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    • 5. 发明授权
    • Hybrid analog-to-digital converter having multiple ADC modes
    • 具有多种ADC模式的混合模数转换器
    • US08933385B2
    • 2015-01-13
    • US13543470
    • 2012-07-06
    • Rui WangLiping DengTiejun Dai
    • Rui WangLiping DengTiejun Dai
    • G01J1/44H03M1/12H03M1/38
    • H03M1/145H03M1/466H03M1/56
    • A hybrid ADC having a successive approximation register (SAR) ADC mode for generating a bit of a digital signal and a ramp ADC mode for generating an additional bit of the digital signal is disclosed. When in the SAR ADC mode, a control circuit is configured to disable a ramp signal generator; disable a counter; and enable a register to control an offset stage to set the magnitude of an offset voltage that is provided to an input of a comparator of the ADC. When in the ramp ADC mode, the control circuit is configured to enable the ramp signal generator to provide a ramp signal to the input of the comparator; enable the counter to begin providing the digital count in response to the output of the comparator; and disable the register so that the offset stage is not providing the offset voltage.
    • 公开了一种具有用于产生数字信号位的逐次逼近寄存器(SAR)ADC模式和用于产生数字信号的附加位的斜坡ADC模式的混合ADC。 当处于SAR ADC模式时,控制电路被配置为禁止斜坡信号发生器; 禁用计数器 并且使能寄存器来控制偏移级以设置提供给ADC的比较器的输入的偏移电压的幅度。 当处于斜坡ADC模式时,控制电路被配置为使得斜坡信号发生器能够向比较器的输入端提供斜坡信号; 使计数器响应于比较器的输出开始提供数字计数; 并禁用寄存器,使偏移级不提供偏移电压。
    • 6. 发明申请
    • HYBRID ANALOG-TO-DIGITAL CONVERTER HAVING MULTIPLE ADC MODES
    • 具有多种ADC模式的混合模数转换器
    • US20140008515A1
    • 2014-01-09
    • US13543470
    • 2012-07-06
    • Rui WangLiping DengTiejun Dai
    • Rui WangLiping DengTiejun Dai
    • H03M1/38H03M1/14H01L27/146
    • H03M1/145H03M1/466H03M1/56
    • A hybrid ADC having a successive approximation register (SAR) ADC mode for generating a bit of a digital signal and a ramp ADC mode for generating an additional bit of the digital signal is disclosed. When in the SAR ADC mode, a control circuit is configured to disable a ramp signal generator; disable a counter; and enable a register to control an offset stage to set the magnitude of an offset voltage that is provided to an input of a comparator of the ADC. When in the ramp ADC mode, the control circuit is configured to enable the ramp signal generator to provide a ramp signal to the input of the comparator; enable the counter to begin providing the digital count in response to the output of the comparator; and disable the register so that the offset stage is not providing the offset voltage.
    • 公开了一种具有用于产生数字信号位的逐次逼近寄存器(SAR)ADC模式和用于产生数字信号的附加位的斜坡ADC模式的混合ADC。 当处于SAR ADC模式时,控制电路被配置为禁止斜坡信号发生器; 禁用计数器 并且使能寄存器来控制偏移级以设置提供给ADC的比较器的输入的偏移电压的幅度。 当处于斜坡ADC模式时,控制电路被配置为使得斜坡信号发生器能够向比较器的输入端提供斜坡信号; 使计数器响应于比较器的输出开始提供数字计数; 并禁用寄存器,使偏移级不提供偏移电压。