graph LR
subgraph "传感器激励电源路径"
A["5V系统电源"] --> B["VBC1307 \n 30V/10A"]
B --> C["LDO线性稳压器 \n 低噪声"]
C --> D["精密参考源 \n 2.5V/5V"]
D --> E["传感器桥路 \n 激励电压"]
E --> F["称重传感器 \n 应变片电桥"]
F --> G["仪表放大器 \n INA系列"]
G --> H["24位Σ-Δ ADC"]
H --> I[MCU]
I --> J[GPIO控制]
J --> B
end
subgraph "信号调理与保护"
F --> K["共模抑制电路"]
G --> L["抗混叠滤波器"]
M["TVS阵列"] --> E
N["EMI滤波器"] --> C
end
style B fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
style C fill:#f3e5f5,stroke:#9c27b0,stroke-width:2px
style H fill:#e1f5fe,stroke:#0288d1,stroke-width:2px
微型打印机电机驱动拓扑详图
graph TB
subgraph "H桥电机驱动电路"
A[MCU PWM] --> B[电机控制器]
B --> C["高侧驱动1"]
B --> D["高侧驱动2"]
B --> E["低侧驱动1"]
B --> F["低侧驱动2"]
C --> G["VBB1630 \n 高侧Q1"]
D --> H["VBB1630 \n 高侧Q2"]
E --> I["VBB1630 \n 低侧Q3"]
F --> J["VBB1630 \n 低侧Q4"]
K["24V电源"] --> G
K --> H
G --> L[电机线圈A]
H --> M[电机线圈B]
I --> N[GND]
J --> N
L --> STEPPER_MOTOR["步进电机"]
M --> STEPPER_MOTOR
end
subgraph "保护与缓冲电路"
O["RC缓冲网络"] --> G
O --> H
P["续流二极管"] --> L
P --> M
Q["电流检测电阻"] --> I
Q --> J
R["过流比较器"] --> Q
R --> S[关断信号]
S --> B
end
style G fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
style H fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
style I fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
style J fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
智能负载管理拓扑详图
graph LR
subgraph "双通道负载开关"
A["MCU GPIO1"] --> B["电平转换"]
A2["MCU GPIO2"] --> B2["电平转换"]
B --> C["VBC9216 通道1 \n 输入"]
B2 --> D["VBC9216 通道2 \n 输入"]
E["5V系统电源"] --> F["VBC9216 电源"]
F --> C
F --> D
C --> G[负载1电源]
D --> H[负载2电源]
G --> I[RFID模块]
G --> J[显示屏背光]
H --> K[蓝牙模块]
H --> L[Wi-Fi模块]
I --> M[GND]
J --> M
K --> M
L --> M
end
subgraph "保护与软启动"
N["TVS保护"] --> G
N --> H
O["软启动电容"] --> C
O --> D
P["电流限制"] --> I
P --> K
end
subgraph "智能管理功能"
Q[MCU] --> R[电源时序控制]
Q --> S[负载状态监测]
Q --> T[故障诊断]
R --> B
R --> B2
end
style C fill:#fff3e0,stroke:#ff9800,stroke-width:2px
style D fill:#fff3e0,stroke:#ff9800,stroke-width:2px
style Q fill:#fce4ec,stroke:#e91e63,stroke-width:2px
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