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1. 发明授权

US5422600A Amplifier input stage with charge pump supplying a differential transistor pair 失效
标题翻译：具有电荷泵的放大器输入级提供差分晶体管对
公开(公告)号：US5422600A
公开(公告)日：1995-06-06
申请号：US264290
申请日：1994-06-23
申请人： Thomas D. Petty , Robert L. Vyne , Troy L. Stockstad
发明人： Thomas D. Petty , Robert L. Vyne , Troy L. Stockstad
IPC分类号： H03F3/45
CPC分类号： H03F3/45094 , H03F2203/45028 , H03F2203/45124 , H03F2203/45476 , H03F2203/45648 , H03F2203/45674
摘要： An input stage to an amplifier circuit (10) operating with a one volt power supply potential (32) receives a differential input signal. A charge pump (36) increases the one volt power supply potential to 1.8 volts for providing additional head-room for the differential input signal. A current source (44) controls a current mirror (40-42) to draw a predetermined current from the charge pump to supply the active conduction path of a differential transistor pair (12-14). An output stage (34) of the amplifier circuit operates off the one volt power supply potential. Since the charge pump drives only the differential transistor pair through the current mirror, it may be made small to fit on the same integrated circuit as the amplifier including any necessary pump capacitors.
摘要翻译：用一伏电源电位（32）工作的放大器电路（10）的输入级接收差分输入信号。电荷泵（36）将一伏特电源电位增加到1.8伏，为差分输入信号提供额外的头部空间。电流源（44）控制电流镜（40-42）从电荷泵吸取预定电流以提供差动晶体管对（12-14）的有源导通路径。放大器电路的输出级（34）操作一伏特电源电位。由于电荷泵仅驱动通过电流镜的差分晶体管对，所以可以使其小到与包括任何必需的泵电容器的放大器相同的集成电路。

2. 发明授权

US5471174A Amplifier having an output stage with bias current cancellation 失效
标题翻译：具有偏置电流消除的输出级的放大器
公开(公告)号：US5471174A
公开(公告)日：1995-11-28
申请号：US349578
申请日：1994-12-05
申请人： Thomas D. Petty , Troy L. Stockstad , Robert L. Vyne
发明人： Thomas D. Petty , Troy L. Stockstad , Robert L. Vyne
IPC分类号： H03F1/56 , H03F3/343 , H03F3/45
CPC分类号： H03F3/343 , H03F1/56
摘要： An amplifier circuit (10) receives a differential input signal and provides an amplified differential signal. A converter circuit (14) is responsive to the amplified differential signal and provides a single-ended signal. An output stage (16) is responsive to the single-ended signal for providing an output signal of the amplifier circuit. The output stage provides bias cancellation for the single-ended signal by injecting a current equal to the bias requirement of the input transistors (20, 38). The bias cancellation maintains a high input impedance and high gain and output drive for the output stage.
摘要翻译：放大器电路（10）接收差分输入信号并提供放大的差分信号。 A转换器电路（14）响应放大的差分信号并提供单端信号。输出级（16）响应于单端信号以提供放大器电路的输出信号。输出级通过注入等于输入晶体管（20,38）的偏置要求的电流来为单端信号提供偏置消除。偏置消除在输出级保持高输入阻抗和高增益和输出驱动。

3. 发明授权

US5521488A Voltage regulator and method therefor 失效
标题翻译：电压调节器及其方法
公开(公告)号：US5521488A
公开(公告)日：1996-05-28
申请号：US179633
申请日：1994-01-10
申请人： Troy L. Stockstad , Robert L. Vyne , Thomas D. Petty
发明人： Troy L. Stockstad , Robert L. Vyne , Thomas D. Petty
IPC分类号： G05F1/613 , H02M3/156
CPC分类号： H02M3/1563
摘要： A voltage regulator (11) having an input (12) for receiving an input current and an output (13) for providing a regulated voltage. The voltage regulator (11) comprising a diode (14), a capacitor (16), a first comparator (17), a second comparator (18), a logic circuit (19), and a switch circuit (21). The capacitor (16) is charged by the input current coupled through the diode (14). The first comparator (17) senses when the voltage on the capacitor (16) exceeds a first reference voltage and provides a signal to the logic circuit (19). The logic circuit (19) enables the switch circuit (21) for shunting the input current from charging the capacitor (19). The second comparator (18) senses when the voltage on the capacitor (16) falls below a second reference voltage and provides a signal to the logic circuit (19). The logic circuit (19) disables the switch circuit (21) from shunting the input current thereby charging the capacitor (19). Thus, the voltage at output (13) stays between the first and second predetermined voltages.
摘要翻译：具有用于接收输入电流的输入端（12）和用于提供调节电压的输出（13）的电压调节器（11）。电压调节器（11）包括二极管（14），电容器（16），第一比较器（17），第二比较器（18），逻辑电路（19）和开关电路（21）。电容器（16）由通过二极管（14）耦合的输入电流充电。第一比较器（17）感测电容器（16）上的电压何时超过第一参考电压并且向逻辑电路（19）提供信号。逻辑电路（19）使得开关电路（21）能够使输入电流分流以对电容器（19）充电。第二比较器（18）感测电容器（16）上的电压何时低于第二参考电压并且向逻辑电路（19）提供信号。逻辑电路（19）禁止开关电路（21）分流输入电流，从而对电容器（19）充电。因此，输出（13）处的电压保持在第一和第二预定电压之间。

