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1. 发明授权

US09312808B2 Low-noise voltage-controlled oscillator 有权
标题翻译：低噪声压控振荡器
公开(公告)号：US09312808B2
公开(公告)日：2016-04-12
申请号：US14429807
申请日：2013-03-12
申请人： INSTITUTE OF MICROELECTRONICS, CHINESE ACADEMY OF SCIENCES
发明人： Zhiqiang Lv , Lan Chen
IPC分类号： H03B5/08 , H03B5/02 , H03B5/12
CPC分类号： H03B5/02 , H03B5/1212 , H03B5/1215 , H03B5/1228 , H03B5/1243 , H03B5/1253 , H03B2200/009
摘要： A low-noise and big tuning range voltage-controlled oscillator. Wherein a current source circuit is used for generating working current of the voltage-controlled oscillator, a resonance circuit is used for generating an oscillating signal of the voltage-controlled oscillator, the resonance circuit is an inductance and capacitance type resonance circuit, wherein capacitance adopts a metal oxide semiconductor (MOS) capacitive reactance tube or a reverse diode to increase the tuning range of the circuit, a negative resistance circuit is used for generating negative resistance to counteract positive resistance generated by the resonance circuit, and a feedback circuit is used for feeding back the oscillating signal generated by the resonance circuit to the current source circuit to add a new current to the current source.
摘要翻译：低噪声，大调谐范围的压控振荡器。其中，电流源电路用于产生压控振荡器的工作电流，谐振电路用于产生压控振荡器的振荡信号，谐振电路是电感和电容型谐振电路，其中电容采用金属氧化物半导体（MOS）电容性电抗器或反向二极管以增加电路的调谐范围，负电阻电路用于产生负电阻以抵消由谐振电路产生的正电阻，反馈电路用于将由谐振电路产生的振荡信号反馈到电流源电路以向当前源添加新电流。

2. 发明授权

US09350380B2 Sigma-delta modulator and analog-to-digital converter 有权
标题翻译： Σ-Δ调制器和模数转换器
公开(公告)号：US09350380B2
公开(公告)日：2016-05-24
申请号：US14425095
申请日：2013-02-28
申请人： INSTITUTE OF MICROELECTRONICS, CHINESE ACADEMY OF SCIENCES
发明人： Lan Chen
IPC分类号： H03M3/00 , H03M1/00
CPC分类号： H03M3/324 , H03M1/002 , H03M3/38 , H03M3/424 , H03M3/438 , H03M3/50
摘要： A Sigma-Delta modulator and an analog-to-digital converter. The Sigma-Delta modulator comprises a quantizer, a correction module and an RC integrator. The correction module comprises a predetermined resistance through which a correction level is generated. The correction module is used to compare the correction level with a predetermined reference voltage by using a comparator in the quantizer, so as to generate a digital correction signal, based on which the resistance in a resistance correction array in the RC integrator is corrected. The predetermined resistance is of the same type as the resistance in the resistance correction array in the RC integrator. The Sigma-Delta modulator and the analog-to-digital converter can correct the resistance deviation in the RC integrator.
摘要翻译： Σ-Δ调制器和模数转换器。 Sigma-Delta调制器包括量化器，校正模块和RC积分器。校正模块包括产生校正水平的预定电阻。校正模块用于通过使用量化器中的比较器将校正电平与预定参考电压进行比较，以产生数字校正信号，基于该校正信号校正RC积分器中的电阻校正阵列中的电阻。预定电阻与RC积分器中的电阻校正阵列中的电阻相同。 Sigma-Delta调制器和模数转换器可以校正RC积分器中的电阻偏差。

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