graph LR
subgraph "主电机驱动电路"
A[24V直流输入] --> B[π型滤波器]
B --> C[驱动节点]
C --> D["VBQF1405 \n 40V/40A/DFN8"]
D --> E[主传动电机]
E --> F[功率地]
G[主控MCU] --> H[栅极驱动器]
H --> D
subgraph "保护与检测"
I[电流采样电阻] --> J[运放调理]
J --> G
K["RC缓冲网络 \n 47Ω+1nF"] --> D
L[续流二极管] --> D
M[温度传感器] --> G
end
subgraph "控制策略"
N[编码器反馈] --> O[速度环PI]
P[电流采样] --> Q[电流环PI]
O --> R[PWM生成]
Q --> R
R --> H
end
end
style D fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
style G fill:#fce4ec,stroke:#e91e63,stroke-width:2px
传感器供电管理拓扑详图
graph TB
subgraph "智能负载开关控制"
A[5V辅助电源] --> B[输入滤波]
B --> C[负载开关节点]
subgraph "VB3420双路负载开关"
D["通道1: CIS供电 \n Vgs=5V, Id=3.6A"]
E["通道2: 图像处理 \n Vgs=5V, Id=3.6A"]
end
C --> D
C --> E
D --> F[CIS传感器模块]
E --> G[图像处理器]
F --> H[信号地]
G --> H
subgraph "电源管理逻辑"
I[电源管理MCU] --> J[GPIO控制]
J --> D
J --> E
K[电流监测电路] --> I
L[状态反馈] --> I
end
subgraph "时序控制"
M[点钞启动信号] --> N[电源时序控制器]
N --> O["CIS供电开启 \n (微秒级响应)"]
N --> P["图像处理供电 \n (同步开启)"]
O --> D
P --> E
end
subgraph "滤波与保护"
Q[LC局部滤波] --> F
R[TVS保护] --> F
S[去耦电容阵列] --> G
end
end
style D fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
style E fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
style I fill:#fce4ec,stroke:#e91e63,stroke-width:2px
辅助机构驱动拓扑详图
graph LR
subgraph "钞夹电磁铁驱动"
A[24V电源] --> B[低边开关节点]
B --> C["VBQD7322U \n 30V/9A/DFN8"]
C --> D[钞夹电磁铁]
D --> E[功率地]
F[控制信号] --> G[电平转换]
G --> H[驱动器]
H --> C
subgraph "高边开关应用"
I[24V电源] --> J[高边开关节点]
J --> K["VBQF2658 \n -60V/-11A/DFN8"]
K --> L[释放机构]
M[3.3V GPIO] --> N[PMOS驱动器]
N --> K
end
subgraph "阻尼器驱动"
O[24V电源] --> P[阻尼器节点]
P --> Q["VBQD7322U \n 阻尼器驱动"]
Q --> R[阻尼器线圈]
R --> S[功率地]
T[PWM控制] --> U[驱动器]
U --> Q
end
subgraph "保护电路"
V[续流二极管] --> D
V --> L
V --> R
W[RC缓冲网络] --> C
W --> K
W --> Q
X[过流检测] --> Y[故障信号]
Y --> F
Y --> M
Y --> T
end
style C fill:#fff3e0,stroke:#ff9800,stroke-width:2px
style K fill:#fff3e0,stroke:#ff9800,stroke-width:2px
style Q fill:#fff3e0,stroke:#ff9800,stroke-width:2px
热管理与EMC设计拓扑详图
graph TB
subgraph "三级散热架构"
A["一级散热: PCB敷铜"] --> B["主电机MOSFET \n VBQF1405"]
C["二级散热: 内部风道"] --> D["辅助驱动MOSFET \n VBQD7322U/VBQF2658"]
E["三级散热: 自然对流"] --> F["控制芯片 \n MCU/驱动器"]
subgraph "温度监控"
G["NTC温度传感器"] --> H["温度采集电路"]
H --> I[散热管理MCU]
end
subgraph "主动散热控制"
I --> J[风扇PWM控制]
J --> K[系统冷却风扇]
I --> L[散热策略选择]
L --> M["根据负载调整 \n 风扇转速"]
end
end
subgraph "EMC设计要点"
subgraph "传导EMI抑制"
N[输入π型滤波器] --> O[电机驱动回路]
P[Kelvin源极布局] --> Q[最小驱动回路]
R[栅极电阻调整] --> S[缓启缓降波形]
end
subgraph "辐射EMI对策"
T[电机屏蔽线] --> U[紧贴金属机壳]
V[敏感线路屏蔽] --> W[图像传感器供电]
X[接地优化] --> Y[低阻抗接地平面]
end
subgraph "可靠性增强"
Z["热应力保护 \n Tj<95℃"] --> AA[降额设计]
AB["电气应力保护 \n 过冲<15%"] --> AC[缓冲网络]
AD["故障诊断 \n 电流/温度监测"] --> AE[预警机制]
end
end
style B fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
style D fill:#fff3e0,stroke:#ff9800,stroke-width:2px
style F fill:#fce4ec,stroke:#e91e63,stroke-width:2px
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