4. 发明授权

US5422559A Pulsed battery charger circuit 失效
标题翻译：脉冲电池充电器电路
公开(公告)号：US5422559A
公开(公告)日：1995-06-06
申请号：US161627
申请日：1993-12-06
申请人： Jefferson W. Hall , Thomas D. Petty , Renwin J. Yee , Robert L. Vyne , Troy L. Stockstad
发明人： Jefferson W. Hall , Thomas D. Petty , Renwin J. Yee , Robert L. Vyne , Troy L. Stockstad
IPC分类号： H02J7/04 , H01M10/44 , H02J7/00 , H01M10/46
CPC分类号： H02J7/008
摘要： A pulsed battery charger circuit (11) for charging a battery (28). A control circuit (17) is responsive to a sense circuit (16) that monitors the battery voltage. The control circuit (17) pulses a first current source (25) or a second current source (20). An amplifier (14) is responsive to the first (25) and second (20) current sources for generating first and second predetermined voltages between a drive output (12) and a sense input (13). The first current source (25) is pulsed when the sense circuit (16) senses the battery voltage to be less than a first threshold voltage. The second current source (20) is pulsed when the sense circuit (16) senses the battery voltage to be greater than the first threshold voltage. Both the first (25) and second (20) current sources are disabled when the sense circuit (16) senses the battery voltage to be greater than a second threshold voltage.
摘要翻译：一种用于对电池（28）充电的脉冲电池充电器电路（11）。控制电路（17）响应监视电池电压的检测电路（16）。控制电路（17）对第一电流源（25）或第二电流源（20）进行脉冲。放大器（14）响应于第一（25）和第二（20）电流源，用于在驱动输出（12）和感测输入（13）之间产生第一和第二预定电压。当感测电路（16）感测到电池电压小于第一阈值电压时，第一电流源（25）是脉冲的。当感测电路（16）感测到电池电压大于第一阈值电压时，第二电流源（20）被脉冲。当感测电路（16）感测到电池电压大于第二阈值电压时，第一（25）和第二（20）电流源都被禁用。

5. 发明授权

US5285170A Operational amplifier with all NPN transistor output stage 失效
标题翻译：具有所有NPN晶体管输出级的运算放大器
公开(公告)号：US5285170A
公开(公告)日：1994-02-08
申请号：US983357
申请日：1992-11-30
申请人： Troy L. Stockstad , Robert L. Vyne , Thomas D. Petty
发明人： Troy L. Stockstad , Robert L. Vyne , Thomas D. Petty
IPC分类号： H03F3/30 , H03F3/45
CPC分类号： H03F3/3088
摘要： An operational amplifier achieves higher operating speed by using an all NPN transistor output drive stage. A control circuit in output drive stage receives an input signal and providing first and second control signals. The first and second control signals in turn drive first and second NPN output drive transistors arranged in a totem pole configuration between first and second power supply conductors.
摘要翻译：运算放大器通过使用全NPN晶体管输出驱动级实现更高的工作速度。输出驱动级中的控制电路接收输入信号并提供第一和第二控制信号。第一和第二控制信号又驱动以第一和第二电源导体之间的图腾柱结构排列的第一和第二NPN输出驱动晶体管。

