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    • 2. 发明申请
    • Avalanche Photodiode Circuits
    • 雪崩光电二极管电路
    • US20110233385A1
    • 2011-09-29
    • US13059437
    • 2008-08-20
    • David Dyer
    • David Dyer
    • H03F3/08
    • H01L31/02027H03F3/08
    • An avalanche photodiode circuit, comprising an avalanche photodiode typically connected in parallel to a capacitor, in which there is provided a current shunt circuit which activates to shunt current from the avalanche photodiode in response to detecting a decrease in the impedance of the avalanche photodiode, typically measured by determining the slope of the voltage across the avalanche photodiode. By using this circuit, the avalanche photodiode can be protected from sudden increases in incident light level decreasing the impedance of the avalanche photodiode to an extent that the energy such as is stored in the capacitor can damage the structure of the avalanche photodiode.
    • 通常雪崩光电二极管包括通常并联连接到电容器的雪崩光电二极管,其中提供了一个电流分流电路,其响应于检测到雪崩光电二极管的阻抗的降低而激活以分流来自雪崩光电二极管的电流 通过确定雪崩光电二极管两端的电压的斜率来测量。 通过使用该电路,可以防止雪崩光电二极管突然增加入射光级,从而降低雪崩光电二极管的阻抗,使得诸如存储在电容器中的能量可能损坏雪崩光电二极管的结构。