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1. 发明授权

US08000067B1 Method and apparatus for improving supply noise rejection 有权
标题翻译：改善供应噪声抑制的方法和装置
公开(公告)号：US08000067B1
公开(公告)日：2011-08-16
申请号：US10811031
申请日：2004-03-26
申请人： Xiaodong Jin , Sehat Sutardja , Lawrence Tse , King Chun Tsai
发明人： Xiaodong Jin , Sehat Sutardja , Lawrence Tse , King Chun Tsai
IPC分类号： H02H9/00
CPC分类号： H02H9/046
摘要： An electrostatic discharge (ESD) circuit operable to protect an internal circuit from ESD events and protect the internal circuit from high-side supply noise.
摘要翻译：静电放电（ESD）电路可操作以保护内部电路免受ESD事件的影响，并保护内部电路免受高端电源噪声的影响。

2. 发明授权

US07751164B1 Electrostatic discharge protection circuit 失效
标题翻译：静电放电保护电路
公开(公告)号：US07751164B1
公开(公告)日：2010-07-06
申请号：US12154706
申请日：2008-05-27
申请人： Xiaodong Jin , Sehat Sutardja , Lawrence Tse , King Chun Tsai
发明人： Xiaodong Jin , Sehat Sutardja , Lawrence Tse , King Chun Tsai
IPC分类号： H02H9/00 , H02H3/22 , H03K17/16
CPC分类号： H01L23/66 , H01L24/06 , H01L24/48 , H01L24/49 , H01L27/0251 , H01L2223/6611 , H01L2223/6655 , H01L2224/05553 , H01L2224/05554 , H01L2224/05599 , H01L2224/4809 , H01L2224/48091 , H01L2224/48092 , H01L2224/484 , H01L2224/49113 , H01L2224/85399 , H01L2924/00014 , H01L2924/01014 , H01L2924/01033 , H01L2924/14 , H01L2924/19041 , H01L2924/19042 , H01L2924/19043 , H01L2924/19104 , H01L2924/30105 , H01L2924/30107 , H01L2924/3011 , H01L2924/30111 , H01L2224/45099 , H01L2924/00
摘要： A method for reducing a parasitic capacitance of an electrostatic discharge (ESD) protection circuit for an integrated circuit (IC) includes providing an ESD protection circuit including a plurality of transistors; coupling one end of a resistor to a shared drain of the plurality of transistors; and coupling an opposite end of the resistor to at least one of an input pad of the IC, a blocking capacitor of the IC and a transistor in the IC.
摘要翻译：一种用于降低集成电路（IC）的静电放电（ESD）保护电路的寄生电容的方法包括提供包括多个晶体管的ESD保护电路; 将电阻器的一端耦合到所述多个晶体管的共享漏极; 以及将所述电阻器的相对端耦合到所述IC的输入焊盘，所述IC的隔离电容器和所述IC中的晶体管中的至少一个。

3. 发明授权

US07002220B1 ESD protection circuit 失效
标题翻译： ESD保护电路
公开(公告)号：US07002220B1
公开(公告)日：2006-02-21
申请号：US10397454
申请日：2003-03-26
申请人： Xiaodong Jin , Sehat Sutardja , Lawrence Tse , King Chun Tsai
发明人： Xiaodong Jin , Sehat Sutardja , Lawrence Tse , King Chun Tsai
IPC分类号： H01L23/62
CPC分类号： H01L23/66 , H01L24/06 , H01L24/48 , H01L24/49 , H01L27/0251 , H01L2223/6611 , H01L2223/6655 , H01L2224/05553 , H01L2224/05554 , H01L2224/05599 , H01L2224/4809 , H01L2224/48091 , H01L2224/48092 , H01L2224/484 , H01L2224/49113 , H01L2224/85399 , H01L2924/00014 , H01L2924/01014 , H01L2924/01033 , H01L2924/14 , H01L2924/19041 , H01L2924/19042 , H01L2924/19043 , H01L2924/19104 , H01L2924/30105 , H01L2924/30107 , H01L2924/3011 , H01L2924/30111 , H01L2224/45099 , H01L2924/00
摘要： An electrostatic discharge (ESD) protection circuit is provided for protecting transistors of an integrated circuit (IC) from ESD. The ESD protection circuit includes n transistors with n gates and less than n drains where n is an integer greater than 1. At least m resistors have first ends that communicate with at least one of the transistors of the IC, a blocking capacitor of the IC, an input pad of the IC, and an output pad of the IC, and second ends that connect to corresponding drain terminals of said drains where m is an integer greater than or equal to n/2.
摘要翻译：提供了一种静电放电（ESD）保护电路，用于保护集成电路（IC）的晶体管与ESD。 ESD保护电路包括具有n个栅极且小于n个漏极的n个晶体管，其中n是大于1的整数。至少m个电阻器具有与IC的至少一个晶体管，IC的隔离电容器，，IC的输入焊盘和IC的输出焊盘，以及连接到所述漏极的相应漏极端子的第二端，其中m是大于或等于n / 2的整数。

