graph LR
subgraph "三相逆变桥下管驱动"
A[MCU PWM信号] --> B[栅极驱动器]
B --> C["VBQF1410 \n U相下管"]
B --> D["VBQF1410 \n V相下管"]
B --> E["VBQF1410 \n W相下管"]
F[DC_BUS"直流母线 \n 24-48V"] --> G[上管开关阵列]
G --> H[U相输出]
G --> I[V相输出]
G --> J[W相输出]
C --> K[U相输出节点]
D --> L[V相输出节点]
E --> M[W相输出节点]
K --> N[电机U相]
L --> O[电机V相]
M --> P[电机W相]
N --> Q[BLDC电机]
O --> Q
P --> Q
C --> R[功率地]
D --> R
E --> R
end
subgraph "保护与检测电路"
S[电流检测电阻] --> T[差分放大器]
T --> U[ADC输入]
U --> A
V[霍尔传感器] --> W[位置解码]
W --> A
X[温度传感器] --> Y[温度监控]
Y --> A
Z[RC吸收网络] --> C
Z --> D
Z --> E
end
style C fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
style D fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
style E fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
VBQD4290AU智能配电拓扑详图
graph TB
subgraph "双通道高侧P-MOS开关"
A[MCU GPIO1] --> B[电平转换]
B --> C["VBQD4290AU \n 通道1栅极"]
A2[MCU GPIO2] --> B2[电平转换]
B2 --> C2["VBQD4290AU \n 通道2栅极"]
subgraph "VBQD4290AU内部结构"
direction LR
GATE1[Gate1]
GATE2[Gate2]
DRAIN1[Drain1]
DRAIN2[Drain2]
SOURCE1[Source1]
SOURCE2[Source2]
end
C --> GATE1
C2 --> GATE2
D[主电源24V] --> DRAIN1
D --> DRAIN2
SOURCE1 --> E[负载通道1]
SOURCE2 --> F[负载通道2]
E --> G[显示屏模块]
F --> H[传感器模块]
G --> I[地]
H --> I
end
subgraph "时序管理与保护"
J[MCU定时器] --> K[上电时序控制]
K --> A
K --> A2
L[电流检测] --> M[过流比较器]
M --> N[故障锁存]
N --> O[关断信号]
O --> C
O --> C2
P[热敏电阻] --> Q[温度监控]
Q --> N
end
subgraph "负载特性"
R[电容性负载] --> E
S[感性负载] --> F
T[续流二极管] --> S
U[RC缓冲] --> R
end
style C fill:#fff3e0,stroke:#ff9800,stroke-width:2px
style C2 fill:#fff3e0,stroke:#ff9800,stroke-width:2px
VBC1307信号控制拓扑详图
graph LR
subgraph "传感器供电开关通道"
A[MCU控制信号] --> B["VBC1307栅极"]
C[12V辅助电源] --> D["VBC1307漏极"]
D --> E["VBC1307源极"]
E --> F[传感器阵列]
F --> G[地]
end
subgraph "PWM风扇控制通道"
H[MCU PWM信号] --> I["VBC1307栅极"]
J[12V辅助电源] --> K["VBC1307漏极"]
K --> L["VBC1307源极"]
L --> M[冷却风扇]
M --> N[地]
end
subgraph "信号路径选择通道"
O[MCU选择信号] --> P["VBC1307栅极"]
Q[信号源1] --> R["VBC1307漏极"]
R --> S["VBC1307源极"]
S --> T[ADC输入]
T --> U[MCU ADC]
end
subgraph "保护与优化"
V[栅极串联电阻] --> B
V --> I
V --> P
W[栅极下拉电阻] --> B
W --> I
W --> P
X[TVS保护] --> E
X --> L
X --> S
Y[局部敷铜散热] --> D
Y --> K
Y --> R
end
style B fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
style I fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
style P fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
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