专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

81. 发明授权

US07890066B2 Radio frequency integrated circuit electro-static discharge circuit 有权
标题翻译：射频集成电路静电放电电路
公开(公告)号：US07890066B2
公开(公告)日：2011-02-15
申请号：US11781816
申请日：2007-07-23
申请人： Ahmadreza Rofougaran
发明人： Ahmadreza Rofougaran
IPC分类号： H04Q11/12
CPC分类号： H01Q1/002 , H01L27/0251 , H01Q1/50 , H03F1/52 , H03F3/19 , H03F3/245 , H03F2200/441 , H03F2200/444 , H03F2200/451 , H03F2200/534 , H03F2200/541
摘要： The radio frequency integrated circuit (RFIC) electrostatic discharge (ESD) circuit includes an integrated circuit pad and a radio frequency (RF) ESD circuit. The integrated circuit pad provides coupling to an antenna. The RF ESD circuit is coupled to the integrated circuit pad, wherein the RF ESD circuit provides ESD protection at the integrated circuit pad, provides coupling of inbound RF signals from the antenna to low noise amplifier, and provides coupling of outbound RF signals from a power amplifier to the antenna.
摘要翻译：射频集成电路（RFIC）静电放电（ESD）电路包括集成电路板和射频（RF）ESD电路。集成电路板提供耦合到天线。 RF ESD电路耦合到集成电路焊盘，其中RF ESD电路在集成电路焊盘处提供ESD保护，提供从天线到低噪声放大器的入站RF信号的耦合，并且提供来自功率的出站RF信号的耦合放大器到天线。

82. 发明授权

US07881029B1 Depletion-mode field effect transistor based electrostatic discharge protection circuit 有权
标题翻译：消耗型场效应晶体管的静电放电保护电路
公开(公告)号：US07881029B1
公开(公告)日：2011-02-01
申请号：US12168178
申请日：2008-07-07
申请人： Jason Yuxin Li , Walter A. Wohlmuth , Swaminathan Muthukrishnan , Christian Rye Iversen , Nathaniel Peachey
发明人： Jason Yuxin Li , Walter A. Wohlmuth , Swaminathan Muthukrishnan , Christian Rye Iversen , Nathaniel Peachey
IPC分类号： H02H3/22
CPC分类号： H03F1/52 , H01Q1/50 , H03F2200/441
摘要： The present invention relates to an electrostatic discharge (ESD) clamp circuit that is used to protect other circuitry from high voltage ESD events. The ESD clamp circuit may include a field effect transistor (FET) element as a clamping element, which is triggered by using a drain-to-gate capacitance and a drain-to-gate resistance of the FET element and a resistive element as a voltage divider to divide down an ESD voltage to provide a triggering gate voltage of the FET element. In its simplest embodiment, the ESD clamp circuit includes only an FET element, a resistive element, a source-coupled level shifting diode, and a reverse protection diode. Therefore, the ESD clamp circuit may be small compared to other ESD protection circuits. The simplicity of the ESD clamp circuit may minimize parasitic capacitances, thereby maximizing linearity of the ESD clamp circuit over a wide frequency range.
摘要翻译：本发明涉及用于保护其它电路免受高电压ESD事件的静电放电（ESD）钳位电路。 ESD钳位电路可以包括作为钳位元件的场效应晶体管（FET）元件，其通过使用FET元件的漏极 - 栅极电容和漏极 - 栅极电阻和电阻元件作为电压来触发以分隔ESD电压以提供FET元件的触发栅极电压。在其最简单的实施例中，ESD钳位电路仅包括FET元件，电阻元件，源极耦合电平移位二极管和反向保护二极管。因此，与其他ESD保护电路相比，ESD钳位电路可能较小。 ESD钳位电路的简单性可以使寄生电容最小化，从而在宽频率范围内最大化ESD钳位电路的线性度。