4. 发明授权

US08027644B2 Transceiver system including dual low-noise amplifiers 有权
标题翻译：收发系统包括双低音放大器
公开(公告)号：US08027644B2
公开(公告)日：2011-09-27
申请号：US12881226
申请日：2010-09-14
申请人： Xiaodong Jin , Sehat Sutardja , Lawrence Tse
发明人： Xiaodong Jin , Sehat Sutardja , Lawrence Tse
IPC分类号： H04B1/38
CPC分类号： H04B1/0064 , H04B7/0805
摘要： A transceiver system includes a first receive path with a first antenna configured to receive first signals, a first configuration switch, a first low noise amplifier configured to amplify the first signals, a second configuration switch, and a receiver. The first receive path is selectively configured to supply the amplified first signals to the receiver via the first antenna, the first configuration switch, the first low noise amplifier, and the second configuration switch. A second receive path includes a second antenna configured to receive second signals, a second low noise amplifier configured to amplify the second signals, the second configuration switch, and the receiver. The second receive path (i) includes fewer configuration switches than the first receive path and (ii) is selectively configured to supply the amplified second signals to the receiver via the second antenna, the second low noise amplifier, and the second configuration switch.
摘要翻译：收发机系统包括具有被配置为接收第一信号的第一天线的第一接收路径，第一配置开关，被配置为放大第一信号的第一低噪声放大器，第二配置开关和接收器。第一接收路径被选择性地配置为经由第一天线，第一配置开关，第一低噪声放大器和第二配置开关将放大的第一信号提供给接收器。第二接收路径包括被配置为接收第二信号的第二天线，配置成放大第二信号的第二低噪声放大器，第二配置开关和接收器。第二接收路径（i）包括比第一接收路径更少的配置开关，以及（ii）被选择性地配置为经由第二天线，第二低噪声放大器和第二配置开关将经放大的第二信号提供给接收机。

5. 发明授权

US07796952B1 Transceiver system including dual low-noise amplifiers 有权
标题翻译：收发系统包括双低音放大器
公开(公告)号：US07796952B1
公开(公告)日：2010-09-14
申请号：US10701626
申请日：2003-11-06
申请人： Xiaodong Jin , Sehat Sutardja , Lawrence Tse
发明人： Xiaodong Jin , Sehat Sutardja , Lawrence Tse
IPC分类号： H04B1/38
CPC分类号： H04B1/0064 , H04B7/0805
摘要： A system for communicating information signals includes a receiver in selective communication with a first antenna and a second antenna. The receiver is configured to selectively receive information signals via the first or second antenna. The system includes a first low-noise amplifier in communication with the first antenna and in selective communication with the receiver. The first low-noise amplifier is configured to amplify a first information signal received by the first antenna to generate a first amplified signal. The system includes a second low-noise amplifier in communication with the second antenna and in selective communication with the receiver. At least the first and second low-noise amplifiers are formed on a monolithic substrate. The second low-noise amplifier is configured to amplify a second information signal received by the second antenna to generate a second amplified signal. Either the first or second amplified signal is selectively applied to the receiver.
摘要翻译：用于传送信息信号的系统包括与第一天线和第二天线选择性通信的接收机。接收器被配置为经由第一或第二天线选择性地接收信息信号。该系统包括与第一天线通信并与接收机选择性通信的第一低噪声放大器。第一低噪声放大器被配置为放大由第一天线接收的第一信息信号以产生第一放大信号。该系统包括与第二天线通信并与接收机选择性通信的第二低噪声放大器。至少第一和第二低噪声放大器形成在单片基板上。第二低噪声放大器被配置为放大由第二天线接收的第二信息信号以产生第二放大信号。第一或第二放大信号被选择性地施加到接收器。

