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1.发明公开
公开(公告)号：EP3280074A1
公开(公告)日：2018-02-07
申请号：EP16382380.0
申请日：2016-08-01
CPC分类号： H05B33/0812 , H04B10/50 , H04B10/502
摘要： This invention relates to a light emitting diode driving circuit (101) for use in an optical transmitter (100) comprising: a high-speed signal path (102) comprising a high-speed trans-conductance amplifier (114) configured for a linear transformation of an input signal to an output signal for linear modulation of a light emitting diode (110), and a low-frequency control path (103) configured for generating a trans-conductance (115) in dependence of a low-frequency component of the input signal (106), and wherein the low-frequency control path (103) is configured for controlling the trans-conductance (116) of the high-speed trans-conductance amplifier (114).
摘要翻译： 本发明涉及一种用于光发射机（100）的发光二极管驱动电路（101），包括：包括高速跨导放大器（114）的高速信号路径（102），所述高速跨导放大器（114）被配置用于线性变换 （110）的线性调制的输出信号的输入信号和低频控制路径（103），所述低频控制路径（103）被配置用于根据所述输入信号的低频分量（110）生成跨导（115） 输入信号（106），并且其中所述低频控制路径（103）被配置用于控制所述高速跨导放大器（114）的所述跨导（116）。
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2.发明授权
公开(公告)号：EP3297184B1
公开(公告)日：2018-12-12
申请号：EP16382431.1
申请日：2016-09-15
CPC分类号： H04B10/6931 , H03F3/45475 , H03F2203/45116 , H03F2203/45138 , H03F2203/45288 , H03G1/0035 , H03G3/001 , H03G3/3084 , H04B10/6933
摘要： This invention relates to a optical receiver circuit (200) comprising: at least one photo detector (207) configured to convert a received light signal to an input current signal, a transimpedance amplifier circuit (201) with an input to receive the input current signal from the at least one photo detector (207) and being configured to convert the received input current signal to an output voltage signal to generate an output signal of the transimpedance amplifier circuit (201), wherein the transimpedance amplifier circuit comprises a plurality of gain amplifier stages (209, 210, 211), a DC restoration component (205), wherein the DC restoration component (205) is configured to receive the output voltage signal of the transimpedance amplifier circuit (201) for restoring the DC component of the received current signal and configured for outputting a corresponding current signal, and an automatic gain control component (204) configured for controlling via at least one programmable feedback resistor (226, 227) the equivalent transimpedance of the transimpedance amplifier circuit based on the signal output by the DC restoration component (205) to provide a constant output voltage amplitude for different current ranges of the input current signal.
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公开(公告)号：EP3280074B1
公开(公告)日：2018-11-14
申请号：EP16382380.0
申请日：2016-08-01
CPC分类号： H05B33/0812 , H04B10/50 , H04B10/502
摘要： This invention relates to a light emitting diode driving circuit (101) for use in an optical transmitter (100) comprising: a high-speed signal path (102) comprising a high-speed trans-conductance amplifier (114) configured for a linear transformation of an input signal to an output signal for linear modulation of a light emitting diode (110), and a low-frequency control path (103) configured for generating a trans-conductance (115) in dependence of a low-frequency component of the input signal (106), and wherein the low-frequency control path (103) is configured for controlling the trans-conductance (116) of the high-speed trans-conductance amplifier (114).
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4.发明公开
公开(公告)号：EP3297184A1
公开(公告)日：2018-03-21
申请号：EP16382431.1
申请日：2016-09-15
CPC分类号： H04B10/6931 , H03F3/45475 , H03F2203/45116 , H03F2203/45138 , H03F2203/45288 , H03G1/0035 , H03G3/001 , H03G3/3084 , H04B10/6933
摘要： This invention relates to a optical receiver circuit (200) comprising: at least one photo detector (207) configured to convert a received light signal to an input current signal, a transimpedance amplifier circuit (201) with an input to receive the input current signal from the at least one photo detector (207) and being configured to convert the received input current signal to an output voltage signal to generate an output signal of the transimpedance amplifier circuit (201), wherein the transimpedance amplifier circuit comprises a plurality of gain amplifier stages (209, 210, 211), a DC restoration component (205), wherein the DC restoration component (205) is configured to receive the output voltage signal of the transimpedance amplifier circuit (201) for restoring the DC component of the received current signal and configured for outputting a corresponding current signal, and an automatic gain control component (204) configured for controlling via at least one programmable feedback resistor (226, 227) the equivalent transimpedance of the transimpedance amplifier circuit based on the signal output by the DC restoration component (205) to provide a constant output voltage amplitude for different current ranges of the input current signal.
摘要翻译： 本发明涉及一种光学接收器电路（200），包括：至少一个光电检测器（207），其被配置为将接收的光信号转换为输入电流信号;跨阻放大器电路（201），其具有输入端以接收输入电流信号 来自所述至少一个光电检测器（207）并且被配置为将所接收的输入电流信号转换为输出电压信号以生成所述跨阻放大器电路（201）的输出信号，其中所述跨阻放大器电路包括多个增益放大器 （209,210,211），DC恢复组件（205），其中DC恢复组件（205）被配置为接收跨阻抗放大器电路（201）的输出电压信号以恢复接收到的电流的DC分量 信号并且被配置用于输出相应的电流信号，以及自动增益控制组件（204），被配置用于经由至少一个可编程反馈 k）电阻器（226,227）基于DC恢复组件（205）输出的信号来提供跨阻抗放大器电路的等效互阻抗，以针对输入电流信号的不同电流范围提供恒定的输出电压幅度。
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