-
1.发明授权Bandgap voltage reference using differential pairs to perform temperature curvature compensation 有权带隙电压参考使用差分对来执行温度曲率补偿公开(公告)号：US06642699B1
公开(公告)日：2003-11-04
申请号：US10134108
申请日：2002-04-29
IPC分类号： G05F316
CPC分类号： G05F3/30 , Y10S323/907
摘要： A bandgap reference that generates a temperature stable DC voltage by using a corrective current. The corrective current is generated by a series of differential pairs that are controlled by both positive temperature shift gate voltage on one transistor, as well as a negative temperature shift gate voltage on the other transistor. As temperature changes and crosses the crossing point at which the current is split evenly through both transistors, the current change is more abrupt. The crossing points of each of the differential pairs may be appropriately selected so as to generate a high resolution corrective current. The various current contributions are summed to form the total corrective current, which tends to be quite accurate due to the abrupt crossing points. The corrective current is then fed back into the circuit so as to compensate for much of the temperature error.
摘要翻译： 通过使用校正电流产生温度稳定的直流电压的带隙基准。 校正电流由一系列差分对产生，这些差分对由一个晶体管上的正温度偏移栅极电压以及另一个晶体管上的负温度移位栅极电压控制。 随着温度的变化和电流跨越两个晶体管的交叉点，电流的变化更加突出。 可以适当地选择每个差分对的交叉点，以产生高分辨率校正电流。 各种当前贡献相加以形成总的校正电流，由于突然的交叉点倾向于相当准确。 然后将校正电流反馈回电路，以补偿大部分温度误差。
-
2.发明授权公开(公告)号：US06819163B1
公开(公告)日：2004-11-16
申请号：US10401082
申请日：2003-03-27
IPC分类号： G05F110
CPC分类号： G05F3/262
摘要： A switched capacitor voltage reference circuit that has a transconductance circuit that receives the output of the amplifier, and then outputs a current that depends on its input voltage. This may be accomplished using a charge pump that is controlled by the amplifier output. The transconductance circuit provides a reference voltage at the output terminal of the switched capacitor generation circuit. A capacitor capacitively couples the output terminal of the switched capacitor circuit to the inverting terminal of the amplifier during the generation phase. By adjusting the capacitances of the various capacitors, the level and temperature dependence of the generated reference voltage may be controlled. Also, the charge pump often allows for reference voltages that are greater than the supply voltage.
摘要翻译： 具有跨导电路的开关电容器电压参考电路，其接收放大器的输出，然后输出取决于其输入电压的电流。 这可以使用由放大器输出控制的电荷泵来实现。 跨导电路在开关电容器生成电路的输出端提供参考电压。 电容器在生成阶段将开关电容电路的输出端子电容耦合到放大器的反相端子。 通过调整各种电容器的电容，可以控制所产生的参考电压的电平和温度依赖性。 此外，电荷泵通常允许大于电源电压的参考电压。
-
公开(公告)号：US06707286B1
公开(公告)日：2004-03-16
申请号：US10373912
申请日：2003-02-24
IPC分类号： G05F316
CPC分类号： G05F3/262
摘要： An enhanced output impedance current mirror in which the operational amplifier includes a set of four MOSFETs having a common gate that is connected to a drain terminal of one of the differential pairs. Two of the MOSFETs reside in parallel in the current path of each of the MOSFETs of the differential pair. The differential pair MOSFET that has its drain terminal connected to the common gate also has a gate terminal that is connected to the common node between the two other MOSFETs in its current path.
摘要翻译： 一种增强型输出阻抗电流镜，其中运算放大器包括一组四个具有公共栅极的MOSFET，该公共栅极连接到差分对之一的漏极端子。 两个MOSFET并联在差分对的每个MOSFET的电流路径中。 其漏极端子连接到公共栅极的差分对MOSFET也具有栅极端子，其连接到其当前路径中的另外两个MOSFET之间的公共节点。
-
4.发明授权Multi stage circuits for providing a bandgap voltage reference less dependent on or independent of a resistor ratio 失效用于提供较小依赖于或独立于电阻比的带隙电压基准的多级电路公开(公告)号：US06614209B1
公开(公告)日：2003-09-02
申请号：US10135710
申请日：2002-04-29
IPC分类号： G05F316
CPC分类号： G05F3/30
摘要： A bandgap voltage reference uses multiple PTAT voltage reference circuits (also called PTAT sources) coupled in series to generate a final PTAT voltage. A current-biased base-emitter region of a bipolar transistor is coupled between the final PTAT voltage and an output terminal of the bandgap voltage reference so as to add the base-emitter voltage to the final PTAT voltage to thereby generate a stable bandgap voltage reference. By using multiple PTAT voltage reference in series, the need for a resistor ratio is reduced (or even eliminated) thereby reducing the size of the resistors that generate the resistor ratio (or eliminate the need for the resistors entirely).
摘要翻译： 带隙电压基准使用多个串联耦合的PTAT电压参考电路（也称为PTAT源）以产生最终的PTAT电压。 双极晶体管的电流偏置的基极 - 发射极区域耦合在最终PTAT电压和带隙电压基准的输出端之间，以将基极 - 发射极电压加到最终的PTAT电压，从而产生稳定的带隙电压基准 。 通过串联使用多个PTAT参考电压，减少（或甚至消除）电阻比的需要，从而减小产生电阻比的电阻器的尺寸（或完全不需要电阻）。
-
公开(公告)号：US20050076542A1
公开(公告)日：2005-04-14
申请号：US10682274
申请日：2003-10-08
申请人： Robert Gregoire , Mary Gregoire
发明人： Robert Gregoire , Mary Gregoire
CPC分类号： E01H4/02
摘要： A snow grooming apparatus is adapted for being drawn by a towing vehicle on a snow surface such as a ski slope. A chassis rides on a pair of runners and supports plural snow shearing blades which are angled for directing snow laterally with respect to the center of the apparatus. An hydraulic actuating system is adapted for vertically positioning a ski centered with respect to the runners. Thus, when this ski is extended downwardly, the chassis and the snow shearing blades are raised to accommodate the snow surface. A pair of wheels are movable to support the chassis above the surface for moving across roads.
摘要翻译： 雪地修整装置适于被诸如滑雪坡的雪面上的牵引车辆牵引。 底盘骑在一对跑步机上，并且支撑多个雪剪切刀片，其相对于装置的中心横向地指向雪角。 液压致动系统适于垂直地定位相对于跑步者居中的滑雪板。 因此，当这个滑雪板向下延伸时，底盘和雪剪刀被升高以适应雪面。 一对轮是可移动的，以支撑表面上方的机架，以便跨越道路移动。
-
-
-
-
搜索结果
5 条记录 (耗时 0.015 秒)