83. 发明授权

US07714655B2 Closed loop surge protection technique for differential amplifiers 有权
标题翻译：差分放大器的闭环浪涌保护技术
公开(公告)号：US07714655B2
公开(公告)日：2010-05-11
申请号：US12117987
申请日：2008-05-09
申请人： Nir Matalon
发明人： Nir Matalon
IPC分类号： H03F3/45
CPC分类号： H03F1/526 , H03F3/3023 , H03F3/45179 , H03F2200/441 , H03F2203/45364 , H03F2203/45394 , H03F2203/45396
摘要： A differential amplifier with surge protection is described. The differential amplifier includes a first output driver device, a second output driver device, a first replica device, a second replica device, a current comparator, and a clamp circuit. The first replica device is configured to be a replica of the first output driver device. The second replica device is configured to be a replica of the second output driver device. The current comparator is configured to generate a threshold current, and to compare the threshold current to a first current through the first replica device and a second current through the second replica device. The clamp circuit is configured to limit a third current through the first output driver device and a fourth current through the second output driver device if the current comparator determines that the threshold current is greater than the first current or the second current.
摘要翻译：描述了具有浪涌保护的差分放大器。差分放大器包括第一输出驱动器器件，第二输出驱动器器件，第一复制器件，第二复制器件，电流比较器和钳位电路。第一复制设备被配置为第一输出驱动器设备的副本。第二复制设备被配置为第二输出驱动器设备的副本。当前比较器被配置为产生阈值电流，并且将阈值电流与通过第一复制设备的第一电流和通过第二复制设备的第二电流进行比较。钳位电路被配置为如果电流比较器确定阈值电流大于第一电流或第二电流，则限制通过第一输出驱动器器件的第三电流和通过第二输出驱动器器件的第四电流。

84. 发明申请

US20100103572A1 AMPLIFIER WITH IMPROVED ESD PROTECTION CIRCUITRY 有权
标题翻译：具有改进的ESD保护电路的放大器
公开(公告)号：US20100103572A1
公开(公告)日：2010-04-29
申请号：US12260901
申请日：2008-10-29
申请人： Eugene R. Worley
发明人： Eugene R. Worley
IPC分类号： H02H9/04
CPC分类号： H03F1/523 , H01L27/0255 , H03F3/195 , H03F3/45183 , H03F2200/294 , H03F2200/441 , H03F2200/444 , H03F2200/492 , H03F2203/45314 , H03F2203/45386 , H03F2203/45568
摘要： An amplifier (e.g., an LNA) with improved ESD protection circuitry is described. In one exemplary design, the amplifier includes a transistor, an inductor, and a clamp circuit. The transistor has a gate coupled to a pad and provides signal amplification for the amplifier. The inductor is coupled to a source of the transistor and provides source degeneration for the transistor. The clamp circuit is coupled between the gate and source of the transistor and provides ESD protection for the transistor. The clamp circuit may include at least one diode coupled between the gate and source of the transistor. The clamp circuit conducts current through the inductor to generate a voltage drop across the inductor when a large voltage pulse is applied to the pad. The gate-to-source voltage (Vgs) of the transistor is reduced by the voltage drop across the inductor, which may improve the reliability of the transistor.
摘要翻译：描述了具有改进的ESD保护电路的放大器（例如，LNA）。在一个示例性设计中，放大器包括晶体管，电感器和钳位电路。晶体管具有耦合到焊盘并且为放大器提供信号放大的栅极。电感器耦合到晶体管的源极，并为晶体管提供源极退化。钳位电路耦合在晶体管的栅极和源极之间，并为晶体管提供ESD保护。钳位电路可以包括耦合在晶体管的栅极和源极之间的至少一个二极管。当对焊盘施加大的电压脉冲时，钳位电路通过电感器传导电流，以在电感器两端产生电压降。晶体管的栅极 - 源极电压（Vgs）被电感器两端的电压降降低，这可能会提高晶体管的可靠性。

85. 发明申请

US20090278602A1 CLOSED LOOP SURGE PROTECTION TECHNIQUE FOR DIFFERENTIAL AMPLIFIERS 有权
标题翻译：用于差分放大器的封闭环路保护技术
公开(公告)号：US20090278602A1
公开(公告)日：2009-11-12
申请号：US12117987
申请日：2008-05-09
申请人： Nir Matalon
发明人： Nir Matalon
IPC分类号： H03F3/45
CPC分类号： H03F1/526 , H03F3/3023 , H03F3/45179 , H03F2200/441 , H03F2203/45364 , H03F2203/45394 , H03F2203/45396
摘要： A differential amplifier with surge protection is described. The differential amplifier includes a first output driver device, a second output driver device, a first replica device, a second replica device, a current comparator, and a clamp circuit. The first replica device is configured to be a replica of the first output driver device. The second replica device is configured to be a replica of the second output driver device. The current comparator is configured to generate a threshold current, and to compare the threshold current to a first current through the first replica device and a second current through the second replica device. The clamp circuit is configured to limit a third current through the first output driver device and a fourth current through the second output driver device if the current comparator determines that the threshold current is greater than the first current or the second current.
摘要翻译：描述了具有浪涌保护的差分放大器。差分放大器包括第一输出驱动器器件，第二输出驱动器器件，第一复制器件，第二复制器件，电流比较器和钳位电路。第一复制设备被配置为第一输出驱动器设备的副本。第二复制设备被配置为第二输出驱动器设备的副本。当前比较器被配置为产生阈值电流，并且将阈值电流与通过第一复制设备的第一电流和通过第二复制设备的第二电流进行比较。钳位电路被配置为如果电流比较器确定阈值电流大于第一电流或第二电流，则限制通过第一输出驱动器器件的第三电流和通过第二输出驱动器器件的第四电流。

