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    • 2. 发明公开
    • SYSTEM AND METHOD OF MODULATING ELECTRICAL SIGNALS USING PHOTOCONDUCTIVE WIDE BANDGAP SEMICONDUCTORS AS VARIABLE RESISTORS
    • 系统和方法调制的电信号通过与BIG BAND距离可调电阻,半导体光电
    • EP2272100A2
    • 2011-01-12
    • EP09733159.9
    • 2009-04-17
    • Lawrence Livermore National Security, LLC
    • HARRIS, John, R.CAPORASO, George, J.SAMPAYAN, Stephen, E.
    • H01L31/08G02F1/03H03C1/34
    • H03C1/34H03C7/00
    • A system and method for producing modulated electrical signals. The system uses a variable resistor having a photoconductive wide bandgap semiconductor material construction whose conduction response to changes in amplitude of incident radiation is substantially linear throughout a non-saturation region to enable operation in non-avalanche mode. The system also includes a modulated radiation source, such as a modulated laser, for producing amplitude- modulated radiation with which to direct upon the variable resistor and modulate its conduction response. A voltage source and an output port, are both operably connected to the variable resistor so that an electrical signal may be produced at the output port by way of the variable resistor, either generated by activation of the variable resistor or propagating through the variable resistor. In this manner, the electrical signal is modulated by the variable resistor so as to have a waveform substantially similar to the amplitude-modulated radiation.
    • 一种用于系统和方法产生经调制的电信号。 该系统采用具有光电导宽带隙半导体材料构造谁的传导响应于入射辐射的幅度变化在整个非饱和区域基本上是线性的,以使在非雪崩模式操作的可变电阻器。 因此,该系统包括一调制辐射源,检查作为调制的激光,其制造调幅辐射,其在可变电阻器以引导并调节其传导的响应。 电压源和输出端口,都是可操作地连接到可变电阻器,从而也以电信号可以在由可变电阻器的方式输出端口来产生,要么产生由可变电阻器的激活或通过可变电阻器传播。 以这种方式,电信号被可变电阻器调制,以便具有基本上类似于调幅辐射的波形。