graph LR
subgraph "三相橋式驅動拓撲"
A[直流母線 48V] --> B["VBGQF1402×3 \n 上橋臂"]
A --> C["VBGQF1402×3 \n 下橋臂"]
B --> D[U相輸出]
B --> E[V相輸出]
B --> F[W相輸出]
C --> G[功率地]
D --> H[伺服電機U相]
E --> I[伺服電機V相]
F --> J[伺服電機W相]
end
subgraph "驅動控制與保護"
K[運動控制器] --> L[PWM發生器]
L --> M[柵極驅動器]
M --> B
M --> C
N[電流感測器] --> O[電流環]
O --> L
P[編碼器回饋] --> Q[位置/速度環]
Q --> K
R[過流保護] --> S[故障鎖存]
S --> T[關斷信號]
T --> M
end
subgraph "熱管理與緩衝"
U[散熱骨架] --> B
V[PCB大面積鋪銅] --> C
W[RC緩衝網路] --> D
W --> E
W --> F
end
style B fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
智能負載管理拓撲詳圖
graph TB
subgraph "VBQG5222雙路負載開關通道"
A[MCU GPIO] --> B[電平轉換]
B --> C["VBQG5222 \n 通道1輸入"]
B --> D["VBQG5222 \n 通道2輸入"]
subgraph "雙N+P溝道內部結構"
direction LR
GATE_N[N溝道柵極]
GATE_P[P溝道柵極]
SOURCE_N[N溝道源極]
SOURCE_P[P溝道源極]
DRAIN_N[N溝道漏極]
DRAIN_P[P溝道漏極]
end
C --> GATE_N
D --> GATE_P
VCC_5V[5V電源] --> DRAIN_N
VCC_3V3[3.3V電源] --> DRAIN_P
SOURCE_N --> E[數字負載1]
SOURCE_P --> F[模擬負載2]
E --> G[系統地]
F --> G
end
subgraph "OR-ing電源切換拓撲"
H[主電源 48V] --> I["VBGQF1402 \n 主通路"]
J[備份電源 48V] --> K["VBGQF1402 \n 備份通路"]
I --> L[負載母線]
K --> L
M[電源監控器] --> N[切換控制器]
N --> O[柵極驅動]
O --> I
O --> K
end
subgraph "負載診斷與保護"
P[電流檢測] --> Q[比較器]
R[狀態回饋] --> S[MCU]
Q --> T[故障標誌]
T --> S
S --> U[保護動作]
U --> B
end
style C fill:#fff3e0,stroke:#ff9800,stroke-width:2px
信號採集與保護拓撲詳圖
graph LR
subgraph "感測器信號隔離與切換"
A[壓力感測器] --> B[信號調理]
C[氧氣濃度感測器] --> B
D[溫度感測器] --> B
B --> E[多路複用器]
subgraph "VBR9N2001K保護開關陣列"
direction TB
SW1["VBR9N2001K \n 通道1"]
SW2["VBR9N2001K \n 通道2"]
SW3["VBR9N2001K \n 通道3"]
end
E --> SW1
E --> SW2
E --> SW3
SW1 --> F[MCU ADC1]
SW2 --> G[MCU ADC2]
SW3 --> H[MCU ADC3]
end
subgraph "介面保護電路"
I[感測器介面] --> J[限流電阻]
J --> K[鉗位二極體]
K --> L[電源軌]
K --> M[地]
N[高壓瞬態] --> O[TVS陣列]
O --> P[保護地]
end
subgraph "信號完整性設計"
Q[遮罩雙絞線] --> R[磁環濾波器]
R --> S[差分接收器]
S --> T[隔離放大器]
T --> U[數字隔離器]
U --> V[MCU介面]
end
style SW1 fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
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