86. 发明授权

US07397676B2 Class E amplifier with inductive clamp 有权
标题翻译： E级放大器带感应钳
公开(公告)号：US07397676B2
公开(公告)日：2008-07-08
申请号：US11619246
申请日：2007-01-03
申请人： Daniel J. Lincoln , Paul G. Bennett
发明人： Daniel J. Lincoln , Paul G. Bennett
IPC分类号： H02H7/122
CPC分类号： H02H7/122 , H02M7/48 , H02M7/493 , H02M7/537 , H02M7/538 , H02M7/5387 , H03F1/52 , H03F3/2173 , H03F3/2176 , H03F2200/33 , H03F2200/441
摘要： A power supply including an inverter receiving a DC input signal from a DC input source (11). The inverter is implemented as a single-ended inverter. Each inverter is driven by a signal source (13A, 13B), which outputs an AC signal. The output from each inverter is input to a first stage harmonic filter. The power supply includes an output circuit that includes a rectifier (D1) arranged about a point so that if the inverter attempts to drive the point beyond a predetermined voltage, the rectifier conducts in order to return at least one of power and current to the DC input source. The output from the first harmonic filter (L1A, C1; L1B, C1) is output to a second harmonic filter (L2, C2) and is then output from the power supply.
摘要翻译：一种电源，包括从DC输入源（11）接收DC输入信号的逆变器。逆变器实现为单端逆变器。每个逆变器由输出AC信号的信号源（13A，13B）驱动。每个逆变器的输出输入到第一级谐波滤波器。电源包括输出电路，其包括围绕点布置的整流器（D1），使得如果逆变器试图将点驱动超过预定电压，则整流器进行导通，以将功率和电流中的至少一个返回到直流输入源。来自第一谐波滤波器（L 1 A，C 1; L 1 B，C 1）的输出被输出到二次谐波滤波器（L 2，C 2），然后从电源输出。

87. 发明申请

US20080014878A1 Radio Frequency Integrated Circuit Electro-Static Discharge Circuit 有权
标题翻译：射频集成电路静电放电电路
公开(公告)号：US20080014878A1
公开(公告)日：2008-01-17
申请号：US11781816
申请日：2007-07-23
申请人： Ahmadreza (Reza) Rofougaran
发明人： Ahmadreza (Reza) Rofougaran
IPC分类号： H04B1/04
CPC分类号： H01Q1/002 , H01L27/0251 , H01Q1/50 , H03F1/52 , H03F3/19 , H03F3/245 , H03F2200/441 , H03F2200/444 , H03F2200/451 , H03F2200/534 , H03F2200/541
摘要： The radio frequency integrated circuit (RFIC) electrostatic discharge (ESD) circuit includes an integrated circuit pad and a radio frequency (RF) ESD circuit. The integrated circuit pad provides coupling to an antenna. The RF ESD circuit is coupled to the integrated circuit pad, wherein the RF ESD circuit provides ESD protection at the integrated circuit pad, provides coupling of inbound RF signals from the antenna to low noise amplifier, and provides coupling of outbound RF signals from a power amplifier to the antenna.
摘要翻译：射频集成电路（RFIC）静电放电（ESD）电路包括集成电路板和射频（RF）ESD电路。集成电路板提供耦合到天线。 RF ESD电路耦合到集成电路焊盘，其中RF ESD电路在集成电路焊盘处提供ESD保护，提供从天线到低噪声放大器的入站RF信号的耦合，并且提供来自功率的出站RF信号的耦合放大器到天线。

