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
    • 1. 发明授权
    • Low voltage self cascode current mirror
    • 低电压自共扼电流电流镜
    • US5966005A
    • 1999-10-12
    • US993030
    • 1997-12-18
    • Ichiro Fujimori
    • Ichiro Fujimori
    • G05F3/26H03F3/345H03F3/45G05F3/16
    • H03F3/45179G05F3/262H03F3/345H03F3/45076H03F2203/30151H03F2203/45028
    • An integrated circuit is provided for sourcing a mirrored current into a high impedance output node. A load may be coupled to the output node, and the mirrored current may be derived proportional to or substantially equal to current forwarded from a reference current source. The integrated circuit, or current mirror, includes a pair of series-connected output transistors coupled between the output node and a reference terminal. One of the output transistors is dimensioned with a channel that is short enough to ensure the threshold voltage of that transistor is smaller than the threshold voltage of the other transistor having a longer channel. Thus, one transistor utilizes the benefits of high density integrated circuit manufacture and, more specifically, short channel effects arising from channel length less than, e.g., 1.0 microns. The difference in threshold voltages between the pair of output transistors, and mutually connecting gates of those transistors helps maximize the output impedance and voltage swing from the output node of the current mirror while minimizing voltage needed to operate the current mirror.
    • 提供集成电路用于将镜像电流提供给高阻抗输出节点。 负载可以耦合到输出节点,并且镜像电流可以被导出成与或者基本上等于从参考电流源转发的电流。 集成电路或电流镜包括耦合在输出节点和参考端之间的一对串联连接的输出晶体管。 其中一个输出晶体管的尺寸确定为足够短的通道,以确保该晶体管的阈值电压小于具有较长通道的另一个晶体管的阈值电压。 因此,一个晶体管利用高密度集成电路制造的优点,更具体地说,是由小于例如1.0微米的沟道长度引起的短沟道效应。 一对输出晶体管之间的阈值电压和这些晶体管的相互连接的栅极之间的差异有助于使电流镜的输出节点的输出阻抗和电压摆幅最大化,同时最小化操作电流镜所需的电压。
    • 3. 发明授权
    • Slew rate boost circuitry and method
    • 压摆率升压电路和方法
    • US06437645B1
    • 2002-08-20
    • US09784724
    • 2001-02-15
    • Vadim V. IvanovDavid R. Baum
    • Vadim V. IvanovDavid R. Baum
    • H03F345
    • H03F3/45372H03F3/3028H03F3/45192H03F3/45269H03F3/45273H03F3/45291H03F3/45367H03F2200/331H03F2203/30084H03F2203/30096H03F2203/30117H03F2203/30129H03F2203/30151H03F2203/30156H03K17/04106
    • A differential input circuit (1) includes circuitry for generating slew boost currents to be supplied to an output stage of an operational amplifier. The differential input circuit (1) includes a differential current steering circuit including a first transistor (M2) having a gate coupled to receive a first input signal (Vin−), a second transistor (M3) having a gate coupled to receive a second input signal (Vin+), and a constant current source (20) coupled to sources of the first and second transistors, and providing first (4 or 6) and second (5 or 7) outputs of the differential input circuit coupled to the first (M2) and second (M3), respectively. A first slew current circuit is operated in response to the first input signal (Vin−) to produce a first slew boost current which is introduced into a current summing conductor (9) coupled to the sources of the first (M2) and second (M3) transistors and the constant current source (20). A second slew current circuit is operated in response to the second input signal (Vin+) to produce a second slew boost current which is introduced into the current summing conductor (9), wherein the first and second slew boost currents boosting currents flow through the second (M3) and first (M2) transistors, respectively.
