graph LR
subgraph "高压配电单元(PDU)"
A["高压电池包 \n 400-800VDC"] --> B["主接触器"]
B --> C["预充电电路"]
C --> D["VBP165C30-4L \n 主开关"]
D --> E["高压直流母线"]
F["PDU控制器"] --> G["SiC栅极驱动器"]
G --> D
E -->|电压反馈| F
end
subgraph "双向隔离DC-DC转换器"
E --> H["全桥/半桥拓扑"]
H --> I["高频变压器"]
I --> J["同步整流"]
J --> K["低压直流输出 \n 12/24VDC"]
subgraph "DC-DC功率器件"
Q_PRIMARY["VBP165C30-4L \n 初级侧开关"]
Q_SECONDARY["VBP165C30-4L \n 次级侧开关"]
end
H --> Q_PRIMARY
J --> Q_SECONDARY
L["DC-DC控制器"] --> M["双通道驱动器"]
M --> Q_PRIMARY
M --> Q_SECONDARY
K -->|电流反馈| L
end
subgraph "智能预充与保护"
N["预充电阻"] --> O["预充接触器"]
P["电压传感器"] --> Q["比较器"]
Q --> R["预充完成信号"]
R --> S["主接触器闭合"]
T["过流检测"] --> U["故障保护"]
U --> V["快速关断"]
V --> D
end
style D fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
style Q_PRIMARY fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
主驱逆变器拓扑详图
graph TB
subgraph "三相逆变桥拓扑"
A["高压直流母线"] --> B["直流母线电容"]
B --> C["U相上桥"]
B --> D["V相上桥"]
B --> E["W相上桥"]
subgraph "上桥臂功率器件"
Q_UH["VBMB16I20 \n U上桥"]
Q_VH["VBMB16I20 \n V上桥"]
Q_WH["VBMB16I20 \n W上桥"]
end
C --> Q_UH
D --> Q_VH
E --> Q_WH
Q_UH --> F["U相输出"]
Q_VH --> G["V相输出"]
Q_WH --> H["W相输出"]
subgraph "下桥臂功率器件"
Q_UL["VBMB16I20 \n U下桥"]
Q_VL["VBMB16I20 \n V下桥"]
Q_WL["VBMB16I20 \n W下桥"]
end
F --> Q_UL
G --> Q_VL
H --> Q_WL
Q_UL --> I["直流母线负"]
Q_VL --> I
Q_WL --> I
end
subgraph "栅极驱动与保护"
J["电机控制器"] --> K["三相PWM"]
K --> L["栅极驱动芯片"]
L --> M["上桥驱动"]
L --> N["下桥驱动"]
M --> Q_UH
N --> Q_UL
subgraph "驱动电源"
O["自举电路"] --> M
P["隔离电源"] --> N
end
subgraph "保护电路"
Q["过流检测"] --> R["DESAT保护"]
S["温度检测"] --> T["过温保护"]
U["欠压锁定"] --> V["故障输出"]
R --> W["故障关断"]
T --> W
V --> W
W --> L
end
end
subgraph "电流与位置检测"
X["相电流传感器"] --> Y["ADC采样"]
Z["旋转变压器"] --> AA["解码电路"]
Y --> J
AA --> J
end
style Q_UH fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
style Q_UL fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
辅助系统智能配电拓扑详图
graph LR
subgraph "双N沟道智能开关通道"
A["辅助控制器 \n MCU GPIO"] --> B["电平转换电路"]
B --> C["VBQA3615 使能"]
subgraph D ["VBQA3615 内部结构"]
direction LR
GATE1[栅极1]
GATE2[栅极2]
DRAIN1[漏极1]
DRAIN2[漏极2]
SOURCE1[源极1]
SOURCE2[源极2]
end
C --> GATE1
C --> GATE2
E["12/24V电源"] --> DRAIN1
E --> DRAIN2
SOURCE1 --> F["负载1"]
SOURCE2 --> G["负载2"]
F --> H["接地"]
G --> H
end
subgraph "多通道负载管理"
I["辅助系统控制器"] --> J["CAN通信接口"]
J --> K["多路开关控制"]
subgraph "负载开关阵列"
SW1["VBQA3615 \n 通道1"]
SW2["VBQA3615 \n 通道2"]
SW3["VBQA3615 \n 通道3"]
SW4["VBQA3615 \n 通道4"]
SW5["VBQA3615 \n 通道5"]
SW6["VBQA3615 \n 通道6"]
end
K --> SW1
K --> SW2
K --> SW3
K --> SW4
K --> SW5
K --> SW6
SW1 --> L["液压泵电机"]
SW2 --> M["照明矩阵"]
SW3 --> N["散热风扇"]
SW4 --> O["警示系统"]
SW5 --> P["作业机构"]
SW6 --> Q["通信设备"]
end
subgraph "电流监测与保护"
R["高侧电流检测"] --> S["ADC采样"]
T["低侧电流检测"] --> S
S --> U["过流比较器"]
U --> V["故障指示"]
V --> W["自动关断"]
W --> SW1
subgraph "感性负载保护"
X["续流二极管"] --> L
Y["TVS阵列"] --> M
end
end
style SW1 fill:#fff3e0,stroke:#ff9800,stroke-width:2px
style D fill:#fff3e0,stroke:#ff9800,stroke-width:2px
热管理与保护电路拓扑详图
graph TB
subgraph "三级热管理架构"
subgraph "一级热管理:液冷系统"
A["液冷板"] --> B["冷却液循环"]
B --> C["主驱IGBT模块"]
B --> D["SiC MOSFET模块"]
E["温度传感器"] --> F["热管理控制器"]
F --> G["液冷泵PWM控制"]
G --> H["变量液冷泵"]
end
subgraph "二级热管理:强制风冷"
I["散热器风道"] --> J["初级侧功率器件"]
K["温度传感器"] --> L["风扇控制器"]
L --> M["风扇PWM调节"]
M --> N["高速冷却风扇"]
N --> I
end
subgraph "三级热管理:PCB导热"
O["PCB功率层"] --> P["VBQA3615开关芯片"]
Q["过孔阵列"] --> R["背面铜层散热"]
S["环境温度传感器"] --> T["自然对流优化"]
end
subgraph "热监控网络"
U["多点温度监测"] --> V["热模型计算"]
W["结温估算"] --> X["降额控制"]
X --> Y["功率限制"]
Y --> C
Y --> D
end
end
subgraph "电气保护网络"
subgraph "缓冲与吸收电路"
Z1["RCD缓冲电路"] --> C
Z2["RC吸收电路"] --> D
Z3["TVS保护阵列"] --> AA["栅极驱动芯片"]
end
subgraph "故障检测与保护"
AB["电流传感器"] --> AC["快速比较器"]
AD["电压传感器"] --> AE["过压检测"]
AF["温度传感器"] --> AG["过温检测"]
AC --> AH["故障锁存"]
AE --> AH
AG --> AH
AH --> AI["快速关断"]
AI --> C
AI --> D
end
subgraph "安全互锁"
AJ["互锁开关"] --> AK["安全回路"]
AL["紧急停止"] --> AM["硬线关断"]
AM --> AN["所有功率器件"]
end
end
style C fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
style D fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
style P fill:#fff3e0,stroke:#ff9800,stroke-width:2px
点击下载：VBP165C30-4L规格书
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