graph TB
subgraph "高压H桥电机驱动"
A["高压直流母线 \n 540VDC"] --> B["上桥臂开关节点"]
B --> C["VBM165R12 \n 650V/12A"]
C --> D["电机U相输出"]
E["高压直流母线 \n 540VDC"] --> F["上桥臂开关节点"]
F --> G["VBM165R12 \n 650V/12A"]
G --> H["电机V相输出"]
I["下桥臂驱动"] --> J["VBM165R12 \n 650V/12A"]
J --> K["电机W相输出"]
L["下桥臂驱动"] --> M["VBM165R12 \n 650V/12A"]
M --> N["电机公共端"]
O["隔离驱动芯片 \n ISO5852S"] --> P["栅极驱动器"]
P --> C
P --> G
P --> J
P --> M
end
subgraph "保护与缓冲网络"
Q["RC吸收网络 \n 100Ω+1nF"] --> C
R["RC吸收网络 \n 100Ω+1nF"] --> G
S["米勒钳位电路"] --> P
T["18V栅极钳位 \n 稳压管"] --> C
end
subgraph "电流检测与保护"
U["霍尔电流传感器"] --> V["电机相电流"]
W["采样电阻"] --> X["下桥臂电流"]
Y["快速比较器"] --> Z["过流保护"]
Z --> AA["驱动关断信号"]
AA --> O
end
style C fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
辅助执行器与加热控制拓扑详图 (场景2)
graph LR
subgraph "PWM加热控制"
A["24V辅助电源"] --> B["PWM控制器"]
B --> C["栅极驱动IC \n IRS21844"]
C --> D["VBM1201M \n 200V/30A"]
D --> E["加热器负载"]
F["电流检测"] --> G["PID控制器"]
G --> B
H["温度传感器"] --> I["AI算法"]
I --> B
end
subgraph "电磁阀驱动电路"
J["48V辅助电源"] --> K["电平转换器"]
K --> L["非隔离驱动器"]
L --> M["VBM1201M \n 200V/30A"]
M --> N["电磁阀线圈"]
O["续流二极管"] --> M
P["RC吸收网络"] --> M
end
subgraph "多通道控制"
Q["MCU PWM输出"] --> R["多路复用器"]
R --> S["通道1: VBM1201M"]
R --> T["通道2: VBM1201M"]
R --> U["通道3: VBM1201M"]
S --> V["执行器1"]
T --> W["执行器2"]
U --> X["执行器3"]
end
style D fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
style M fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
隔离电源与传感器供电拓扑详图 (场景3)
graph TB
subgraph "同步Buck变换器"
A["24V输入"] --> B["控制IC PWM"]
B --> C["上管驱动"]
C --> D["高侧MOSFET"]
D --> E["开关节点"]
E --> F["VBA1307 \n 同步下管 \n 30V/13A"]
F --> G["输出电感"]
G --> H["输出电容"]
H --> I["5V隔离输出"]
J["反馈网络"] --> B
end
subgraph "PCB散热设计"
K["VBA1307 SOP8"] --> L["大面积铜箔 \n >200mm²"]
L --> M["散热过孔阵列"]
M --> N["内层接地层"]
O["导热硅脂"] --> P["铝基板"]
end
subgraph "多路隔离输出"
Q["反激变换器"] --> R["变压器隔离"]
R --> S["同步整流"]
S --> T["VBA1307"]
T --> U["12V隔离输出"]
V["光耦隔离"] --> W["反馈信号"]
W --> Q
end
subgraph "传感器供电网络"
X["隔离5V"] --> Y["LDO稳压器"]
Y --> Z["3.3V传感器供电"]
AA["隔离12V"] --> BB["4-20mA变送器"]
BB --> CC["压力/温度传感器"]
end
style F fill:#fff3e0,stroke:#ff9800,stroke-width:2px
style T fill:#fff3e0,stroke:#ff9800,stroke-width:2px
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