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    • 45. 发明授权
    • 20V to 250V high current ASIC PIN diode driver
    • 20V至250V大电流ASIC PIN二极管驱动器
    • US09048840B2
    • 2015-06-02
    • US13330858
    • 2011-12-20
    • Chengxin LiuChristopher D. WeigandRichard J. GiacchinoScott Vasquez
    • Chengxin LiuChristopher D. WeigandRichard J. GiacchinoScott Vasquez
    • H03K3/00H03K17/74H03K17/76H03K3/356
    • H03K17/74H03K3/356182H03K17/76
    • An integrated circuit including a first circuit, a second circuit, a third circuit, a first complementary pair of transistors, and a second complementary pair of transistors. The first circuit may be configured to generate a first input signal in response to a first control input signal. The second circuit may be configured to generate a first output signal and a second output signal in response to the first input signal and a bias signal. The third circuit may be configured to generate the bias signal in response to a bias input signal. The first complementary pair of transistors may be configured to drive a first series output of the integrated circuit in response to the first output signal. The second complementary pair of transistors may be configured to drive a first shunt output of the integrated circuit in response to the second output signal.
    • 一种集成电路,包括第一电路,第二电路,第三电路,第一互补对晶体管和第二互补晶体管对。 第一电路可以被配置为响应于第一控制输入信号而产生第一输入信号。 第二电路可以被配置为响应于第一输入信号和偏置信号而产生第一输出信号和第二输出信号。 第三电路可以被配置为响应偏置输入信号产生偏置信号。 第一互补晶体管对可以被配置为响应于第一输出信号来驱动集成电路的第一串联输出。 第二互补晶体管对可以被配置为响应于第二输出信号来驱动集成电路的第一分流输出。
    • 48. 发明授权
    • Integrated circuit having a variable RF resistor
    • 具有可变RF电阻的集成电路
    • US5969561A
    • 1999-10-19
    • US035368
    • 1998-03-05
    • Michael E. McGillan
    • Michael E. McGillan
    • H03H11/24H03K17/62H03K17/76H04B1/48H03K5/08
    • H03H11/24H03K17/6221H03K17/76H04B1/48
    • A bipolar radio frequency (RF) integrated circuit having a functional equivalent of a PIN diode. The RF integrated circuit includes a low frequency lateral PNP transistor having an emitter having a P+ region, a collector having a P+ region, a base having an N+ region and an N region having a current dependent stored charge having a relatively low level when no current is flowing between the emitter and a junction connecting the base and collector. An RF resistance between the emitter and the junction is controlled by a bias applied from the emitter to the junction. By varying the bias, the low frequency lateral PNP transistor from the emitter to the junction is used as a variable RF resistor or as an RF signal carrying component in a variable attenuator or RF switch.
    • 具有PIN二极管功能等效的双极射频(RF)集成电路。 RF集成电路包括具有P +区域的发射极,具有P +区域的集电极,具有N +区域的基极和具有电流相关存储电荷的N区域的低频横向PNP晶体管,当没有电流时具有相对低的电平 在发射极和连接基极和集电极的连接点之间流动。 发射极和结之间的RF电阻由从发射极到结的施加的偏置来控制。 通过改变偏置,从发射极到结的低频横向PNP晶体管用作可变RF电阻器,或者用作可变衰减器或RF开关中的RF信号承载元件。
    • 50. 发明授权
    • Driver circuit for semiconductor test system
    • 半导体测试系统的驱动电路
    • US5781059A
    • 1998-07-14
    • US716996
    • 1996-09-20
    • Hiroyuki Shiotsuka
    • Hiroyuki Shiotsuka
    • G01R31/28G01R31/319H03K17/76H03K19/00H03K19/0175H03K17/62
    • H03K17/76G01R31/31924
    • A driver circuit for a semiconductor test system generates test signals having predetermined voltage levels without being affected by stray capacitances. The driver circuit includes: a buffer amplifier for supplying test signals having predetermined voltage levels; a first diode bridge connected to a first voltage source for providing a first voltage level to the buffer amplifier where the first diode bridge has an upper node and an lower; a second diode bridge connected to a second voltage source for providing a second voltage level to the buffer amplifier where the second diode bridge has an upper node and an lower node; a third diode bridge connected to a third voltage source for providing a third voltage level to the buffer amplifier where the third diode bridge has an upper node and an lower node; a fourth diode bridge connected between the first voltage source and the lower node of the third diode bridge; and a fifth diode bridge connected between the second voltage source and the upper node of the third diode bridge.
    • 用于半导体测试系统的驱动器电路产生具有预定电压电平的测试信号,而不受杂散电容的影响。 驱动器电路包括:用于提供具有预定电压电平的测试信号的缓冲放大器; 连接到第一电压源的第一二极管桥,用于向缓冲放大器提供第一电压电平,其中第一二极管桥具有上节点和下电平; 连接到第二电压源的第二二极管桥,用于向缓冲放大器提供第二电压电平,其中第二二极管桥具有上节点和下节点; 连接到第三电压源的第三二极管电桥,用于向缓冲放大器提供第三电压电平,其中第三二极管电桥具有上部节点和下部节点; 第四二极管桥连接在第三二极管桥的第一电压源和下部节点之间; 以及连接在第二电压源和第三二极管桥的上部节点之间的第五二极管桥。