SINGLE TRANSISTOR MULTIPLIER AND METHOD THEREFOR

    公开(公告)号:US20210326539A1

    公开(公告)日:2021-10-21

    申请号:US17362376

    申请日:2021-06-29

    IPC分类号: G06G7/164 H03F3/45 G06N3/02

    摘要: A multiplier has a MOSFET in a common source configuration. A MOSFET current source is coupled to a drain terminal of the MOSFET, An inverter has an input coupled to the drain terminal of the MOSFET. An output of the inverter gates two currents whose current magnitudes are proportional. A first capacitor has a first terminal coupled to a first of the two currents and a gate of the MOSFET and a second terminal grounded. A second capacitor has a first terminal coupled to a second of the two currents and a second terminal coupled to the first of the two currents. The multiplier is first reset by discharging a gate capacitance of the MOSFET and then allowing it to be recharged to a Vt comparator threshold after which a charge is removed from the gate terminal of the MOSFET reducing a voltage on the gate terminal below the Vt comparator threshold, causing the two currents to be enabled until the Vt comparator threshold reaches a previous Vt comparator threshold and the inverter turns off the two currents. In a next reset phase, the second capacitor holds a multiplied value of charge.

    Low cost squib driver for airbag application
    2.
    发明申请
    Low cost squib driver for airbag application 有权
    用于安全气囊应用的低成本爆管驾驶员

    公开(公告)号:US20050225925A1

    公开(公告)日:2005-10-13

    申请号:US10830157

    申请日:2004-04-22

    申请人: Andreas Sibrai

    发明人: Andreas Sibrai

    IPC分类号: B60R21/01 F23Q5/00

    CPC分类号: B60R21/0173

    摘要: A circuit and a method are given, to realize a very efficient driver device for igniters or squibs as used e.g. in airbag applications. Special attention has been turned to include secure and always reliable operating features into the device and at the same time to reach for a low-cost implementation with modern integrated circuit technologies. Controlled firing operation and sophisticated diagnostic mechanisms are realized. These design features have been acquired by use of current mirror circuit principles for the switching devices where appropriate and with special regard to production cost. Current trimming and limitation to secure values are part of the solution.

    摘要翻译: 给出了一种电路和方法,以实现用于例如点火器或点火器的非常有效的驱动装置。 在安全气囊的应用。 已经特别注意将安全且始终可靠的操作特性纳入设备,同时通过现代集成电路技术实现低成本实现。 实现了控制点火操作和复杂的诊断机制。 这些设计特征已​​经通过在适当的情况下使用电流镜电路原理来获得,并且特别关注生产成本。 解决方案的一部分是当前的修剪和限制以确保值。

    Single transistor multiplier and method therefor

    公开(公告)号:US11087099B2

    公开(公告)日:2021-08-10

    申请号:US16291311

    申请日:2019-03-04

    IPC分类号: G06G7/164 H03F3/45 G06N3/02

    摘要: A multiplier has a MOSFET in a common source configuration. A MOSFET current source is coupled to a drain terminal of the MOSFET. An inverter has an input coupled to the drain terminal of the MOSFET. An output of the inverter gates two currents whose current magnitudes are proportional. A first capacitor has a first terminal coupled to a first of the two currents and a gate of the MOSFET and a second terminal grounded. A second capacitor has a first terminal coupled to a second of the two currents and a second terminal coupled to the first of the two currents. The multiplier is first reset by discharging a gate capacitance of the MOSFET and then allowing it to be recharged to a Vt comparator threshold after which a charge is removed from the gate terminal of the MOSFET reducing a voltage on the gate terminal below the Vt comparator threshold, causing the two currents to be enabled until the Vt comparator threshold reaches a previous Vt comparator threshold and the inverter turns off the two currents. In a next reset phase, the second capacitor holds a multiplied value of charge.

    CHARGE DOMAIN MATHEMATICAL ENGINE AND METHOD

    公开(公告)号:US20190286977A1

    公开(公告)日:2019-09-19

    申请号:US16291864

    申请日:2019-03-04

    摘要: A multiplier has a pair of charge reservoirs. The pair of charge reservoirs are connected in series. A first charge movement device induces charge movement to or from the pair of charge reservoirs at a same rate. A second charge movement device induces charge movement to or from one of the pair of reservoirs, the rate of charge movement programmed to one of add or remove charges at a rate proportional to the first charge movement device. The first charge movement device loads a first charge into a first of the pair of charge reservoirs during a first cycle. The first charge movement device and the second charge movement device remove charges at a proportional rate from the pair of charge reservoirs during a second cycle until the first of the pair of charge reservoirs is depleted of the first charge. The second charge reservoir thereafter holding the multiplied result.

