graph LR
subgraph "三相直流无刷电机驱动"
A[24V驱动总线] --> B["VBQF1303 \n U相"]
A --> C["VBQF1303 \n V相"]
A --> D["VBQF1303 \n W相"]
B --> E[电机U相]
C --> F[电机V相]
D --> G[电机W相]
E --> H[直流无刷电机]
F --> H
G --> H
I[栅极驱动器] --> B
I --> C
I --> D
J[MCU/PWM] --> I
K[电流检测] --> L[运放调理]
L --> J
end
subgraph "流体泵控制系统"
M[24V主总线] --> N["VBQF1303 \n 泵控制"]
N --> O[泵电机]
P[泵控制器] --> Q[驱动器]
Q --> N
R[流量传感器] --> P
end
subgraph "热管理与布局"
S[PCB背面焊盘] --> T[散热过孔阵列]
T --> U[底层散热平面]
V[金属支架] --> U
W[2oz厚铜设计] --> T
style B fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
style N fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
消毒模块电源管理详细拓扑
graph TB
subgraph "紫外消毒模块控制"
A[24V消毒总线] --> B["VBQF2625 \n 高压开关"]
B --> C[升压变压器]
C --> D[紫外灯管]
E[隔离驱动器] --> B
F[消毒控制器] --> E
G[位置传感器] --> F
H[安全互锁] --> F
I[高压隔离] --> D
end
subgraph "等离子消毒模块控制"
J[24V消毒总线] --> K["VBQF2625 \n 等离子开关"]
K --> L[等离子发生器]
M[驱动器] --> K
N[控制器] --> M
O[浓度传感器] --> N
end
subgraph "安全隔离设计"
P[低压控制区] --> Q[光耦隔离]
P --> R[隔离电源]
Q --> S[高压功率区]
R --> S
T[故障检测] --> U[安全关断]
U --> B
U --> K
end
style B fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
style K fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
智能电源分配与信号管理拓扑
graph LR
subgraph "双路信号开关内部结构"
A["VBTA32S3M"]
subgraph A ["双N沟道MOSFET"]
direction TB
GATE1[栅极1]
GATE2[栅极2]
DRAIN1[漏极1]
DRAIN2[漏极2]
SOURCE1[源极1]
SOURCE2[源极2]
end
end
subgraph "传感器电源管理"
B[3.3V辅助电源] --> C["VBTA32S3M \n 通道1"]
B --> D["VBTA32S3M \n 通道2"]
C --> E[TOF避障传感器]
D --> F[光学消毒传感器]
G[MCU GPIO1] --> H[电平转换]
H --> GATE1
I[MCU GPIO2] --> J[电平转换]
J --> GATE2
SOURCE1 --> K[地]
SOURCE2 --> K
end
subgraph "安全与通信电源管理"
L[5V安全电源] --> M["VBTA32S3M \n 通道1"]
L --> N["VBTA32S3M \n 通道2"]
M --> O[安全逻辑电路]
N --> P[通信模块]
Q[状态回读] --> R[MCU ADC]
end
subgraph "诊断与监控"
S[诊断接口电源] --> T["VBTA32S3M"]
T --> U[诊断接口]
V[电流监测] --> W[高边检测]
W --> X[故障标志]
X --> Y[MCU中断]
end
style A fill:#fff3e0,stroke:#ff9800,stroke-width:2px
保护电路与热管理拓扑详图
graph TB
subgraph "三级热管理系统"
A["一级:主动散热"] --> B["金属支架/铜筏"]
B --> C["主驱MOSFET背面焊盘"]
D["二级:被动散热"] --> E["内部屏蔽罩"]
E --> F["消毒MOSFET敷铜"]
G["三级:自然散热"] --> H["PCB大面积敷铜"]
H --> I["信号开关IC"]
J["温度传感器网络"] --> K["NTC阵列"]
K --> L["热管理MCU"]
L --> M["风扇PWM输出"]
L --> N["报警阈值"]
end
subgraph "电气保护网络"
O["TVS吸收阵列"] --> P["电机驱动端"]
O --> Q["消毒模块输出"]
R["栅极保护电路"] --> S["18V稳压管"]
S --> T["栅极下拉电阻"]
U["电流检测网络"] --> V["采样电阻"]
V --> W["运放调理电路"]
W --> X["比较器"]
X --> Y["故障锁存器"]
Y --> Z["关断信号"]
Z --> P
Z --> Q
end
subgraph "EMC设计与布局"
AA["π型滤波器"] --> AB["24V输入端"]
AC["最小开关回路"] --> AD["功率MOSFET布局"]
AE["屏蔽线缆"] --> AF["电机与消毒连线"]
AG["栅极串联电阻"] --> AH["开关速度控制"]
AI["功率地平面"] --> AJ["单点接地"]
end
style C fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
style F fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
style I fill:#fff3e0,stroke:#ff9800,stroke-width:2px
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