graph LR
subgraph "單相半橋結構"
A["24V/48V直流母線"] --> B["VBQF1302(上管) \n Rds(on)=2mΩ"]
B --> C["電機相線輸出"]
C --> D["VBQF1302(下管) \n Rds(on)=2mΩ"]
D --> E["功率地"]
end
subgraph "三相全橋驅動"
F["U相上管"] --> G["U相輸出"]
H["U相下管"] --> I["功率地"]
J["V相上管"] --> K["V相輸出"]
L["V相下管"] --> M["功率地"]
N["W相上管"] --> O["W相輸出"]
P["W相下管"] --> Q["功率地"]
end
subgraph "驅動與控制"
R["PWM控制器"] --> S["三相預驅晶片"]
S --> F
S --> H
S --> J
S --> L
S --> N
S --> P
T["電流採樣"] --> U["ADC介面"]
U --> R
V["位置回饋"] --> W["編碼器介面"]
W --> R
end
style B fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
style D fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
style F fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
智能負載管理詳細拓撲
graph TB
subgraph "雙路負載開關通道"
A["12V輔助電源"] --> B["VBC9216-通道1 \n 12mΩ @4.5V"]
A --> C["VBC9216-通道2 \n 12mΩ @4.5V"]
subgraph B ["VBC9216內部結構"]
direction LR
IN1[柵極1]
S1[源極1]
D1[漏極1]
end
subgraph C ["VBC9216內部結構"]
direction LR
IN2[柵極2]
S2[源極2]
D2[漏極2]
end
MCU["主控MCU \n GPIO(3.3V)"] --> LEVEL_SHIFT["電平轉換"]
LEVEL_SHIFT --> IN1
LEVEL_SHIFT --> IN2
D1 --> LOAD1["視覺相機#1 \n 5V/2A"]
D2 --> LOAD2["視覺相機#2 \n 5V/2A"]
LOAD1 --> GND["地"]
LOAD2 --> GND
end
subgraph "獨立負載開關"
E["MCU GPIO"] --> F["VB1240B \n 20mΩ @4.5V"]
POWER["24V電源"] --> F
F --> LOAD3["LED環形燈 \n 24V/1.5A"]
LOAD3 --> GND2["地"]
end
subgraph "保護與濾波"
LOAD1 --> FILTER1["LC濾波器"]
LOAD2 --> FILTER2["LC濾波器"]
LOAD3 --> FILTER3["RC吸收"]
GATE_PROTECT["ESD保護"] --> LEVEL_SHIFT
GATE_PROTECT --> E
end
style B fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
style C fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
style F fill:#fff3e0,stroke:#ff9800,stroke-width:2px
安全回路與熱管理拓撲
graph LR
subgraph "安全制動回路"
A["安全控制器"] --> B["光耦隔離"]
B --> C["VB1240B \n 刹車開關"]
D["24V電源"] --> C
C --> E["電機刹車線圈"]
E --> F["續流二極體"]
F --> G["地"]
E --> H["動態制動電阻"]
end
subgraph "熱管理系統"
I["溫度感測器1 \n VBQF1302結溫"] --> J["ADC採集"]
K["溫度感測器2 \n 散熱器溫度"] --> J
L["溫度感測器3 \n 環境溫度"] --> J
J --> MCU["主控MCU"]
MCU --> M["PWM控制演算法"]
M --> N["風扇驅動電路"]
N --> O["散熱風扇"]
MCU --> P["電流限幅演算法"]
P --> Q["伺服驅動器"]
end
subgraph "故障保護網路"
R["過流檢測"] --> S["比較器"]
T["過溫檢測"] --> S
U["短路檢測"] --> S
S --> V["故障鎖存"]
V --> W["關斷信號"]
W --> X["所有柵極驅動器"]
W --> Y["安全繼電器"]
end
style C fill:#fff3e0,stroke:#ff9800,stroke-width:2px
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