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    • 11. 发明授权
    • Duty cycle correction
    • 占空比校正
    • US08384457B2
    • 2013-02-26
    • US13081315
    • 2011-04-06
    • Mehmet T. OzgunChi ZhangSee Taur Lee
    • Mehmet T. OzgunChi ZhangSee Taur Lee
    • H03K3/017H03K5/04H03K7/08
    • H03K5/1565
    • Method and circuitry for controlling duty cycle of an input signal towards a desired value comprising a sequence of at least two inverters arranged in series and feedback circuitry. A first inverter is arranged to receive the input signal and a last inverter is arranged to output a signal having the same frequency as the input signal. The output signal is an adjusted version of the input signal. The feedback circuitry is arranged to receive the output signal and comprises a comparing and supplying means. The comparing means compares the output signal with a reference signal indicative of a desired value and generates a feedback signal based on the comparison of the output and reference signal. The supplying means supplies the feedback signal to adjust operating conditions of at least one of the inverters, such that the duty cycle of the output signal is controlled towards the desired value.
    • 用于将输入信号的占空比控制到期望值的方法和电路,包括串联布置的至少两个反相器的序列和反馈电路。 第一反相器被布置成接收输入信号,并且最后一个反相器被布置成输出具有与输入信号相同频率的信号。 输出信号是输入信号的调整版本。 反馈电路被布置成接收输出信号并且包括比较和提供装置。 比较装置将输出信号与表示期望值的参考信号进行比较,并且基于输出和参考信号的比较产生反馈信号。 供应装置提供反馈信号以调整至少一个逆变器的操作条件,使得输出信号的占空比被控制到期望值。
    • 13. 发明申请
    • MIXER CIRCUIT
    • 混频器电路
    • US20120256676A1
    • 2012-10-11
    • US13083188
    • 2011-04-08
    • Abdellatif BellaouarSee Taur Lee
    • Abdellatif BellaouarSee Taur Lee
    • G06G7/12H03K3/00
    • H03F3/505H03D7/1458H03D7/1466H03D7/165H03D2200/0074
    • A driver circuit for supplying a drive signal to a mixer circuit comprising a first and second circuit branch and an operational amplifier. The first circuit branch receives an input signal and a bias signal. The second circuit branch receives the input signal. The operational amplifier has a first input connected to a junction node of the first circuit branch and a second input connected to a junction node of the second circuit branch. The operational amplifier is arranged to provide an operational amplifier output signal a second component of the second circuit branch so that a voltage at the junction node of the second circuit branch is equal to a voltage at the junction node of the first circuit branch. The voltage is dependent on the input signal and providing the drive signal.
    • 一种驱动电路,用于将驱动信号提供给包括第一和第二电路支路和运算放大器的混频器电路。 第一电路支路接收输入信号和偏置信号。 第二电路支路接收输入信号。 运算放大器具有连接到第一电路支路的结节点的第一输入端和连接到第二电路支路的结节点的第二输入端。 运算放大器被布置成提供运算放大器输出信号第二电路分支的第二分量,使得第二电路分支的结节点处的电压等于第一电路分支的结节点处的电压。 电压取决于输入信号并提供驱动信号。
    • 14. 发明申请
    • DUTY CYCLE CORRECTION
    • 占空比校正
    • US20120256669A1
    • 2012-10-11
    • US13081315
    • 2011-04-06
    • Mehmet T. OzgunChi ZhangSee Taur Lee
    • Mehmet T. OzgunChi ZhangSee Taur Lee
    • H03K3/017
    • H03K5/1565
    • Method and circuitry for controlling duty cycle of an input signal towards a desired value comprising a sequence of at least two inverters arranged in series and feedback circuitry. A first inverter is arranged to receive the input signal and a last inverter is arranged to output a signal having the same frequency as the input signal. The output signal is an adjusted version of the input signal. The feedback circuitry is arranged to receive the output signal and comprises a comparing and supplying means. The comparing means compares the output signal with a reference signal indicative of a desired value and generates a feedback signal based on the comparison of the output and reference signal. The supplying means supplies the feedback signal to adjust operating conditions of at least one of the inverters, such that the duty cycle of the output signal is controlled towards the desired value.
    • 用于将输入信号的占空比控制到期望值的方法和电路,包括串联布置的至少两个反相器的序列和反馈电路。 第一反相器被布置成接收输入信号,并且最后一个反相器被布置成输出具有与输入信号相同频率的信号。 输出信号是输入信号的调整版本。 反馈电路被布置成接收输出信号并且包括比较和提供装置。 比较装置将输出信号与表示期望值的参考信号进行比较,并且基于输出和参考信号的比较产生反馈信号。 供应装置提供反馈信号以调整至少一个逆变器的操作条件,使得输出信号的占空比被控制到期望值。