会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 42. 发明申请
    • Amplifier
    • 放大器
    • US20050104656A1
    • 2005-05-19
    • US10929524
    • 2004-08-31
    • Haruo Kojima
    • Haruo Kojima
    • H03K5/02H03F1/32H03F3/21H03F3/72H03G3/20
    • H03F3/72H03F2200/405H03F2203/7227
    • An amplifier includes a plurality of power amplifier elements connected in cascaded multiple stages, a first bias power supply, a second bias power supply, a switching circuit configured to switch a first output supplied from the first bias power supply in response to a modulation pulse so as to transmit the first output to the plurality of power amplifier elements, a pulse differentiating circuit configured to differentiate the modulation pulse by a given time constant, and an adder circuit configured to add the differentiated modulation pulse and a second output of the second bias power supply so as to transmit the differentiated modulation pulse added to the second output as an input bias voltage to at least one of the plurality of power amplifier elements except for a final stage in the cascaded multiple stages.
    • 放大器包括以级联多级连接的多个功率放大器元件,第一偏置电源,第二偏置电源,被配置为响应于调制脉冲来切换从第一偏置电源提供的第一输出的开关电路, 为了将第一输出发送到多个功率放大器元件,配置为将调制脉冲区分给定时间常数的脉冲差分电路和被配置为将差分调制脉冲和第二偏置功率的第二输出相加的加法器电路 供给,以将除了作为级联多级的最后级之外的多个功率放大器元件中的至少一个发送作为输入偏置电压的添加到第二输出的微分调制脉冲。
    • 44. 发明授权
    • Circuit for driving capacitive load
    • 用于驱动电容性负载的电路
    • US6154069A
    • 2000-11-28
    • US978818
    • 1997-11-26
    • Heihachiro Ebihara
    • Heihachiro Ebihara
    • G09G3/36H03F3/30H03K5/02H03K19/013H03K19/018H03B1/00
    • G09G3/3696H03F3/3066H03K19/013H03K19/0136H03K19/01825H03K5/02G09G2320/0209
    • A circuit for driving a capacitive load using a booster having a low power consumption, which amplifies spike-like signals at high speeds and produces a large voltage and a large current, and wherein two transistors 104 and 111 are connected in series across a first power source H1 and a second power source L1 having a potential lower than that of the first power source. An output terminal OUT is provided at a portion where the two transistors are connected together, and the first transistor 104 connected between the first power source and the output terminal has a complementary relationship to the second transistor 11 connected between the output terminal and the second power source. The first transistor 104 is constituted by a PNP-type bipolar transistor or a P-type field-effect transistor, the second transistor 111 is constituted by an NPN-type transistor or an N-type field-effect transistor, and between an input terminal IN and a control terminal of each of the transistors are connected in parallel a capacitor and a means that applies a bias to the control terminal.
    • 一种用于使用具有低功耗的升压器来驱动电容性负载的电路,其以高速放大尖峰状信号并产生大电压和大电流,并且其中两个晶体管104和111串联连接跨第一功率 源H1和具有低于第一电源的电位的第二电源L1。 输出端子OUT设置在两个晶体管连接在一起的部分,并且连接在第一电源和输出端子之间的第一晶体管104与连接在输出端子和第二电源之间的第二晶体管11互补 资源。 第一晶体管104由PNP型双极晶体管或P型场效应晶体管构成,第二晶体管111由NPN型晶体管或N型场效应晶体管构成,在输入端 IN和每个晶体管的控制端并联连接电容器和向控制端施加偏压的装置。
    • 46. 发明授权
    • Voltage level shifting circuit
    • 电压电平移位电路
    • US6084459A
    • 2000-07-04
    • US953510
    • 1997-10-17
    • Jae-Hong Jeong
    • Jae-Hong Jeong
    • H03K19/0185H03K3/356H03K5/02H03L5/00
    • H03K3/356104
    • An improved voltage level shifting circuit which is capable of increasing a level shifting speed and reducing a current consumption and layout area by decreasing a pull-up capacity of the pull-up PMOS transistors in a side in which a voltage level is shifted to a low level and increasing a pull-up capacity through the NMOS transistors in a side in which a voltage level is shifted to a high level. The voltage level shifting circuit includes a pull-up PMOS transistor and a pull-down NMOS transistor connected in series between a voltage Vpp terminal and a voltage Vss terminal and having a common drain which acts a first voltage terminal, a pull-up PMOS transistor and a pull-down NMOS transistor connected in series between the voltage Vpp terminal and the voltage Vss terminal, configured symmetrically with respect to the pull-up PMOS transistor and pull-down NMOS transistor, and having a common drain which acts as a second voltage terminal, a first conductive type MOS transistor a source of which is connected with a gate of the pull-up PMOS transistor and the second voltage terminal, respectively and a gate of which is connected with an input terminal, and a second conductive type MOS transistor a source of which is connected with a gate of the pull-up PMOS transistor and the first voltage terminal, respectively, and a gate of which is connected with the input terminal through an inverter.
