graph LR
subgraph "三相逆变桥拓扑"
A[高压直流母线] --> B[上桥臂]
A --> C[下桥臂]
subgraph B ["上桥臂MOSFET"]
direction LR
U1["VBP165C93-4L \n SiC MOSFET \n 650V/93A"]
V1["VBP165C93-4L \n SiC MOSFET \n 650V/93A"]
W1["VBP165C93-4L \n SiC MOSFET \n 650V/93A"]
end
subgraph C ["下桥臂MOSFET"]
direction LR
U2["VBP165C93-4L \n SiC MOSFET \n 650V/93A"]
V2["VBP165C93-4L \n SiC MOSFET \n 650V/93A"]
W2["VBP165C93-4L \n SiC MOSFET \n 650V/93A"]
end
U1 --> D[U相输出]
U2 --> D
V1 --> E[V相输出]
V2 --> E
W1 --> F[W相输出]
W2 --> F
end
subgraph "SiC专用驱动电路"
G[MCU PWM输出] --> H[数字隔离器]
H --> I[SiC专用驱动芯片]
I --> J[负压关断电路]
I --> K[米勒钳位电路]
J --> U1
J --> V1
J --> W1
J --> U2
J --> V2
J --> W2
K --> U1
K --> V1
K --> W1
K --> U2
K --> V2
K --> W2
end
subgraph "保护电路"
L[电流传感器] --> M[比较器]
N[电压传感器] --> O[比较器]
P[温度传感器] --> Q[比较器]
M --> R[故障锁存]
O --> R
Q --> R
R --> S[快速关断]
S --> I
end
D --> T[主循环泵电机]
E --> T
F --> T
D --> U[冷却风机电机]
E --> U
F --> U
style U1 fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
style U2 fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
燃料阀与导叶执行器控制拓扑详图
graph TB
subgraph "H桥驱动拓扑(燃料阀控制)"
A[24V/48V DC总线] --> B[上桥臂左]
A --> C[上桥臂右]
subgraph "H桥功率级"
B --> D["VBPB1202N \n N-MOSFET \n 200V/96A"]
C --> E["VBPB1202N \n N-MOSFET \n 200V/96A"]
F["VBPB1202N \n N-MOSFET \n 200V/96A"] --> G[输出节点左]
H["VBPB1202N \n N-MOSFET \n 200V/96A"] --> I[输出节点右]
G --> J[燃料阀执行器]
I --> J
end
D --> G
E --> I
end
subgraph "高速驱动电路"
K[MCU控制信号] --> L[高速光耦隔离]
L --> M[栅极驱动IC]
M --> N[上桥驱动]
M --> O[下桥驱动]
N --> D
N --> E
O --> F
O --> H
end
subgraph "电流检测与保护"
P[电流采样电阻] --> Q[差分放大器]
Q --> R[ADC输入]
R --> S[MCU过流检测]
T[硬件比较器] --> U[快速关断]
S --> V[软件保护]
U --> M
V --> M
end
subgraph "热管理设计"
W[TO3P封装] --> D
W --> E
W --> F
W --> H
X[强制风冷散热器] --> W
Y[温度传感器] --> Z[MCU温度监控]
Z --> AA[风扇控制]
end
style D fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
style E fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
辅助电源与接口保护拓扑详图
graph LR
subgraph "电源路径开关拓扑"
A[24V辅助电源] --> B[VBA5104N \n N+P MOSFET]
B --> C[传感器电源总线]
D[12V辅助电源] --> E[VBA5104N \n N+P MOSFET]
E --> F[控制电路电源总线]
G[5V辅助电源] --> H[VBA5104N \n N+P MOSFET]
H --> I[通信接口电源]
end
subgraph "双MOSFET内部结构"
subgraph B ["VBA5104N内部"]
direction TB
BN["N-MOSFET \n 100V/6.3A"]
BP["P-MOSFET \n -100V/-5.2A"]
end
subgraph E ["VBA5104N内部"]
direction TB
EN["N-MOSFET \n 100V/6.3A"]
EP["P-MOSFET \n -100V/-5.2A"]
end
subgraph H ["VBA5104N内部"]
direction TB
HN["N-MOSFET \n 100V/6.3A"]
HP["P-MOSFET \n -100V/-5.2A"]
end
end
subgraph "逻辑控制与驱动"
J[MCU GPIO] --> K[电平转换电路]
K --> BN_G[BN栅极]
K --> BP_G[BP栅极]
K --> EN_G[EN栅极]
K --> EP_G[EP栅极]
K --> HN_G[HN栅极]
K --> HP_G[HP栅极]
end
subgraph "过压与反接保护"
L[TVS二极管阵列] --> C
L --> F
L --> I
M[肖特基二极管] --> C
M --> F
M --> I
N[自恢复保险丝] --> C
N --> F
N --> I
end
subgraph "传感器接口保护"
O[压力传感器] --> P[信号调理]
Q[温度传感器] --> R[信号隔离]
S[位置传感器] --> T[信号转换]
P --> U[ADC输入]
R --> U
T --> U
end
C --> O
C --> Q
C --> S
F --> P
F --> R
F --> T
I --> COMM["CAN/RS485接口"]
style B fill:#fff3e0,stroke:#ff9800,stroke-width:2px
style E fill:#fff3e0,stroke:#ff9800,stroke-width:2px
点击下载：VBP165C93-4L规格书
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