    • 差分输入电路(1)包括用于产生要提供给运算放大器的输出级的转换升压电流的电路。 差分输入电路(1)包括差动电流控制电路,其包括具有耦合以接收第一输入信号(Vin-)的栅极的第一晶体管(M2),第二晶体管(M3),其栅极耦合以接收第二输入 信号(Vin +)和耦合到第一和第二晶体管的源极的恒流源(20),以及提供耦合到第一(M2)的差分输入电路的第一(4或6)和第二(5或7) )和第二(M3)。 响应于第一输入信号(Vin-)操作第一回转电流电路以产生第一压摆升压电流,其被引入耦合到第一(M2)和第二(M2)的源极的电流求和导体(9) )晶体管和恒流源(20)。 响应于第二输入信号(Vin +)操作第二回转电流电路以产生被引入到电流求和导体(9)中的第二压摆升压电流,其中第一和第二压摆升压电流升压电流流过第二 (M3)和第一(M2)晶体管。
    • 6. 发明申请
    • SLEW RATE BOOST CIRCUITRY AND METHOD
    • SLEW RATE升压电路和方法
    • US20020109547A1
    • 2002-08-15
    • US09784724
    • 2001-02-15
    • TEXAS INSTRUMENTS INCORPORATED
    • Vadim V. IvanovDavid R. Baum
    • H03F003/45
    • H03F3/45372H03F3/3028H03F3/45192H03F3/45269H03F3/45273H03F3/45291H03F3/45367H03F2200/331H03F2203/30084H03F2203/30096H03F2203/30117H03F2203/30129H03F2203/30151H03F2203/30156H03K17/04106
    • A differential input circuit (1) includes circuitry for generating slew boost currents to be supplied to an output stage of an operational amplifier. The differential input circuit (1) includes a differential current steering circuit including a first transistor (M2) having a gate coupled to receive a first input signal (Vinnull), a second transistor (M3) having a gate coupled to receive a second input signal (Vinnull), and a constant current source (20) coupled to sources of the first and second transistors, and providing first (4 or 6) and second (5 or 7) outputs of the differential input circuit coupled to the first (M2) and second (M3), respectively. A first slew current circuit is operated in response to the first input signal (Vinnull) to produce a first slew boost current which is introduced into a current summing conductor (9) coupled to the sources of the first (M2) and second (M3) transistors and the constant current source (20). A second slew current circuit is operated in response to the second input signal (Vinnull) to produce a second slew boost current which is introduced into the current summing conductor (9), wherein the first and second slew boost currents boosting currents flow through the second (M3) and first (M2) transistors, respectively.
    • 差分输入电路(1)包括用于产生要提供给运算放大器的输出级的转换升压电流的电路。 差分输入电路(1)包括差动电流控制电路,其包括具有耦合以接收第一输入信号(Vin-)的栅极的第一晶体管(M2),第二晶体管(M3),其栅极耦合以接收第二输入 信号(Vin +)和耦合到第一和第二晶体管的源极的恒流源(20),以及提供耦合到第一(M2)的差分输入电路的第一(4或6)和第二(5或7) )和第二(M3)。 响应于第一输入信号(Vin-)操作第一回转电流电路以产生第一压摆升压电流,其被引入耦合到第一(M2)和第二(M2)的源极的电流求和导体(9) )晶体管和恒流源(20)。 响应于第二输入信号(Vin +)操作第二回转电流电路以产生被引入到电流求和导体(9)中的第二压摆升压电流,其中第一和第二压摆升压电流升压电流流过第二 (M3)和第一(M2)晶体管。
    • 8. 发明申请
    • INTEGRATED CIRCUIT, CURRENT MIRROR CIRCUIT, AND METHOD OF FABRICATING CURRENT MIRROR CIRCUIT
    • 集成电路,电流反射电路以及制作电流反射电路的方法
    • WO99031797A1
    • 1999-06-24
    • PCT/JP1998/005658
    • 1998-12-15
    • G05F3/26H03F3/345H03F3/45
    • H03F3/45179G05F3/262H03F3/345H03F3/45076H03F2203/30151H03F2203/45028
    • In a integrated circuit, a mirrored current is fed to a high-impedance output node. A load is connected to the output node, and a returned current is proportional to or equal to the current supplied from a reference current source. The integrated circuit or current mirror circuit is provided with a pair of output transistors connected in series between the output node and a reference terminal. The channel of one of the output transistors is short so that the threshold voltage may be lower than that of the other transistor having a long channel. Thus, the transistors are the outcome of the high-density integrated-circuit fabrication method, and more specifically, a short-channel effect produced by a channel length of 1 mu m or less is exploited. The difference between the threshold voltages of the pair of output transistors and mutual connection between the gates of the transistors lead to minimization of the operating voltage of a current mirror circuit and maximization of the output impedance and the output swing from the output terminal of the current mirror circuit.
    • 在集成电路中,将镜像电流馈送到高阻抗输出节点。 负载连接到输出节点,返回的电流与从参考电流源提供的电流成比例。 集成电路或电流镜电路具有串联连接在输出节点和参考端之间的一对输出晶体管。 输出晶体管之一的沟道较短,使得阈值电压可能低于具有长沟道的另一个晶体管的阈值电压。 因此,晶体管是高密度集成电路制造方法的结果,更具体地说,利用由1微米或更小的沟道长度产生的短沟道效应。 一对输出晶体管的阈值电压之间的差异和晶体管的栅极之间的相互连接导致电流镜电路的工作电压的最小化,以及从电流的输出端子输出阻抗和输出摆幅的最大化 镜电路。