6. 发明授权

US5448770A Temperature-coefficient controlled radio frequency signal detecting circuitry 失效
标题翻译：温度系数控制射频信号检测电路
公开(公告)号：US5448770A
公开(公告)日：1995-09-05
申请号：US42956
申请日：1993-04-05
申请人： Alexander W. Hietala , Troy L. Stockstad , Robert L. Vyne
发明人： Alexander W. Hietala , Troy L. Stockstad , Robert L. Vyne
IPC分类号： H04B1/18 , H03D1/02 , H03D1/10 , H03D1/18 , H04B1/40 , H04B1/04 , H03F3/10 , H03G3/12
CPC分类号： H03D1/02 , H03D1/10 , H03D1/18
摘要： A TC controlled RF signal detecting circuitry (211) used in the output power control circuit of a TDMA RF signal power amplifier includes positive coefficient current source (303) producing current I+ having a positive TC, negative coefficient current source (305) producing current I- having a negative TC, and current mirror (301) for summing currents I+ and I- to produce substantially identical compensated mirror currents Im1 and Im2. Anti-clamping current mirror (309) mirrors current Im2 to produce compensated currents Ia1 and Ia2, which are applied to and bias a Schottky diode coupled in series to a resistor network in each leg of diode detector (311). Each leg of diode detector (311) has a positive TC, which is substantially offset by the negative TC of compensated currents Ia1 and Ia2. Schottky diode (431) in one leg of diode detector (311) half-wave rectifies RF feedback signal (212) to produce temperature and voltage compensated power level signal (229), which has a DC level proportional to the output power level of RF output signal (214). By using TC controlled RF signal detecting circuitry (211), power level signal (229) has a DC level which is stable to within 5 mV over temperature ranging from -55.degree. C. to +125.degree. C. and over power supply voltage ranging from 2.7 V to 4.75 V.
摘要翻译：在TDMA RF信号功率放大器的输出功率控制电路中使用的TC控制的RF信号检测电路（211）包括产生具有正的TC的电流I +的正系数电流源（303），负的系数电流源（305）产生电流I - 具有负的TC和电流镜（301），用于对电流I +和I求和，以产生基本上相同的补偿后的反射镜电流Im1和Im2。抗钳位电流镜（309）反射电流Im2以产生补偿电流Ia1和Ia2，其施加到二极管检测器（311）的每个支路中并联耦合到电阻器网络的肖特基二极管并将其偏置。二极管检测器（311）的每条支路具有正的TC，其基本上被补偿电流Ia1和Ia2的负TC偏移。二极管检测器（311）的一条支路中的肖特基二极管（431）对RF反馈信号（212）半波整流，以产生温度和电压补偿功率电平信号（229），其具有与RF的输出功率电平成比例的DC电平输出信号（214）。通过使用TC控制的RF信号检测电路（211），功率电平信号（229）具有在-55℃至+125℃的温度范围内稳定在5mV内的DC电平，以及超过电源电压范围从2.7 V到4.75 V.

7. 发明授权

US5675268A Overcurrent detection circuit for a power MOSFET and method therefor 失效
标题翻译：功率MOSFET过电流检测电路及其方法
公开(公告)号：US5675268A
公开(公告)日：1997-10-07
申请号：US538522
申请日：1995-10-03
申请人： Thomas D. Petty , Troy L. Stockstad , Warren J. Schultz
发明人： Thomas D. Petty , Troy L. Stockstad , Warren J. Schultz
IPC分类号： H03K17/082 , H03K5/153 , H03K5/22
CPC分类号： H03K17/0822
摘要： An overcurrent detector circuit (21) for a power MOSFET (22) is described. The overcurrent detector circuit (21) generates a bias voltage corresponding to the drain to source voltage of the power MOSFET (22). The drain to source voltage correlates directly to the current being conducted by the power MOSFET (22). An overcurrent condition occurs when the power MOSFET (22) exceeds a predetermined current. The bias voltage is applied to a transistor (24) for generating a current. A current source (29) couples to the transistor (24). The current provided by the transistor equals the reference current of the current source (29) when the power MOSFET conducts the predetermined current. The overcurrent detector circuit (21) generates a signal indicating a overcurrent condition does not exist when the reference current is greater the current provided by the transistor. Conversely, the overcurrent detector circuit (21) generates a signal indicating the overcurrent condition when the current provided by the transistor exceeds the reference current.
摘要翻译：描述了用于功率MOSFET（22）的过电流检测器电路（21）。过电流检测器电路（21）产生对应于功率MOSFET（22）的漏极 - 源极电压的偏置电压。漏极到源极电压直接与由功率MOSFET（22）传导的电流相关。当功率MOSFET（22）超过预定电流时，发生过电流状况。偏置电压被施加到用于产生电流的晶体管（24）。电流源（29）耦合到晶体管（24）。当功率MOSFET导通预定电流时，由晶体管提供的电流等于电流源（29）的参考电流。过电流检测器电路（21）产生指示当晶体管提供的电流的参考电流大时，过电流状态不存在的信号。相反，当由晶体管提供的电流超过参考电流时，过电流检测器电路（21）产生指示过电流状况的信号。

