graph LR
subgraph "P-MOS高側電源開關"
A["電池/適配器 \n 12-24V"] --> B["保險絲 \n 過流保護"]
B --> C["VBC7P3017 \n -30V/-9A"]
subgraph C[VBC7P3017電路]
direction LR
S[源極] --> G[柵極]
G --> D[漏極]
end
C --> D_OUT["主電源匯流排"]
D["電平轉換電路"] --> G
D_OUT --> E["輸出濾波電容"]
end
subgraph "N-MOS電機低側驅動"
E --> F["電機驅動IC"]
F --> GATE_DRV["柵極驅動"]
GATE_DRV --> H["VBQF1405 \n 40V/40A"]
subgraph H[VBQF1405電路]
direction LR
S2[源極接地]
G2[柵極驅動]
D2[漏極接電機]
end
H --> I["壓縮電機"]
H --> J["高速風機"]
I --> K["續流二極體"]
J --> K
K --> L[電源匯流排]
M["電流檢測電阻"] --> N["運放放大"]
N --> O["MCU ADC"]
end
style C fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
style H fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
智能負載管理拓撲詳圖
graph TB
subgraph "雙N-MOS智能開關"
A["MCU GPIO \n 3.3V/5V"] --> B["22-100Ω \n 柵極電阻"]
B --> C["VB362K \n 雙N-MOS"]
subgraph C[VB362K內部結構]
direction LR
CH1["通道1: N-MOS"]
CH2["通道2: N-MOS"]
end
C --> D["TVS保護 \n 柵極ESD"]
D --> E["負載連接"]
end
subgraph "通道1: UV-C消毒控制"
F["MCU GPIO1"] --> G["邏輯控制"]
G --> C_CH1["CH1柵極"]
C_CH1 --> H["漏極連接"]
H --> I["UV-C LED燈串"]
I --> J["恒流驅動"]
J --> K["電源匯流排"]
L["過溫檢測"] --> M["MCU回饋"]
end
subgraph "通道2: 臭氧發生器控制"
N["MCU GPIO2"] --> O["智能定時"]
O --> C_CH2["CH2柵極"]
C_CH2 --> P["漏極連接"]
P --> Q["臭氧發生器"]
Q --> R["高壓模組"]
R --> S["電源匯流排"]
T["異味感測器"] --> U["MCU ADC"]
end
subgraph "狀態指示與開蓋控制"
V["MCU GPIO3"] --> W["PWM調光"]
W --> X["LED驅動器"]
X --> Y["RGB狀態燈"]
Z["接近感測器"] --> AA["MCU中斷"]
AA --> AB["舵機控制"]
AB --> AC["開蓋舵機"]
end
style C fill:#fff3e0,stroke:#ff9800,stroke-width:2px
保護電路與熱管理拓撲詳圖
graph LR
subgraph "三級散熱系統"
A["一級散熱: VBQF1405"] --> B["DFN8底部焊盤"]
B --> C["大面積PCB鋪銅"]
C --> D["散熱過孔陣列"]
D --> E["背面銅層散熱"]
F["二級散熱: VBC7P3017"] --> G["TSSOP8封裝"]
G --> H["適當鋪銅面積"]
I["三級散熱: VB362K/MCU"] --> J["常規佈線散熱"]
end
subgraph "EMC抑制與保護"
subgraph "電機回路保護"
K["VBQF1405漏極"] --> L["RC吸收電路 \n R=10Ω,C=1nF"]
M["電機兩端"] --> N["續流二極體 \n 40V/5A"]
O["電源匯流排"] --> P["TVS管 \n 33V"]
end
subgraph "柵極保護電路"
Q["驅動晶片輸出"] --> R["柵極電阻 \n 22-100Ω"]
R --> S["TVS雙向 \n 15V"]
S --> T["柵極對地"]
U["MCU GPIO"] --> V["電平轉換"]
V --> W["隔離電阻"]
end
subgraph "系統級保護"
X["主電源輸入"] --> Y["保險絲 \n 5-10A"]
Y --> Z["輸入電容 \n 100μF"]
AA["電流檢測"] --> AB["比較器"]
AB --> AC["故障鎖存"]
AC --> AD["關斷信號"]
AD --> AE["所有MOSFET"]
end
end
style A fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
style F fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
style I fill:#fff3e0,stroke:#ff9800,stroke-width:2px
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