graph TB
subgraph "三相維也納拓撲 (雙向工作)"
A[三相380VAC輸入] --> B[輸入濾波與保護]
B --> C[三相整流橋臂]
C --> D[中性點鉗位]
D --> E[PFC電感組]
E --> F[開關節點]
subgraph "高壓開關陣列"
Q_A1["VBPB17R11S \n 700V/11A"]
Q_A2["VBPB17R11S \n 700V/11A"]
Q_B1["VBPB17R11S \n 700V/11A"]
Q_B2["VBPB17R11S \n 700V/11A"]
Q_C1["VBPB17R11S \n 700V/11A"]
Q_C2["VBPB17R11S \n 700V/11A"]
end
F --> Q_A1
F --> Q_A2
F --> Q_B1
F --> Q_B2
F --> Q_C1
F --> Q_C2
Q_A1 --> G[高壓直流母線+]
Q_A2 --> H[高壓直流母線-]
Q_B1 --> G
Q_B2 --> H
Q_C1 --> G
Q_C2 --> H
end
subgraph "驅動與保護電路"
I[雙向PFC控制器] --> J[隔離柵極驅動器]
J --> Q_A1
J --> Q_A2
J --> Q_B1
J --> Q_B2
J --> Q_C1
J --> Q_C2
K[電壓採樣] --> I
L[電流採樣] --> I
M[溫度檢測] --> I
subgraph "吸收與保護網路"
N["RCD緩衝電路"]
O["RC吸收電路"]
P["TVS保護陣列"]
end
N --> Q_A1
O --> Q_A2
P --> J
end
subgraph "控制邏輯"
I --> Q[PWM生成與同步]
Q --> R[單位功率因數控制]
I --> S[並網/離網模式切換]
S --> T[能量流動方向控制]
T --> U[充電模式: 電網→儲能]
T --> V[放電模式: 儲能→電網]
end
style Q_A1 fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
雙向DC-DC變換級拓撲詳圖 (非隔離Buck/Boost)
graph TB
subgraph "雙向Buck/Boost變換器"
A[高壓直流母線 750VDC] --> B[輸入濾波電容]
B --> C[高壓側開關節點]
subgraph "高壓側開關"
Q_HIGH["高壓MOSFET \n 600V/??A"]
end
C --> Q_HIGH
Q_HIGH --> D[電感節點]
subgraph "主功率電感"
E["高頻功率電感 \n μH級"]
end
D --> E
E --> F[低壓側開關節點]
subgraph "低壓側同步整流MOSFET陣列"
Q_LOW1["VBQF1206 \n 20V/58A"]
Q_LOW2["VBQF1206 \n 20V/58A"]
Q_LOW3["VBQF1206 \n 20V/58A"]
Q_LOW4["VBQF1206 \n 20V/58A"]
end
F --> Q_LOW1
F --> Q_LOW2
F --> Q_LOW3
F --> Q_LOW4
Q_LOW1 --> G[輸出濾波網路]
Q_LOW2 --> G
Q_LOW3 --> G
Q_LOW4 --> G
G --> H[電池直流母線 200-800VDC]
end
subgraph "控制與驅動系統"
I[雙向DC-DC控制器] --> J[高壓側驅動器]
I --> K[低壓側驅動器]
J --> Q_HIGH
K --> Q_LOW1
K --> Q_LOW2
K --> Q_LOW3
K --> Q_LOW4
L[電壓環控制器] --> I
M[電流環控制器] --> I
N[模式選擇邏輯] --> I
N --> O[充電模式: Buck]
N --> P[放電模式: Boost]
end
subgraph "電流檢測與保護"
Q[高精度電流感測器] --> R[電流採樣電路]
R --> S[過流比較器]
S --> T[故障保護]
T --> U[驅動關斷]
U --> Q_HIGH
U --> Q_LOW1
end
subgraph "熱管理介面"
V[PCB功率銅層] --> Q_LOW1
V --> Q_LOW2
W[散熱基板] --> V
X[溫度感測器] --> I
I --> Y[降頻保護]
end
style Q_LOW1 fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
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