graph LR
subgraph "高效率電機驅動級"
A["電池7.4V"] --> B["VBQF3211 \n 電源開關"]
B --> C["主濾波電容"]
C --> D["VBGQF1305 \n 驅動MOSFET"]
D --> E["無刷電機線圈"]
E --> F["電流採樣電阻 \n 10mΩ"]
F --> G["電機地"]
H["MCU PWM \n 100kHz"] --> I["柵極驅動器"]
I --> J["柵極電阻2.2Ω"]
J --> D
K["反電動勢"] --> L["TVS保護"]
L --> D
end
subgraph "動態特性優化"
M["低Rds(on)=4mΩ"] --> N["導通損耗:0.2W"]
O["SGT技術"] --> P["低Qg,高頻回應"]
Q["RC吸收電路"] --> R["抑制電壓尖峰"]
S["星型接地"] --> T["最小化環路面積"]
end
style D fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
style B fill:#fff3e0,stroke:#ff9800,stroke-width:2px
智能負載管理拓撲詳圖
graph TB
subgraph "雙路負載開關配置"
A["MCU控制信號"] --> B["電平轉換電路"]
B --> C["VBQF3211 \n 通道1使能"]
B --> D["VBQF3211 \n 通道2使能"]
E["電池電源"] --> F["VBQF3211 \n 雙N-MOS陣列"]
subgraph F ["集成雙路結構"]
direction LR
GATE1[柵極1]
GATE2[柵極2]
DRAIN1[漏極1]
DRAIN2[漏極2]
SOURCE1[源極1]
SOURCE2[源極2]
end
C --> GATE1
D --> GATE2
DRAIN1 --> H["主水泵電機"]
DRAIN2 --> I["UV-C殺菌燈"]
SOURCE1 --> J["負載地"]
SOURCE2 --> J
end
subgraph "輔助控制通道"
K["MCU GPIO"] --> L["直接驅動"]
L --> M["VBK7322 \n 信號MOSFET"]
M --> N["電磁閥線圈"]
O["3.3V邏輯相容"] --> P["無需電平轉換"]
Q["Rds(on)=23mΩ"] --> R["低壓降設計"]
end
style F fill:#fff3e0,stroke:#ff9800,stroke-width:2px
style M fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
熱管理與EMC拓撲詳圖
graph LR
subgraph "三級熱管理架構"
A["一級: 主動散熱區"] --> B["VBGQF1305 \n 電機驅動MOSFET"]
C["二級: 被動散熱區"] --> D["VBQF3211 \n 負載開關"]
E["三級: 自然散熱區"] --> F["MCU與控制IC"]
G["散熱過孔陣列"] --> B
H["PCB敷銅層"] --> B
H --> D
I["環境空氣對流"] --> D
I --> F
end
subgraph "EMC抑制網路"
J["電機兩端RC吸收"] --> K["10Ω+100pF"]
L["柵極串聯電阻"] --> M["2.2Ω抑制振鈴"]
N["去耦電容佈局"] --> O["10μF+100nF組合"]
P["星型接地系統"] --> Q["單點接地"]
R["TVS保護陣列"] --> S["吸收電壓尖峰"]
T["電源路徑濾波"] --> U["π型濾波器"]
end
subgraph "保護電路"
V["電流檢測"] --> W["過流保護閾值"]
X["溫度監測"] --> Y["過熱降頻控制"]
Z["電壓監控"] --> AA["欠壓關斷"]
AB["故障診斷"] --> AC["狀態指示燈"]
end
style B fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
style D fill:#fff3e0,stroke:#ff9800,stroke-width:2px
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