graph LR
subgraph "高壓隔離DC-DC變換器"
A["高壓直流母線 \n 72V/96V"] --> B["輸入濾波"]
B --> C["隔離變壓器 \n 初級"]
C --> D["開關節點"]
subgraph "高壓開關MOSFET"
Q1["VBP185R50SFD \n 850V/50A"]
Q2["VBP185R50SFD \n 850V/50A"]
end
D --> Q1
D --> Q2
Q1 --> E["初級地"]
Q2 --> E
C --> F["隔離變壓器 \n 次級"]
F --> G["整流濾波"]
G --> H["低壓直流輸出 \n 24V/48V"]
I["PWM控制器"] --> J["隔離柵極驅動器"]
J --> Q1
J --> Q2
end
subgraph "制動能量回收電路"
K["電機三相輸入"] --> L["三相整流橋"]
L --> M["直流母線"]
M --> N["制動控制信號"]
N --> O["制動控制器"]
subgraph "能量回收開關"
P["VBP185R50SFD \n 850V/50A"]
end
O --> Q["驅動電路"]
Q --> P
P --> R["充電管理"]
R --> S["電池組"]
end
style Q1 fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
style P fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
低壓大電流電機驅動拓撲詳圖
graph TB
subgraph "三相電機驅動逆變橋"
A["低壓直流母線 \n 24V/48V"] --> B["輸入電容"]
B --> C["上橋臂開關"]
C --> D["電機U相"]
subgraph "下橋臂MOSFET陣列"
Q_U["VBQF1405 \n 40V/40A"]
Q_V["VBQF1405 \n 40V/40A"]
Q_W["VBQF1405 \n 40V/40A"]
end
D --> Q_U
Q_U --> E["功率地"]
F["電機V相"] --> Q_V
Q_V --> E
G["電機W相"] --> Q_W
Q_W --> E
subgraph "電機預驅動器"
H["電機控制MCU"] --> I["三相預驅晶片"]
I --> J["下橋臂驅動器"]
end
J --> Q_U
J --> Q_V
J --> Q_W
end
subgraph "電流檢測與保護"
K["電流採樣電阻"] --> L["運放調理電路"]
L --> M["ADC輸入"]
M --> H
N["過流比較器"] --> O["故障信號"]
O --> P["關斷邏輯"]
P --> Q_U
P --> Q_V
P --> Q_W
end
subgraph "散熱設計"
Q["PCB頂層敷銅"] --> Q_U
R["散熱過孔陣列"] --> S["底層敷銅"]
T["溫度感測器"] --> H
end
style Q_U fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
style Q_V fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
style Q_W fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
分佈式智能配電與保護拓撲詳圖
graph LR
subgraph "雙路P-MOS智能負載開關"
A["MCU GPIO"] --> B["電平轉換電路"]
B --> C["VBA4317A 柵極1"]
B --> D["VBA4317A 柵極2"]
subgraph "VBA4317A雙P-MOS內部結構"
direction TB
GATE1[柵極1]
GATE2[柵極2]
SOURCE1[源極1]
SOURCE2[源極2]
DRAIN1[漏極1]
DRAIN2[漏極2]
end
C --> GATE1
D --> GATE2
E["24V輔助電源"] --> DRAIN1
E --> DRAIN2
SOURCE1 --> F["負載1 \n (感測器)"]
SOURCE2 --> G["負載2 \n (照明)"]
F --> H["負載地"]
G --> H
end
subgraph "多路配電通道擴展"
subgraph "開關陣列1"
SW1["VBA4317A"]
SW2["VBA4317A"]
end
subgraph "開關陣列2"
SW3["VBA4317A"]
SW4["VBA4317A"]
end
I["MCU I2C"] --> J["IO擴展器"]
J --> SW1
J --> SW2
J --> SW3
J --> SW4
SW1 --> K["電磁閥組"]
SW2 --> L["通信模組"]
SW3 --> M["顯示幕"]
SW4 --> N["報警裝置"]
end
subgraph "保護電路"
O["自恢復保險絲"] --> P["負載輸出"]
Q["TVS二極體"] --> R["電源輸入"]
S["RC濾波"] --> T["柵極引腳"]
U["電流檢測"] --> V["比較器"]
V --> W["故障回饋"]
W --> A
end
style GATE1 fill:#fff3e0,stroke:#ff9800,stroke-width:2px
style SW1 fill:#fff3e0,stroke:#ff9800,stroke-width:2px
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