6. 发明申请

US20110003562A1 TRANSCEIVER SYSTEM INCLUDING DUAL LOW-NOISE AMPLIFIERS BACKGROUND 有权
标题翻译：包括双低噪声放大器的收发器系统背景技术
公开(公告)号：US20110003562A1
公开(公告)日：2011-01-06
申请号：US12881226
申请日：2010-09-14
申请人： Xiaodong Jin , Sehat Sutardja , Lawrence Tse
发明人： Xiaodong Jin , Sehat Sutardja , Lawrence Tse
IPC分类号： H04B1/38
CPC分类号： H04B1/0064 , H04B7/0805
摘要： A transceiver system includes a first receive path with a first antenna configured to receive first signals, a first configuration switch, a first low noise amplifier configured to amplify the first signals, a second configuration switch, and a receiver. The first receive path is selectively configured to supply the amplified first signals to the receiver via the first antenna, the first configuration switch, the first low noise amplifier, and the second configuration switch. A second receive path includes a second antenna configured to receive second signals, a second low noise amplifier configured to amplify the second signals, the second configuration switch, and the receiver. The second receive path (i) includes fewer configuration switches than the first receive path and (ii) is selectively configured to supply the amplified second signals to the receiver via the second antenna, the second low noise amplifier, and the second configuration switch.
摘要翻译：收发机系统包括具有被配置为接收第一信号的第一天线的第一接收路径，第一配置开关，被配置为放大第一信号的第一低噪声放大器，第二配置开关和接收器。第一接收路径被选择性地配置为经由第一天线，第一配置开关，第一低噪声放大器和第二配置开关将放大的第一信号提供给接收器。第二接收路径包括被配置为接收第二信号的第二天线，配置成放大第二信号的第二低噪声放大器，第二配置开关和接收器。第二接收路径（i）包括比第一接收路径更少的配置开关，以及（ii）被选择性地配置为经由第二天线，第二低噪声放大器和第二配置开关将经放大的第二信号提供给接收机。

7. 发明授权

US07855604B1 Protection circuit and method for RF power amplifiers in WLAN transceivers 有权
标题翻译： WLAN收发器中RF功率放大器的保护电路和方法
公开(公告)号：US07855604B1
公开(公告)日：2010-12-21
申请号：US12351040
申请日：2009-01-09
申请人： Shuran Wei , Lawrence Tse , Sehat Sutardja
发明人： Shuran Wei , Lawrence Tse , Sehat Sutardja
IPC分类号： H03F1/52
CPC分类号： H03F1/52 , H03F1/523 , H03F3/45183 , H03F3/72 , H03F2200/372 , H03F2200/471 , H03F2200/78 , H03F2203/45544 , H03F2203/45622 , H03F2203/45638
摘要： A transmitter system includes a transmitter with a power amplifier. An antenna communicates with the power amplifier. A protection circuit generates a sensed signal that varies with an impedance of the antenna and reduces an output of the power amplifier in response to the sensed signal exceeding a predetermined threshold.
摘要翻译：发射机系统包括具有功率放大器的发射机。天线与功率放大器通信。保护电路产生随着天线的阻抗而变化的感测信号，并且响应于超过预定阈值的感测信号而减小功率放大器的输出。

