graph LR
subgraph "四相雙向同步升降壓"
A["電池輸入 \n 12-48V"] --> B["輸入濾波電容"]
B --> C["功率電感L1"]
C --> D["開關節點A"]
D --> E["VBGQF1305 \n 高側開關"]
E --> F["高壓匯流排 \n 12-30V"]
D --> G["VBGQF1305 \n 低側開關"]
G --> H[功率地]
I["功率電感L2"] --> D
J["功率電感L3"] --> K["開關節點B"]
K --> L["VBGQF1305 \n 高側開關"]
L --> F
K --> M["VBGQF1305 \n 低側開關"]
M --> H
N["PWM控制器"] --> O["四相驅動器"]
O --> E
O --> G
O --> L
O --> M
F -->|電壓回饋| N
H -->|電流檢測| N
end
subgraph "控制與保護"
P["MCU/AI處理器"] --> Q["升降壓控制演算法"]
Q --> N
R["過流保護"] --> S["故障鎖存"]
S --> T["驅動禁用"]
T --> O
U["溫度檢測"] --> V["熱管理策略"]
V --> P
end
style E fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
style G fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
style L fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
style M fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
多路負載開關與路徑管理拓撲詳圖
graph TB
subgraph "雙路負載開關控制"
A["高壓匯流排"] --> B["DC-DC轉換器"]
B --> C["5V/9V/12V/15V/20V \n 可調輸出"]
C --> D["VBC9216 通道1"]
D --> E["USB-C端口1 \n 最大60W"]
C --> F["VBC9216 通道2"]
F --> G["USB-C端口2 \n 最大100W"]
H["PD協議控制器"] --> I["智能功率分配"]
I --> J["GPIO控制"]
J --> D
J --> F
K["電流檢測"] --> L["過流保護"]
L --> M["關斷信號"]
M --> D
M --> F
end
subgraph "互補MOSFET路徑管理"
N["電池輸入"] --> O["VBQG5222 N-MOS"]
O --> P["主功率路徑"]
Q["外部輸入"] --> R["VBQG5222 P-MOS"]
R --> P
S["MCU控制"] --> T["邏輯電平轉換"]
T --> O
T --> R
U["理想二極體模式"] --> V["低損耗ORing"]
V --> O
W["防反接保護"] --> X["快速關斷"]
X --> R
P --> Y["系統負載"]
end
style D fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
style F fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
style O fill:#fff3e0,stroke:#ff9800,stroke-width:2px
style R fill:#fff3e0,stroke:#ff9800,stroke-width:2px
熱管理與保護電路拓撲詳圖
graph LR
subgraph "三級熱管理系統"
A["一級: 功率器件散熱"] --> B["VBGQF1305 MOSFET"]
C["二級: 負載開關散熱"] --> D["VBC9216 雙路開關"]
E["三級: 控制晶片散熱"] --> F["MCU及周邊IC"]
G["溫度感測器1"] --> H["MOSFET結溫檢測"]
G --> I["PCB溫度檢測"]
J["溫度感測器2"] --> K["外殼溫度檢測"]
J --> L["環境溫度檢測"]
H --> M["熱管理MCU"]
I --> M
K --> M
L --> M
M --> N["風扇PWM控制"]
M --> O["功率降額策略"]
N --> P["無刷直流風扇"]
O --> Q["動態頻率調整"]
Q --> B
end
subgraph "電氣保護網路"
R["RC吸收電路"] --> S["開關節點振鈴抑制"]
S --> B
T["TVS陣列"] --> U["端口浪湧保護"]
U --> V["USB/DC端口"]
W["過流檢測"] --> X["硬體比較器"]
X --> Y["快速關斷"]
Y --> B
Y --> D
Z["ESD保護"] --> AA["柵極保護電路"]
AA --> B
AA --> D
end
style B fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
style D fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
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