
end
subgraph "V相"
VH["高侧开关 \n 80V/56A"]
VL["VBGQF1806 \n 80V/56A \n DFN8"]
end
subgraph "W相"
WH["高侧开关 \n 80V/56A"]
WL["VBGQF1806 \n 80V/56A \n DFN8"]
end
U_BUS --> UH
V_BUS --> VH
W_BUS --> WH
UH --> U_OUT["U相输出"]
UL --> U_OUT
VH --> V_OUT["V相输出"]
VL --> V_OUT
WH --> W_OUT["W相输出"]
WL --> W_OUT
UL --> GND
VL --> GND
WL --> GND
end
subgraph "栅极驱动系统"
subgraph "隔离驱动"
DRV_UH["U上桥驱动"]
DRV_VH["V上桥驱动"]
DRV_WH["W上桥驱动"]
end
subgraph "非隔离驱动"
DRV_UL["U下桥驱动"]
DRV_VL["V下桥驱动"]
DRV_WL["W下桥驱动"]
end
CONTROL["PWM控制器"] --> DRV_UH
CONTROL --> DRV_VH
CONTROL --> DRV_WH
CONTROL --> DRV_UL
CONTROL --> DRV_VL
CONTROL --> DRV_WL
DRV_UH --> UH
DRV_VH --> VH
DRV_WH --> WH
DRV_UL --> UL
DRV_VL --> VL
DRV_WL --> WL
end
subgraph "电流检测"
CS_U["U相电流传感器"]
CS_V["V相电流传感器"]
CS_W["W相电流传感器"]
U_OUT --> CS_U
V_OUT --> CS_V
W_OUT --> CS_W
CS_U --> ADC["ADC采集"]
CS_V --> ADC
CS_W --> ADC
ADC --> CONTROL
end
style UL fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
style VL fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
style WL fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
辅助电源与智能负载管理拓扑详图
graph LR
subgraph "辅助电源"
A["12V蓄电池"] --> B["EMI滤波器"]
B --> C["DC-DC转换器"]
subgraph "多路输出"
D["12V/5A \n 功率电源"]
E["5V/2A \n 逻辑电源"]
F["3.3V/1A \n MCU电源"]
end
C --> D
C --> E
C --> F
end
subgraph "智能负载开关矩阵"
subgraph "冷却系统控制"
G["MCU PWM"] --> H["电平转换"]
H --> I["VBC6P2216 \n 双P-MOS \n 冷却水泵"]
J["MCU GPIO"] --> K["电平转换"]
K --> L["VBC6P2216 \n 双P-MOS \n 散热风扇"]
end
subgraph "传感器与通信"
M["MCU GPIO"] --> N["电平转换"]
N --> O["VBC6P2216 \n 双P-MOS \n 传感器组"]
P["MCU GPIO"] --> Q["电平转换"]
Q --> R["VBC6P2216 \n 双P-MOS \n 通信模块"]
end
D --> I
D --> L
E --> O
E --> R
I --> S["液冷泵"]
L --> T["散热风扇"]
O --> U["位置传感器 \n 温度传感器"]
R --> V["CAN收发器"]
end
subgraph "保护与诊断"
subgraph "过流保护"
W["电流检测电阻"]
X["比较器"]
end
subgraph "状态反馈"
Y["开关状态检测"]
Z["故障上报"]
end
S --> W
T --> W
W --> X
X --> MCU_FAULT["MCU故障输入"]
Y --> MCU_GPIO["MCU GPIO输入"]
MCU_FAULT --> Z
MCU_GPIO --> Z
Z --> CAN_BUS["CAN总线"]
end
style I fill:#fff3e0,stroke:#ff9800,stroke-width:2px
style L fill:#fff3e0,stroke:#ff9800,stroke-width:2px
style O fill:#fff3e0,stroke:#ff9800,stroke-width:2px
style R fill:#fff3e0,stroke:#ff9800,stroke-width:2px
热管理与保护电路拓扑详图
graph TB
subgraph "三级热管理"
subgraph "一级热源:液冷散热"
A["逆变桥MOSFET"] --> B["液冷板"]
B --> C["冷却液管道"]
C --> D["液冷泵"]
D --> E["散热器"]
E --> F["冷却风扇"]
end
subgraph "二级热源:PCB敷铜散热"
G["高压隔离开关"] --> H["大面积敷铜"]
H --> I["热过孔阵列"]
I --> J["底层散热层"]
end
subgraph "三级热源:自然对流"
K["负载开关IC"] --> L["局部敷铜"]
L --> M["空气流动"]
M --> N["机箱风道"]
end
subgraph "温度监控"
O["MOSFET温度传感器"] --> P["ADC采集"]
Q["冷却液温度传感器"] --> P
R["环境温度传感器"] --> P
P --> S["温度控制器"]
S --> T["PWM调节"]
T --> D
T --> F
end
end
subgraph "电气保护网络"
subgraph "缓冲与吸收"
U["RC缓冲电路"] --> V["逆变桥上桥臂"]
W["RCD吸收电路"] --> X["逆变桥下桥臂"]
Y["TVS保护阵列"] --> Z["栅极驱动电源"]
end
subgraph "栅极保护"
AA["栅源钳位二极管"] --> AB["VBGQF1806栅极"]
AC["有源米勒钳位"] --> AB
AD["ESD保护器件"] --> AE["MCU GPIO"]
end
subgraph "故障保护"
AF["过流检测比较器"] --> AG["故障锁存"]
AH["过压检测电路"] --> AG
AI["过温检测电路"] --> AG
AG --> AJ["快速关断信号"]
AJ --> V
AJ --> X
end
style A fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
style G fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
style K fill:#fff3e0,stroke:#ff9800,stroke-width:2px
点击下载：VBGQF1806规格书
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