graph LR
subgraph "主电源输入与转换"
A["电网输入"] --> B["EMI滤波器"]
B --> C["AC-DC转换器 \n 24V/12V输出"]
C --> D["主电源总线"]
end
subgraph "智能电源分配网络"
D --> E["VBA1311 \n 电源开关"]
subgraph E ["VBA1311 SOP8封装"]
direction LR
GATE[栅极]
DRAIN[漏极]
SOURCE[源极]
end
E --> F["DC-DC转换器1 \n 5V核心电源"]
E --> G["DC-DC转换器2 \n 3.3V数字电源"]
E --> H["DC-DC转换器3 \n ±12V模拟电源"]
F --> I["MCU与处理器"]
G --> J["数字逻辑电路"]
H --> K["模拟前端电路"]
end
subgraph "保护与监控"
L["TVS阵列"] --> E
M["电流检测"] --> E
N["温度传感器"] --> O["热管理单元"]
O --> P["降额控制"]
P --> E
end
style E fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
传感器信号通路切换拓扑详图
graph TB
subgraph "多传感器供电选通"
A["5V传感器电源"] --> B["VBA2207供电开关"]
subgraph B ["VBA2207 SOP8封装"]
direction LR
GATE_P[栅极]
DRAIN_P[漏极]
SOURCE_P[源极]
end
B --> C["温度传感器 \n 供电通道"]
B --> D["振动传感器 \n 供电通道"]
B --> E["局部放电传感器 \n 供电通道"]
F["MCU控制逻辑"] --> G["电平转换"]
G --> B
end
subgraph "信号通路切换与保护"
H["温度信号"] --> I["VBA2207信号开关"]
J["振动信号"] --> K["VBA2207信号开关"]
L["局部放电信号"] --> M["VBA2207信号开关"]
subgraph I ["VBA2207作为模拟开关"]
direction LR
GATE_S1[栅极]
DRAIN_S1[漏极]
SOURCE_S1[源极]
end
I --> N["信号调理电路1"]
K --> O["信号调理电路2"]
M --> P["信号调理电路3"]
N --> Q["多路复用器"]
O --> Q
P --> Q
Q --> R["高精度ADC"]
S["保护电路"] --> I
S --> K
S --> M
T["MCU控制"] --> U["开关控制逻辑"]
U --> I
U --> K
U --> M
end
style B fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
style I fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
告警与保护执行驱动拓扑详图
graph LR
subgraph "高可靠性驱动通道"
A["MCU控制信号"] --> B["隔离驱动电路"]
B --> C["栅极驱动芯片"]
C --> D["VBM1151N驱动开关"]
subgraph D ["VBM1151N TO220封装"]
direction LR
GATE_D[栅极]
DRAIN_D[漏极]
SOURCE_D[源极]
end
D --> E["继电器线圈驱动"]
D --> F["声光报警器驱动"]
D --> G["保护执行单元"]
E --> H["继电器触点"]
H --> I["外部控制输出"]
F --> J["报警声光输出"]
G --> K["安全动作执行"]
end
subgraph "保护与吸收网络"
L["24V驱动电源"] --> D
M["RC吸收电路"] --> D
N["续流二极管"] --> E
N --> F
O["TVS保护"] --> C
O --> D
P["电流检测"] --> Q["过流保护"]
Q --> R["故障锁存"]
R --> S["关断信号"]
S --> C
end
subgraph "热管理设计"
T["散热器"] --> D
U["温度传感器"] --> V["热监控"]
V --> W["降额控制"]
W --> C
end
style D fill:#fff3e0,stroke:#ff9800,stroke-width:2px
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