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1. 发明授权

US08022780B2 Auxiliary varactor for temperature compensation 有权
标题翻译：用于温度补偿的辅助变容二极管
公开(公告)号：US08022780B2
公开(公告)日：2011-09-20
申请号：US12107592
申请日：2008-04-22
申请人： Mazhareddin Taghivand , Conor Donovan , Jeongsik Yang , Sang-Oh Lee
发明人： Mazhareddin Taghivand , Conor Donovan , Jeongsik Yang , Sang-Oh Lee
IPC分类号： H03L1/02
CPC分类号： H03L1/023 , H03L1/025
摘要： Techniques for compensating for the effects of temperature change on voltage controlled oscillator (VCO) frequency are disclosed. In an embodiment, an auxiliary varactor is coupled to an LC tank of the VCO. The auxiliary varactor has a capacitance controlled by a temperature-dependant control voltage to minimize the overall change in VCO frequency with temperature. Techniques for generating the control voltage using digital and analog means are further disclosed.
摘要翻译：公开了用于补偿温度变化对压控振荡器（VCO）频率的影响的技术。在一个实施例中，辅助变容二极管耦合到VCO的LC箱。辅助变容二极管具有由温度依赖控制电压控制的电容，以最小化VCO频率随温度的总体变化。进一步公开了使用数字和模拟装置产生控制电压的技术。

2. 发明申请

US20090261917A1 AUXILIARY VARACTOR FOR TEMPERATURE COMPENSATION 有权
标题翻译：用于温度补偿的辅助变量
公开(公告)号：US20090261917A1
公开(公告)日：2009-10-22
申请号：US12107592
申请日：2008-04-22
申请人： Mazhareddin Taghivand , Conor Donovan , Jeongsik Yang , Sang-Oh Lee
发明人： Mazhareddin Taghivand , Conor Donovan , Jeongsik Yang , Sang-Oh Lee
IPC分类号： H03L1/02
CPC分类号： H03L1/023 , H03L1/025
摘要： Techniques for compensating for the effects of temperature change on voltage controlled oscillator (VCO) frequency are disclosed. In an embodiment, an auxiliary varactor is coupled to an LC tank of the VCO. The auxiliary varactor has a capacitance controlled by a temperature-dependant control voltage to minimize the overall change in VCO frequency with temperature. Techniques for generating the control voltage using digital and analog means are further disclosed.
摘要翻译：公开了用于补偿温度变化对压控振荡器（VCO）频率的影响的技术。在一个实施例中，辅助变容二极管耦合到VCO的LC箱。辅助变容二极管具有由温度依赖控制电压控制的电容，以最小化VCO频率随温度的总体变化。进一步公开了使用数字和模拟装置产生控制电压的技术。

3. 发明授权

US07851947B2 Methods and apparatuses for selectable voltage supply 有权
标题翻译：用于可选电压供应的方法和装置
公开(公告)号：US07851947B2
公开(公告)日：2010-12-14
申请号：US11935186
申请日：2007-11-05
申请人： Marco Cassia , Aristotele Hadjichristos , Conor Donovan , Sang-Oh Lee
发明人： Marco Cassia , Aristotele Hadjichristos , Conor Donovan , Sang-Oh Lee
IPC分类号： H02B1/24
CPC分类号： H03K17/693 , Y10T307/696 , Y10T307/747
摘要： A circuit which selects a supply voltage from a plurality of voltage supplies is presented. The circuit includes a first transistor configured to select a first voltage supply, a second transistor configured to select a second voltage supply, a first parasitic current inhibitor coupled the first transistor, the first voltage supply, and the second voltage supply, where the first parasitic current inhibitor automatically utilizes the voltage supply providing the highest voltage for preventing a substrate current from flowing through a bulk node of the first transistor, and a second parasitic current inhibitor coupled the second transistor, the first voltage supply, and the second voltage supply, where the second parasitic current inhibitor automatically utilizes the voltage supply providing the highest voltage for preventing a substrate current from flowing through a bulk node of the second transistor.
摘要翻译：提出了从多个电压源中选择电源电压的电路。该电路包括：第一晶体管，被配置为选择第一电压源;第二晶体管，被配置为选择第二电压源;耦合第一晶体管，第一电压源和第二电压源的第一寄生电流抑制器，其中第一寄生电流抑制器自动地利用提供最高电压的电压源来防止衬底电流流过第一晶体管的体节点，以及耦合第二晶体管，第一电压源和第二电压源的第二寄生电流抑制器，其中第二寄生电流抑制器自动利用提供最高电压的电压源来防止衬底电流流过第二晶体管的体节点。

4. 发明申请

US20090115253A1 METHODS AND APPARATUSES FOR SELECTABLE VOLTAGE SUPPLY 有权
标题翻译：用于选择电压供应的方法和装置
公开(公告)号：US20090115253A1
公开(公告)日：2009-05-07
申请号：US11935186
申请日：2007-11-05
申请人： Marco Cassia , Aristotele Hadjichristos , Conor Donovan , Sang-Oh Lee
发明人： Marco Cassia , Aristotele Hadjichristos , Conor Donovan , Sang-Oh Lee
IPC分类号： H02J1/00
CPC分类号： H03K17/693 , Y10T307/696 , Y10T307/747
摘要： A circuit which selects a supply voltage from a plurality of voltage supplies is presented. The circuit includes a first transistor configured to select a first voltage supply, a second transistor configured to select a second voltage supply, a first parasitic current inhibitor coupled the first transistor, the first voltage supply, and the second voltage supply, where the first parasitic current inhibitor automatically utilizes the voltage supply providing the highest voltage for preventing a substrate current from flowing through a bulk node of the first transistor, and a second parasitic current inhibitor coupled the second transistor, the first voltage supply, and the second voltage supply, where the second parasitic current inhibitor automatically utilizes the voltage supply providing the highest voltage for preventing a substrate current from flowing through a bulk node of the second transistor.
摘要翻译：提出了从多个电压源中选择电源电压的电路。该电路包括：第一晶体管，被配置为选择第一电压源;第二晶体管，被配置为选择第二电压源;耦合第一晶体管，第一电压源和第二电压源的第一寄生电流抑制器，其中第一寄生电流抑制器自动地利用提供最高电压的电压源来防止衬底电流流过第一晶体管的体节点，以及耦合第二晶体管，第一电压源和第二电压源的第二寄生电流抑制器，其中第二寄生电流抑制器自动利用提供最高电压的电压源来防止衬底电流流过第二晶体管的体节点。

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