88. 发明申请

US20060017504A1 Clamping circuit for operational amplifiers 有权
标题翻译：运算放大器的钳位电路
公开(公告)号：US20060017504A1
公开(公告)日：2006-01-26
申请号：US11181231
申请日：2005-07-14
申请人： Philippe Deval , Christian Albrecht
发明人： Philippe Deval , Christian Albrecht
IPC分类号： H03F3/45
CPC分类号： H03G11/00 , H03F3/3022 , H03F3/45183 , H03F2200/441 , H03F2203/45552 , H03F2203/45636
摘要： A differential input operational amplifier has a voltage clamp differential transistor pair coupled to an input differential transistor pair of the operational amplifier. The voltage clamp differential transistor pair limits the output voltage of the operational amplifier by taking over control of the operational amplifier circuits from the input differential transistor pair as the output voltage approaches a clamp voltage value. A reference voltage may be used to set the output voltage at which the input differential transistor pair will be clamped by the voltage clamp differential transistor pair. Below the clamp voltage, operation of the input differential transistor pair will not be affected. At the clamp voltage the input differential transistor pair will no longer control the output of the differential amplifier, rather the voltage clamp differential transistor pair will control the maximum voltage output of the differential amplifier. Both positive and negative limiting of the operational amplifier output voltage may be accomplished.
摘要翻译：差分输入运算放大器具有耦合到运算放大器的输入差分晶体管对的电压钳位差分晶体管对。当输出电压接近钳位电压值时，电压钳位差分晶体管对通过从输入差分晶体管对接管运算放大器电路来限制运算放大器的输出电压。可以使用参考电压来设置输入差分晶体管对将由电压钳位差分晶体管对钳位的输出电压。低于钳位电压，输入差分晶体管对的工作不会受到影响。在钳位电压下，输入差分晶体管对将不再控制差分放大器的输出，而电压钳位差分晶体管对将控制差分放大器的最大电压输出。可以实现运算放大器输出电压的正和负极限。

89. 发明申请

US20030189453A1 Radio frequency clamping circuit 有权
标题翻译：射频钳位电路
公开(公告)号：US20030189453A1
公开(公告)日：2003-10-09
申请号：US10385800
申请日：2003-03-11
发明人： Marlin C. Smith JR.
IPC分类号： H02H009/04 , H02H003/20 , H03L005/00
CPC分类号： H03K17/30 , H03F2200/441 , H03K5/08 , H03K17/74 , H03M1/1295
摘要： A clamping circuit (10) including an input/output node (12), adapted to be coupled to the protected circuit or component; a first diode (D1) having an anode connected to the input/output node (12); a second diode (D2) having a cathode connected to the input/output node (12); a third diode (D3) connected between the cathode of the first diode (D1) at a first node (14) and the anode of the second diode (D2) at a second node (16); a first arrangement for supplying a first potential at the cathode of the first diode at first node (14); a second arrangement for supplying a second potential at the anode of the second diode at second node (16); a first capacitor (C1) connected between the cathode of the first diode at first node (14) and ground; and a second capacitor connected between the anode of the second diode at second node (16) and ground. In the illustrative embodiment, the anode of the third diode (D3) is connected to the first node (14), the first arrangement includes a first power supply and a first resistor (R1), and the second arrangement includes a second power supply and a second resistor (R2). The illustrative embodiment further includes a third resistor (R3) connected between the first node (14) and ground and a fourth resistor (R4) connected between the second node (16) and ground.
摘要翻译：一种包括输入/输出节点（12）的钳位电路（10），适于耦合到受保护的电路或部件; 具有连接到所述输入/输出节点（12）的阳极的第一二极管（D1）; 具有连接到所述输入/输出节点（12）的阴极的第二二极管（D2）; 连接在第一节点（14）处的第一二极管（D1）的阴极和第二节点（16）处的第二二极管（D2）的阳极之间的第三二极管（D3）; 用于在第一节点（14）处在第一二极管的阴极处提供第一电位的第一装置; 用于在第二节点（16）处在第二二极管的阳极处提供第二电位的第二装置; 连接在第一节点（14）的第一二极管的阴极与地之间的第一电容器（C1）以及连接在第二节点（16）处的第二二极管的阳极与地之间的第二电容器。在说明性实施例中，第三二极管（D3）的阳极连接到第一节点（14），第一装置包括第一电源和第一电阻器（R1），第二装置包括第二电源和第二电阻器（R2）。说明性实施例还包括连接在第一节点（14）和地之间的第三电阻器（R3）和连接在第二节点（16）和地之间的第四电阻器（R4）。

90. 发明授权

US12063014B2 Amplifier having electrostatic discharge and surge protection circuit 有权
公开(公告)号：US12063014B2
公开(公告)日：2024-08-13
申请号：US17580549
申请日：2022-01-20
申请人： SKYWORKS SOLUTIONS, INC.
发明人： Myunghwan Park , Jermyn Tseng , John Tzung-Yin Lee , David Steven Ripley
IPC分类号： H03F1/52 , H01L27/02 , H03F3/195
CPC分类号： H03F1/523 , H01L27/0266 , H03F3/195 , H03F2200/441 , H03F2200/451
摘要： Amplifier having electrostatic discharge and surge protection circuit. In some embodiments, a radio-frequency integrated circuit can include an amplifier, a controller configured to control operation of the amplifier, and a clamp circuit configured to provide electrostatic discharge protection and surge protection for either or both of the amplifier and the controller. The clamp circuit can include a feedback combination clamp implemented to direct a current associated with either or both of an electrostatic discharge and a surge at a first node to a second node.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式