graph LR
subgraph "三相逆变桥与电机驱动"
A[高压直流母线540VDC] --> B[直流母线电容]
B --> C[三相逆变桥开关节点]
subgraph "三相桥臂(每相两管)"
direction TB
U_H["VBP18R47S(上管)"]
U_L["VBP18R47S(下管)"]
V_H["VBP18R47S(上管)"]
V_L["VBP18R47S(下管)"]
W_H["VBP18R47S(上管)"]
W_L["VBP18R47S(下管)"]
end
C --> U_H
C --> V_H
C --> W_H
U_H --> D[U相输出]
V_H --> E[V相输出]
W_H --> F[W相输出]
U_L --> G[功率地]
V_L --> G
W_L --> G
D --> H[三相永磁同步电机]
E --> H
F --> H
end
subgraph "隔离栅极驱动与保护"
I[电机控制MCU] --> J[隔离驱动芯片]
J --> K[高压侧驱动电源]
K --> U_H
K --> V_H
K --> W_H
I --> L[低压侧驱动]
L --> U_L
L --> V_L
L --> W_L
subgraph "缓冲与保护电路"
M["RC缓冲网络"]
N["TVS吸收阵列"]
O["直流母线过压保护"]
end
M --> C
N --> U_H
N --> V_H
N --> W_H
O --> P[故障信号]
P --> I
end
style U_H fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
style U_L fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
低压大电流配电与负载管理拓扑详图
graph LR
subgraph "低压主配电架构"
A[24V/48V电池] --> B[输入滤波电容]
B --> C[主配电开关节点]
subgraph "智能负载开关阵列"
D["VBL2406 \n 通道1"]
E["VBL2406 \n 通道2"]
F["VBL2406 \n 通道3"]
G["VBL2406 \n 通道4"]
end
C --> D
C --> E
C --> F
C --> G
D --> H[传感器集群 \n 12V/5A]
E --> I[主控制器 \n 5V/10A]
F --> J[伺服阀/辅助电机 \n 24V/20A]
G --> K[通信模块 \n 12V/2A]
H --> L[系统地]
I --> L
J --> L
K --> L
end
subgraph "P-MOS驱动与保护"
M[MCU GPIO] --> N[电平转换电路]
N --> O[栅极驱动电压]
O --> D
O --> E
O --> F
O --> G
subgraph "电流检测与保护"
P["毫欧级采样电阻"]
Q["高速比较器"]
R["过流保护锁存"]
end
P --> S[负载电流信号]
S --> Q
Q --> R
R --> T[关断信号]
T --> N
end
subgraph "热管理设计"
U[大面积PCB敷铜] --> D
U --> E
V[独立散热片] --> F
V --> G
W[温度传感器] --> X[热监控MCU]
X --> Y[负载降额控制]
Y --> M
end
style D fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
style E fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
高密度POL转换与核心供电拓扑详图
graph LR
subgraph "同步Buck POL转换器"
A[12V/24V输入] --> B[输入滤波电容]
B --> C[开关节点]
subgraph "同步整流MOSFET对"
D["VBQF1320(上管)"]
E["VBQF1320(下管)"]
end
C --> D
C --> F[功率电感]
F --> G[输出滤波电容]
G --> H[POL输出 \n 1.2V-12V]
E --> I[功率地]
subgraph "POL控制器"
J[高频PWM控制器] --> K[上管驱动器]
J --> L[下管驱动器]
end
K --> D
L --> E
H --> M[电压反馈]
M --> J
end
subgraph "多路POL并联与均流"
subgraph "CPU核心供电(多相)"
N["VBQF1320×4 \n 并联"]
O["功率电感×4"]
P["输出电容阵"]
end
N --> O
O --> P
P --> Q[CPU核心 \n 1.2V/30A]
subgraph "FPGA供电"
R["VBQF1320×2 \n 并联"]
S["功率电感×2"]
T["输出电容阵"]
end
R --> S
S --> T
T --> U[FPGA核心 \n 1.8V/20A]
end
subgraph "布局与热管理"
V[紧凑布局] --> D
V --> E
V --> N
V --> R
W[多层PCB内部铜层] --> X[散热过孔阵列]
X --> Y[热扩散]
Z[温度监控] --> AA[动态频率控制]
AA --> J
end
style D fill:#fff3e0,stroke:#ff9800,stroke-width:2px
style E fill:#fff3e0,stroke:#ff9800,stroke-width:2px
点击下载：VBP18R47S规格书
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