graph LR
subgraph "三相全桥逆变拓扑"
A[48V/72V动力母线] --> B["VBPB16R90SE \n 上桥臂U"]
A --> C["VBPB16R90SE \n 上桥臂V"]
A --> D["VBPB16R90SE \n 上桥臂W"]
B --> E[电机U相]
C --> F[电机V相]
D --> G[电机W相]
E --> H["VBPB16R90SE \n 下桥臂U"]
F --> I["VBPB16R90SE \n 下桥臂V"]
G --> J["VBPB16R90SE \n 下桥臂W"]
H --> K[功率地]
I --> K
J --> K
end
subgraph "栅极驱动与保护电路"
L[隔离驱动电源] --> M["隔离栅极驱动器"]
N[PWM控制器] --> M
M --> O["上桥臂驱动信号"]
M --> P["下桥臂驱动信号"]
O --> B
O --> C
O --> D
P --> H
P --> I
P --> J
subgraph "保护网络"
Q["RC吸收电路"]
R["TVS保护"]
S["电流检测"]
end
Q --> B
Q --> C
Q --> D
R --> M
S --> T[比较器]
T --> U[故障锁存]
U --> M
end
subgraph "热管理"
V[散热器基板] --> B
V --> C
V --> D
V --> H
V --> I
V --> J
W[温度传感器] --> X[MCU]
X --> Y[风扇PWM控制]
Y --> Z[强制风冷风扇]
end
style B fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
style H fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
辅助执行机构拓扑详图
graph LR
subgraph "阀组控制通道"
A[24V辅助电源] --> B["VBNC1102N \n 功率开关"]
C[阀控信号] --> D[电平转换]
D --> E[栅极驱动]
E --> B
B --> F[电磁阀线圈]
F --> G[续流二极管]
G --> H[电源地]
I[电流检测] --> J[过流保护]
J --> E
end
subgraph "线性执行器驱动"
K[24V辅助电源] --> L[H桥驱动器]
M[方向控制] --> L
N[PWM速度控制] --> L
subgraph "H桥功率级"
Q1["VBNC1102N \n 左上"]
Q2["VBNC1102N \n 右上"]
Q3["VBNC1102N \n 左下"]
Q4["VBNC1102N \n 右下"]
end
L --> Q1
L --> Q2
L --> Q3
L --> Q4
Q1 --> O[执行器正端]
Q2 --> P[执行器负端]
Q3 --> H
Q4 --> H
O --> LINEAR_MOTOR[直流电机]
P --> LINEAR_MOTOR
end
subgraph "泵驱动电路"
R[24V辅助电源] --> S["VBNC1102N \n 泵开关"]
T[泵控制信号] --> U[驱动电路]
U --> S
S --> V[泵电机]
V --> W[反电动势吸收]
W --> H
end
subgraph "散热设计"
X[TO262散热片] --> B
X --> Q1
X --> Q2
X --> S
Y[温度监控] --> Z[MCU]
end
style B fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
style Q1 fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
style S fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
分布式电源管理拓扑详图
graph LR
subgraph "负载点电源转换"
A[24V辅助输入] --> B[降压控制器]
B --> C["VBQA3405 \n 高侧开关"]
C --> D[电感]
D --> E[输出电容]
E --> F[12V传感器电源]
subgraph "同步整流"
G["VBQA3405 \n 低侧同步整流"]
end
D --> G
G --> H[功率地]
I[反馈网络] --> B
end
subgraph "双路智能配电"
subgraph "VBQA3405双通道"
CH1["通道1: 5V \n ECU供电"]
CH2["通道2: 3.3V \n 通信供电"]
end
J[PMIC控制器] --> CH1
J --> CH2
CH1 --> K[ECU模块群]
CH2 --> L[通信模块群]
M[使能控制] --> J
N[电流检测] --> O[负载监测]
O --> J
end
subgraph "PCB热设计"
P[大面积敷铜层] --> C
P --> G
P --> CH1
P --> CH2
Q[热过孔阵列] --> R[底层散热]
S[温度传感器] --> T[动态调频]
T --> B
T --> J
end
subgraph "保护功能"
U[输入滤波] --> A
V[输出过压保护] --> F
V --> K
V --> L
W[短路保护] --> X[快速关断]
X --> C
X --> G
X --> CH1
X --> CH2
end
style C fill:#fff3e0,stroke:#ff9800,stroke-width:2px
style G fill:#fff3e0,stroke:#ff9800,stroke-width:2px
style CH1 fill:#fff3e0,stroke:#ff9800,stroke-width:2px
点击下载：VBPB16R90SE规格书
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