    • 一种改进的电压电平移位电路,其能够通过减小上拉PMOS晶体管在电压电平变为低电平的一侧的上拉电容而提高电平移位速度并降低电流消耗和布局面积 并且通过在其中电压电平转移到高电平的一侧中的NMOS晶体管增加上拉电容。 电压电平移位电路包括串联连接在电压Vpp端子和电压Vss端子之间的上拉PMOS晶体管和下拉式NMOS晶体管,并具有作为第一电压端子的共用漏极,上拉PMOS晶体管 以及串联连接在电压Vpp端子和电压Vss端子之间的下拉式NMOS晶体管,其相对于上拉PMOS晶体管和下拉式NMOS晶体管对称配置,并具有用作第二电压的公共漏极 端子,第一导电型MOS晶体管,其源极分别与上拉PMOS晶体管的栅极和第二电压端子连接,其栅极与输入端子连接,第二导电型MOS晶体管 其源极分别与上拉PMOS晶体管和第一电压端子的栅极连接,并且其栅极通过i连接到输入端子 nverter
    • 47. 发明授权
    • Voltage generator-booster for supplying a pulsating voltage having
approximately constant voltage levels
    • 用于提供具有近似恒定电压电平的脉动电压的电压发生器 - 升压器
    • US5914867A
    • 1999-06-22
    • US631574
    • 1996-04-12
    • Luigi Pascucci
    • Luigi Pascucci
    • H03K5/02G05F3/24G11C11/34H02M3/07H03K19/096H02M7/25
    • H02M3/07G05F3/242
    • A generator-booster includes a bootstrap capacitor coupled between an output node and a pull-up node. A bootstrap control stage is coupled to the pull-up node and receives a pump signal with two states determining a precharge step and a pull-up step of the bootstrap capacitor. A precharge limiting transistor is supplied with a precharge reference signal and is coupled to the output node and the bootstrap capacitor to prevent a bootstrap capacitor from being charged in excess of a value determined by the precharge reference signal. A limiting stage is coupled to the output node and the bootstrap capacitor to prevent a voltage of the output node from exceeding a value determined by the limiting stage. The bootstrap control stage also provides for decoupling the pull-up node from the pump signal during the pull-up step, after the limiting stage has been turned on.
    • 发生器 - 升压器包括耦合在输出节点和上拉节点之间的自举电容器。 引导控制级耦合到上拉节点并且接收具有确定自举电容器的预充电步骤和上拉步骤的两种状态的泵浦信号。 预充电限制晶体管被提供有预充电参考信号,并且耦合到输出节点和自举电容器,以防止自举电容器被充电超过由预充电参考信号确定的值。 限制级耦合到输出节点和自举电容器,以防止输出节点的电压超过由限制级确定的值。 引导控制级还提供在上拉步骤中,在限制级已经接通之后,将上拉节点与泵浦信号去耦。
    • 49. 发明授权
    • Operational amplifier circuit with an extended input voltage range
    • 具有扩展输入电压范围的运算放大器电路
    • US5751186A
    • 1998-05-12
    • US659585
    • 1996-06-06
    • Tomoaki Nakao
    • Tomoaki Nakao
    • H03K5/02H03F3/30H03F3/45H03F3/72H03K19/0948H03K17/687
    • H03F3/3055H03F3/4521H03F3/72
    • An operational amplifier circuit 21 comprises transistors N14, N15 in a first output amplifier circuit 24, and transistors P24, P25 in a second output amplifier circuit 25. When a second differential amplifier circuit 23 is cut off, the output is driven by transistor P13 and transistors N14, N15. When a first differential amplifier circuit 22 is cut off, the output is driven by transistor N23 and transistors P24, P25. Therefore, if such a voltage as to cut off one differential amplifier circuit is given from opposite phase and in-phase input terminals 31, 32, the output can be produced. In such constitution, without using depletion type transistors that require particular manufacturing process, the range of the voltage that can be entered in the input terminal can be extended.
    • 运算放大器电路21包括第一输出放大器电路24中的晶体管N14,N15,以及第二输出放大器电路25中的晶体管P24,P25。当第二差分放大器电路23截止时,输出由晶体管P13驱动, 晶体管N14,N15。 当第一差分放大器电路22截止时,输出由晶体管N23和晶体管P24,P25驱动。 因此,如果从相位相位和同相输入端子31,32给出截止一个差分放大器电路的这种电压,则可以产生输出。 在这种结构中,不需要使用需要特定制造工艺的耗尽型晶体管,可以扩展可以输入到输入端子中的电压的范围。
    • 50. 发明授权
    • Waveform shaping apparatus
    • 波形整形装置
    • US5742198A
    • 1998-04-21
    • US687915
    • 1996-07-29
    • Masakiyo HorieTakuya Harada
    • Masakiyo HorieTakuya Harada
    • G01P3/489G01D5/244G01R19/165H03K5/02H03K5/08H03K5/1252H03B1/00
    • G01D5/24476H03K5/02H03K5/088
    • An input voltage Va and a threshold voltage Vc are compared in a comparator 21 to shaping the waveform of a sensor signal. The period of the output signal of comparator 21 is measured by a period measuring circuit 4. A stepped waveform voltage generating circuit 5 generates a stepped waveform voltage based on the measured period. The stepped waveform voltage is converted into corresponding current in a V-I conversion circuit 6. The current of V-I conversion circuit 6 is supplied to a resistance 23d or 23e via an analog switch 22a or 22b which turns on or off in response to the operation of comparator 21, thereby applying a stepped offset voltage to input voltage Va threshold voltage Vc to perform the hysteresis operation.
    • 在比较器21中比较输入电压Va和阈值电压Vc,以对传感器信号的波形进行整形。 比较器21的输出信号的周期由周期测量电路4测量。阶梯波形电压产生电路5基于测量周期产生阶梯波形电压。 在VI转换电路6中将阶梯波形电压转换成相应的电流.VVI转换电路6的电流经由模拟开关22a或22b被提供给电阻23d或22b,模拟开关22a或22b响应于比较器的操作而导通或截止 从而对输入电压Va阈值电压Vc施加阶梯式偏移电压以执行滞后操作。