    Enhanced architectures of voltage-controlled oscillators with single inductor (VCO-1L)
    6.
    发明授权
    Enhanced architectures of voltage-controlled oscillators with single inductor (VCO-1L) 有权
    具有单电感(VCO-1L)的压控振荡器的增强架构

    公开(公告)号:US07061339B2

    公开(公告)日:2006-06-13

    申请号:US11007378

    申请日:2004-12-08

    IPC分类号: H03B5/04

    CPC分类号: H03B5/1215 H03B5/1228

    摘要: Methods to achieve low power consumption, high output amplitude and an improved high frequency stability, and high speed for voltage-controlled oscillators are disclosed These methods includes to provide a current mirror, a power supply voltage Vdd, two single-ended outputs, a lower layer of gain providing structure comprising cross-coupled transistors, an upper layer of gain providing structure, a control voltage, a pair of capacitors to block a DC-connection to the gates of said cross-coupled transistors, a pair of resistors, and an LC-tank. Important steps of these methods include to set the time instances when said transistors of lower layer of gain providing structure open and close, to shut-down the transistors of lower layer of gain providing structure as soon as the energy required to keep the oscillations in said LC-tank is secured, to add additional gain in the amplification loop; and to pump-out charges of the channels of said transistors of said lower layer gain providing structure.

    摘要翻译: 公开了实现低功耗,高输出振幅和改善的高频稳定性以及用于压控振荡器的高速度的方法。这些方法包括提供电流镜,电源电压Vdd,两个单端输出,低电平 增益提供结构层,包括交叉耦合晶体管,增益提供结构的上层,控制电压,一对电容器,以阻断与所述交叉耦合晶体管的栅极的直流连接,一对电阻器和 LC-tank。 这些方法的重要步骤包括设置当增益提供结构的下层的晶体管开放和闭合时的时间实例,以便一旦将所述振荡保持在所述的所述能量所需的能量关闭所述增益提供结构的下层的晶体管 LC-tank是固定的,以增加放大回路的增益; 并且抽出所述下层增益提供结构的所述晶体管的通道的电荷。

    High isolation/high speed buffer amplifier
    7.
    发明授权
    High isolation/high speed buffer amplifier 有权
    高隔离/高速缓冲放大器

    公开(公告)号:US06982601B2

    公开(公告)日:2006-01-03

    申请号:US10969519

    申请日:2004-10-20

    申请人: Andreas Sibrai

    发明人: Andreas Sibrai

    IPC分类号: H03F3/04

    摘要: A method and circuits of a high isolation and high-speed buffer amplifier capable to handle frequencies in the GHz range have been achieved. The output to input isolation is primary dependent on the gate-source capacitance of the active buffer transistor. Having two or more in series and by reducing the impedance between them a high isolation can be achieved. The input signals are split in several signal paths and are amplified in the push-pull mode using source follower amplifiers. Then the amplified signals are being combined again. The amplified output current is mirrored applying a multiplication factor. Said method and technology can be used for buffer amplifiers having differential input and differential output or having single input and single output or having differential input and single output. A high reversed biased (output to input) isolation and a reduced quiescent current have been achieved.

    摘要翻译: 已经实现了能够处理GHz范围内的频率的高隔离和高速缓冲放大器的方法和电路。 输入到输入隔离主要取决于有源缓冲晶体管的栅源电容。 具有两个或更多个串联并且通过减小它们之间的阻抗可以实现高隔离度。 输入信号被分成几个信号路径,并使用源跟踪放大器在推挽模式下被放大。 然后放大的信号被再次组合。 放大的输出电流被镜像应用乘法因子。 所述方法和技术可用于具有差分输入和差分输出或具有单输入和单输出或具有差分输入和单输出的缓冲放大器。 已经实现了高反向偏置(输出到输入)隔离和降低的静态电流。

    EVENT DRIVEN MATHEMATICAL ENGINE AND METHOD
    10.
    发明申请

    公开(公告)号:US20190332929A1

    公开(公告)日:2019-10-31

    申请号:US16396570

    申请日:2019-04-26

    IPC分类号: G06N3/063 G06N3/04 H01L27/146

    摘要: An event driven device has a network collecting data. A device is coupled to the network for determining changes in the data collected, wherein the device signals the network to process the data collected when the device determines desired changes in the data collected. In a second embodiment a level shift adjusts the band diagram of a spill and fill circuit to allow processing only if a change in input value occurs. This is extended to teach a means by which the subset of an image or incoming audio data might be used to trigger an event. It could also be used for always on operation at lower power than alternative solutions.