graph LR
subgraph "低温模拟开关矩阵"
A["量子比特读出信号 \n μV-nV级"] --> B["低温前置放大"]
B --> C["模拟多路复用器"]
subgraph "传输门开关阵列"
TG1["VBK5213N \n N+P互补对"]
TG2["VBK5213N \n N+P互补对"]
TG3["VBK5213N \n N+P互补对"]
TG4["VBK5213N \n N+P互补对"]
end
C --> TG1
C --> TG2
C --> TG3
C --> TG4
TG1 --> D["通道1输出"]
TG2 --> E["通道2输出"]
TG3 --> F["通道3输出"]
TG4 --> G["通道4输出"]
H["低温控制逻辑"] --> I["低噪声驱动器"]
I --> TG1
I --> TG2
I --> TG3
I --> TG4
end
subgraph "信号完整性增强"
J["电源去耦网络"] --> TG1
K["屏蔽与接地"] -->|同轴屏蔽| A
L["π型滤波"] --> D
M["电荷注入补偿"] --> TG1
end
style TG1 fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
style H fill:#fce4ec,stroke:#e91e63,stroke-width:2px
低温PoL电源转换拓扑详图
graph TB
subgraph "同步Buck转换器"
A["12V中间总线"] --> B["输入滤波"]
B --> C["Buck控制器"]
C --> D["高侧驱动器"]
C --> E["低侧驱动器"]
D --> F["VBQG1317 \n 高侧开关"]
E --> G["VBQG1317 \n 低侧开关"]
F --> H["功率电感"]
G --> I["功率地"]
H --> J["输出滤波"]
J --> K["3.3V/1.8V输出"]
L["反馈网络"] --> C
K -->|电压采样| L
end
subgraph "热管理与布局"
M["铜冷板"] --> N["PCB热过孔阵列"]
N --> F
N --> G
O["低温陶瓷电容"] --> B
O --> J
P["温度传感器"] --> Q["热监控IC"]
Q --> C
end
subgraph "噪声抑制"
R["输入LC滤波"] --> B
S["输出π滤波"] --> J
T["栅极驱动电阻优化"] --> D
T --> E
U["屏蔽层接地"] --> H
end
style F fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
style G fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
量子比特控制偏置管理拓扑详图
graph LR
subgraph "双路精密偏置控制"
A["±10V偏置源"] --> B["精密滤波"]
B --> C["VBTA4250N \n 通道1"]
B --> D["VBTA4250N \n 通道2"]
E["低温FPGA/DAC"] --> F["电平转换缓冲"]
F --> C
F --> D
C --> G["磁通控制线"]
D --> H["微波驱动线"]
G --> I["量子比特芯片 \n Flux端口"]
H --> J["量子比特芯片 \n Microwave端口"]
end
subgraph "保护与隔离"
K["过流保护电路"] --> C
L["过压保护电路"] --> D
M["ESD保护"] --> G
N["漏电流监测"] --> C
O["低温屏蔽"] -->|法拉第笼| G
end
subgraph "时序与校准"
P["控制序列发生器"] --> E
Q["偏置校准DAC"] --> B
R["定时同步信号"] --> F
S["关断互锁"] --> C
S --> D
end
style C fill:#fff3e0,stroke:#ff9800,stroke-width:2px
style D fill:#fff3e0,stroke:#ff9800,stroke-width:2px
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