会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 21. 发明授权
    • Temperature compensation of small signal gain of an amplifier stage
    • 放大器级小信号增益的温度补偿
    • US07616059B2
    • 2009-11-10
    • US11788036
    • 2007-04-18
    • Christian GrewingDetlev TheilStefan Van Waasen
    • Christian GrewingDetlev TheilStefan Van Waasen
    • H03F3/45
    • H03F3/45183H03F3/45H03F2200/447H03F2203/45352H03F2203/45354
    • The invention relates to an differential amplifier circuit comprising an amplifier stage comprising a first and a second transistor, the gates of which are connected to differential input terminals of the amplifier stage. The differential amplifier further comprises a temperature compensation circuit comprising a third and fourth transistor. The third transistor is connected to the source of the first transistor and the fourth transistor is connected to the source of the second transistor. Further, the temperature compensation circuit comprises a constant current source connected to the respective sources of the third and fourth transistors. Thereby the temperature compensation circuit is arranged to provide a feedback resistance in dependence on the operating temperature so as to compensate for variations of the resistance of the first and second transistors.
    • 本发明涉及一种差分放大器电路,其包括放大器级,该放大器级包括第一和第二晶体管,其栅极连接到放大器级的差分输入端。 该差分放大器还包括一个包括第三和第四晶体管的温度补偿电路。 第三晶体管连接到第一晶体管的源极,第四晶体管连接到第二晶体管的源极。 此外,温度补偿电路包括连接到第三和第四晶体管的各个源极的恒流源。 由此,温度补偿电路被布置成根据工作温度提供反馈电阻,以便补偿第一和第二晶体管的电阻的变化。
    • 25. 发明授权
    • Quadricorrelator for a demodulator for frequency-modulated signals
    • 用于频率调制信号的解调器的四叉矩阵器
    • US06738433B1
    • 2004-05-18
    • US09607321
    • 2000-06-30
    • Stefan Van WaasenGuiseppe Li Puma
    • Stefan Van WaasenGuiseppe Li Puma
    • H04L2706
    • H03D3/007
    • The quadricorrelator for a demodulator for frequency-modulated signals has a first input receiving an in-phase component of the signal and a second input receiving a quadrature component of the signal. The first and second inputs are followed by respective first and second multiplier units. The output of the first multiplier unit is connected with a positive sign, and the output of the second multiplier unit is connected with a negative sign to the output adder unit. The in-phase component is supplied via a first transfer function to the second multiplier unit, and the quadrature component is supplied via a second transfer function to the first multiplier unit. A demodulator characteristic formed between the input and output of the quadricorrelator cuts the frequency axis at a point where the frequency is nonzero and runs essentially linearly in a sufficiently wide frequency band which surrounds or is adjacent to the intersection point.
    • 用于频率调制信号的解调器的二次相关器具有接收信号的同相分量的第一输入端和接收该信号的正交分量的第二输入端。 第一和第二输入之后是相应的第一和第二乘法器单元。 第一乘法器单元的输出与正号连接,第二乘法单元的输出与负号连接到输出加法器单元。 同相分量通过第一传递函数提供给第二乘法器单元,并且正交分量经由第二传递函数提供给第一乘法器单元。 形成在二次相关器的输入和输出之间的解调器特性在频率非零的点处切割频率轴,并且在围绕或邻近交点的足够宽的频带内基本线性地运行。
    • 28. 发明申请
    • Temperature compensation of small signal gain of an amplifier stage
    • 放大器级小信号增益的温度补偿
    • US20080231363A1
    • 2008-09-25
    • US11788036
    • 2007-04-18
    • Christian GrewingDetlev TheilStefan Van Waasen
    • Christian GrewingDetlev TheilStefan Van Waasen
    • H03F3/45
    • H03F3/45183H03F3/45H03F2200/447H03F2203/45352H03F2203/45354
    • The invention relates to an differential amplifier circuit comprising an amplifier stage comprising a first and a second transistor, the gates of which are connected to differential input terminals of the amplifier stage. The differential amplifier further comprises a temperature compensation circuit comprising a third and fourth transistor. The third transistor is connected to the source of the first transistor and the fourth transistor is connected to the source of the second transistor. Further, the temperature compensation circuit comprises a constant current source connected to the respective sources of the third and fourth transistors. Thereby the temperature compensation circuit is arranged to provide a feedback resistance in dependence on the operating temperature so as to compensate for variations of the resistance of the first and second transistors.
    • 本发明涉及一种差分放大器电路,其包括放大器级,该放大器级包括第一和第二晶体管,其栅极连接到放大器级的差分输入端。 该差分放大器还包括一个包括第三和第四晶体管的温度补偿电路。 第三晶体管连接到第一晶体管的源极,第四晶体管连接到第二晶体管的源极。 此外,温度补偿电路包括连接到第三和第四晶体管的各个源极的恒流源。 由此,温度补偿电路被布置成根据工作温度提供反馈电阻,以便补偿第一和第二晶体管的电阻的变化。