8. 发明授权

US5610495A Circuit and method of monitoring battery cells 失效
标题翻译：监测电池的电路及方法
公开(公告)号：US5610495A
公开(公告)日：1997-03-11
申请号：US262305
申请日：1994-06-20
申请人： Renwin J. Yee , Troy L. Stockstad , Thomas D. Petty
发明人： Renwin J. Yee , Troy L. Stockstad , Thomas D. Petty
IPC分类号： H01M10/48 , H02J7/00 , H01M10/44 , H01M10/46
CPC分类号： H02J7/0019 , H01M10/48 , Y10S320/13
摘要： A battery monitoring circuit (10) sequentially samples individual voltages across a string of serially coupled battery cells (12-18). A control circuit (32) controls first and second multiplexers (34,42) to sample each battery voltage for an over-voltage condition. A comparator (52) detects an over-voltage condition by comparing a divided down battery voltage against a reference. The conduction path through the battery cells is disabled upon detecting a fault condition by a transistor (26) in the battery cell conduction path. The battery cells are further sequentially sampled for an under-voltage fault. The comparator detects an under-voltage condition by comparing a second divided down battery voltage against the reference. The conduction path through the battery cells is disabled upon detecting a fault condition by a transistor (24) in the battery cell conduction path.
摘要翻译：电池监视电路（10）顺序地对串联的串联电池单元（12-18）的各个电压进行采样。控制电路（32）控制第一和第二多路复用器（34,42）以对每个电池电压进行采样以用于过电压状态。比较器（52）通过将分压的电池电压与参考值进行比较来检测过电压状态。在通过电池单元传导路径中的晶体管（26）检测到故障状态时，通过电池单元的传导路径被禁用。对于欠压故障，电池单元进一步顺序采样。比较器通过比较第二分压电池电压与参考值来检测欠电压状况。在通过电池单元传导路径中的晶体管（24）检测到故障状态时，通过电池单元的传导路径被禁止。

9. 发明授权

US5327100A Negative slew rate enhancement circuit for an operational amplifier 失效
标题翻译：用于运算放大器的负压摆率增强电路
公开(公告)号：US5327100A
公开(公告)日：1994-07-05
申请号：US24142
申请日：1993-03-01
申请人： Troy L. Stockstad , Renwin J. Yee , Thomas D. Petty
发明人： Troy L. Stockstad , Renwin J. Yee , Thomas D. Petty
IPC分类号： H03F3/30 , H03F3/45
CPC分类号： H03F3/3071 , H03F3/45094 , H03F2203/45022 , H03F2203/45028 , H03F2203/45178 , H03F2203/45188 , H03F2203/45258 , H03F2203/45374 , H03F2203/45496 , H03F2203/45674 , H03F2203/45696
摘要： An operational amplifier enhances its negative slew rate by providing more base current to a bottom PNP output drive transistor. A large signal applied at the inverting input of the operational amplifier unbalances the differential input stage and provides maximum current through a current mirror circuit to the base of the PNP output transistor. A transistor is biased on by sufficient current flow through the current mirror circuit to draw even more base current from the base of the PNP output transistor and thereby enhance its negative slew rate.
摘要翻译：运算放大器通过向底部PNP输出驱动晶体管提供更多的基极电流来增强其负压摆率。施加在运算放大器的反相输入端的大信号不平衡差分输入级，并通过电流镜电路提供最大电流至PNP输出晶体管的基极。晶体管被充分的电流流过电流镜电路而被偏置，以从PNP输出晶体管的基极吸取更多的基极电流，从而增强其负的压摆率。

10. 发明授权

US06870422B2 Low voltage rail-to-rail CMOS input stage 有权
标题翻译：低电压轨至轨CMOS输入级
公开(公告)号：US06870422B2
公开(公告)日：2005-03-22
申请号：US10013581
申请日：2001-12-10
申请人： Troy L. Stockstad
发明人： Troy L. Stockstad
IPC分类号： H03K19/0175 , H03F3/45
CPC分类号： H03F3/45192 , H03F2203/45342 , H03F2203/45612
摘要： The present invention discloses a low voltage rail-to-rail CMOS input stage. The input stage includes a differential pail of P-channel metal oxide semiconductor field effect (PMOS) transistors, which produces differential output current signal. The input stage further includes a pair of N-channel depletion-mode metal oxide semiconductor field effect (NMOS) transistors, coupled to the bulk terminals of the differential pair of PMOS transistors, for receiving an input signal. The depletion-mode NMOS transistors further act as source follower devices to drive the bulk terminals of the differential pair of PMOS transistors.
摘要翻译：本发明公开了一种低电压轨至轨CMOS输入级。输入级包括产生差分输出电流信号的P沟道金属氧化物半导体场效应（PMOS）晶体管的差分桶。输入级还包括耦合到PMOS晶体管的差分对的体电极的一对N沟道耗尽型金属氧化物半导体场效应（NMOS）晶体管，用于接收输入信号。耗尽型NMOS晶体管还用作源极跟随器件来驱动差分PMOS晶体管的体端子。

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