8. 发明授权

US06856200B1 Protection circuit and method for RF power amplifiers in WLAN tranceivers 有权
标题翻译： WLAN收发器中RF功率放大器的保护电路和方法
公开(公告)号：US06856200B1
公开(公告)日：2005-02-15
申请号：US10246870
申请日：2002-09-19
申请人： Shuran Wei , Lawrence Tse , Sehat Sutardja
发明人： Shuran Wei , Lawrence Tse , Sehat Sutardja
IPC分类号： H03C1/62 , H03F1/52 , H03F3/45 , H03F3/72
CPC分类号： H03F1/52 , H03F1/523 , H03F3/45183 , H03F3/72 , H03F2200/372 , H03F2200/471 , H03F2200/78 , H03F2203/45544 , H03F2203/45622 , H03F2203/45638
摘要： A protection circuit for a power amplifier of a radio frequency transmitter includes a sensing circuit that generates a sensed signal based on an output of the power amplifier. A reference signal generator generates a reference signal. A comparator communicates with the sensing circuit and the reference signal generator and outputs a first state when the reference signal exceeds the sensed signal and a second state when the sensed signal exceeds the reference signal. A turn off circuit turns off the power amplifier when the comparator is in the second state.
摘要翻译：用于射频发射机的功率放大器的保护电路包括基于功率放大器的输出产生感测信号的感测电路。参考信号发生器产生参考信号。比较器与检测电路和参考信号发生器进行通信，当参考信号超过感测信号时，比较器输出第一状态，当感测信号超过参考信号时，比较器输出第二状态。当比较器处于第二状态时，关断电路关闭功率放大器。

9. 发明授权

US07477107B1 Protection circuit and method for RF power amplifiers in WLAN transceivers 有权
标题翻译： WLAN收发器中RF功率放大器的保护电路和方法
公开(公告)号：US07477107B1
公开(公告)日：2009-01-13
申请号：US10839679
申请日：2004-05-04
申请人： Shuran Wei , Lawrence Tse , Sehat Sutardja
发明人： Shuran Wei , Lawrence Tse , Sehat Sutardja
IPC分类号： H03F1/52
CPC分类号： H03F1/52 , H03F1/523 , H03F3/45183 , H03F3/72 , H03F2200/372 , H03F2200/471 , H03F2200/78 , H03F2203/45544 , H03F2203/45622 , H03F2203/45638
摘要： A protection circuit for a power amplifier of a radio frequency transmitter includes a sensing circuit that generates a sensed signal based on an output of the power amplifier. A reference signal generator generates a reference signal. A comparator communicates with the sensing circuit and the reference signal generator and outputs a first state when the reference signal exceeds the sensed signal and a second state when the sensed signal exceeds the reference signal. A turn off circuit turns off the power amplifier when the comparator is in the second state.
摘要翻译：用于射频发射机的功率放大器的保护电路包括基于功率放大器的输出产生感测信号的感测电路。参考信号发生器产生参考信号。比较器与检测电路和参考信号发生器进行通信，当参考信号超过感测信号时，比较器输出第一状态，当感测信号超过参考信号时，比较器输出第二状态。当比较器处于第二状态时，关断电路关闭功率放大器。

10. 发明公开

US20240356499A1 ULTRA LINEAR CLASS AB, RF AMPLIFIER TOPOLOGY 审中-公开
公开(公告)号：US20240356499A1
公开(公告)日：2024-10-24
申请号：US18622565
申请日：2024-03-29
申请人： Sehat Sutardja
发明人： Sehat Sutardja
IPC分类号： H03F1/56 , H03F3/24
CPC分类号： H03F1/565 , H03F3/245 , H03F2200/222 , H03F2200/387 , H03F2200/451
摘要： An amplifier system comprising an input matching network configured to receive an input signal from a signal source. The input matching network is configured to impedance match between the amplifier system and the signal source. An input transformer is configured to receive the impedance matched input signal and perform voltage step down and current step up. An amplifier is configured to receive and amplify an output signal from the input transformer to generate an amplified signal. A low winding ratio output transformer provides isolation between an antenna and amplifier. An output matching network is configured to impedance match to an antenna and provide voltage step up. The input transformer may have a ratio of 2N:N, such as 2:1 ratio. At least one center tap of the input transformer may connect to a bias voltage. The amplifier system may be configured for operation in the radio frequency band.

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