graph LR
subgraph "三相逆變橋下橋臂"
A["48V電池輸入"] --> B["直流母線電容"]
B --> C["U相下橋"]
B --> D["V相下橋"]
B --> E["W相下橋"]
C --> F["VBGM1803 \n 80V/180A"]
D --> G["VBGM1803 \n 80V/180A"]
E --> H["VBGM1803 \n 80V/180A"]
F --> I["電機U相"]
G --> J["電機V相"]
H --> K["電機W相"]
I --> L[電機中性點]
J --> L
K --> L
end
subgraph "驅動與控制"
M["電機控制器"] --> N["預驅動晶片"]
N --> O["柵極驅動電阻"]
O --> F
O --> G
O --> H
P["電流檢測"] --> Q["電流採樣"]
Q --> M
R["霍爾感測器"] --> M
end
subgraph "保護電路"
S["TVS管"] --> F
T["柵極電阻"] --> F
U["退耦電容"] --> N
V["過流比較器"] --> W["故障鎖存"]
W --> X["關斷信號"]
X --> N
end
style F fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
style G fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
style H fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
中央電源轉換拓撲詳圖
graph TB
subgraph "高壓DC-DC變換器"
A["高壓輸入 \n 300-400VDC"] --> B["輸入濾波電容"]
B --> C["全橋開關網路"]
subgraph "開關管陣列"
Q1["VBPB165I60 \n 600V/60A"]
Q2["VBPB165I60 \n 600V/60A"]
Q3["VBPB165I60 \n 600V/60A"]
Q4["VBPB165I60 \n 600V/60A"]
end
C --> Q1
C --> Q2
C --> Q3
C --> Q4
Q1 --> D["變壓器初級"]
Q2 --> D
Q3 --> D
Q4 --> D
D --> E["高頻變壓器"]
E --> F["次級整流"]
F --> G["輸出濾波"]
G --> H["低壓輸出 \n 48V/24V"]
end
subgraph "控制與驅動"
I["PWM控制器"] --> J["隔離驅動"]
J --> K["柵極驅動電路"]
K --> Q1
K --> Q2
K --> Q3
K --> Q4
L["電壓回饋"] --> I
M["電流檢測"] --> I
end
subgraph "緩衝與保護"
N["RCD緩衝電路"] --> Q1
O["RC吸收電路"] --> Q2
P["TVS保護"] --> J
Q["過流保護"] --> R["關斷邏輯"]
R --> I
end
style Q1 fill:#fff3e0,stroke:#ff9800,stroke-width:2px
style Q2 fill:#fff3e0,stroke:#ff9800,stroke-width:2px
輔助與介面電路拓撲詳圖
graph LR
subgraph "雙路負載開關配置"
A["MCU GPIO \n 3.3V"] --> B["電平匹配"]
B --> C["VB3222A 通道1"]
B --> D["VB3222A 通道2"]
E["12V輔助電源"] --> C
E --> D
C --> F["負載1 \n 感測器/燈光"]
D --> G["負載2 \n 風扇/通信"]
F --> H[GND]
G --> H
end
subgraph "小功率電機驅動"
I["MCU PWM"] --> J["H橋驅動邏輯"]
J --> K["VB3222A Q1"]
J --> L["VB3222A Q2"]
J --> M["VB3222A Q3"]
J --> N["VB3222A Q4"]
O["電機電源"] --> K
O --> M
K --> P["電機正端"]
L --> Q["電機負端"]
M --> Q
N --> P
P --> R["有刷直流電機"]
Q --> R
end
subgraph "介面保護"
S["TVS陣列"] --> C
S --> D
T["串聯電阻"] --> B
U["濾波電容"] --> E
V["ESD保護"] --> A
end
style C fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
style D fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
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