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1. 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。

2. 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。

3. 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。

4. 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。

5. 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。

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

US5140280A Rail-to-rail output stage of an operational amplifier 失效
标题翻译：运行放大器的轨至轨输出级
公开(公告)号：US5140280A
公开(公告)日：1992-08-18
申请号：US753129
申请日：1991-08-30
申请人： Robert L. Vyne , Thomas D. Petty , Rikki Koda
发明人： Robert L. Vyne , Thomas D. Petty , Rikki Koda
IPC分类号： H03F3/30 , H03F3/45
CPC分类号： H03F3/3067 , H03F3/45121 , H03F3/4556 , H03F3/45587 , H03F2203/45571 , H03F2203/45676 , H03F2203/45732
摘要： An input stage of an operational amplifier uses current sources to allow first and second differential input transistor pairs to operate near the power supply rails. The output stage of the operational amplifier also operates within a saturation potential of the power supply rails. The first differential input transistor pair operates when the input signal is less than a predetermined threshold, while the second differential input transistor pair operates when the input signal is greater than the predetermined threshold. A detection circuit at the input terminals prevents phase inversion of the output signal should the inputs be driven beyond the power supply rails. A current cancellation circuit removes current variation induced by voltage changes at the output of the input stage and provides high gain and low input offset voltage.
摘要翻译：运算放大器的输入级使用电流源来允许第一和第二差分输入晶体管对在电源轨附近操作。运算放大器的输出级也在电源轨的饱和电位内工作。当输入信号小于预定阈值时，第一差分输入晶体管对工作，而当输入信号大于预定阈值时第二差分输入晶体管对工作。如果输入被驱动超过电源轨，则输入端子处的检测电路防止输出信号的相位反转。电流消除电路消除由输入级输出端的电压变化引起的电流变化，并提供高增益和低输入失调电压。

8. 发明授权

US5057709A Current threshold detector circuit 失效
标题翻译：电流阈值检测电路
公开(公告)号：US5057709A
公开(公告)日：1991-10-15
申请号：US607961
申请日：1990-11-01
申请人： Thomas D. Petty , Robert L. Vyne
发明人： Thomas D. Petty , Robert L. Vyne
IPC分类号： H03K17/30 , H03K5/1534
CPC分类号： H03K5/1534
摘要： A dectector circuit responsive to a current suppled to an input thereof provides an output signal when the magnitude of the current exceeds a predetermined threshold level includes a multi-collector transistor having a first one of its collectors connected to the base thereof and an emitter coupled to the input. A diode formed by a diode-connected transistor is coupled to the first collector of the multi-collector transistor. A second transistor is provided having its collector coupled to the second collector of the multi-collector transistor, a base coupled to the first collector and an emitter which is coupled to a pair of series connected resistors. The second transistor is operated at a lower current density than the diode-connected transistor such that the former operates in a saturated condition until such time that the input current exceeds the threshold level to produce the output signal.
摘要翻译：响应于提供给其输入的电流的检测电路在电流的大小超过预定阈值电平时提供输出信号，包括其集电极中的第一个连接到其基极的多集电极晶体管，发射极耦合到输入。由二极管连接的晶体管形成的二极管耦合到多集电极晶体管的第一集电极。提供第二晶体管，其集电极耦合到多集电极晶体管的第二集电极，耦合到第一集电极的基极和耦合到一对串联电阻器的发射极。第二晶体管以比二极管连接的晶体管更低的电流密度工作，使得前者工作在饱和状态，直到输入电流超过阈值电平以产生输出信号。

9. 发明授权

US5699015A Low voltage operational amplifier and method 失效
标题翻译：低压运算放大器及方法
公开(公告)号：US5699015A
公开(公告)日：1997-12-16
申请号：US618544
申请日：1996-03-19
申请人： Robert N. Dotson , Richard S. Griffith , Thomas D. Petty , Robert L. Vyne
发明人： Robert N. Dotson , Richard S. Griffith , Thomas D. Petty , Robert L. Vyne
IPC分类号： H03F3/45 , H03F3/20 , H03F3/30 , H03F3/16 , H03F3/26
CPC分类号： H03F3/3001
摘要： Low voltage operational amplifier (10) operates in a voltage range of one to eight volts over a temperature range of 0.degree. to 70.degree. centigrade. Op amp input stage (12) uses N-channel depletion-mode MOSFETs to provide amplification of the differential input and maintain constant transconductance. Source follower MOSFET (13) provides unity gain in transferring the AC signal, STAGE-1 OUTPUT, to the base of current sinking transistor (18). Sink control circuit (14) and source control circuit (22) generate the base drive currents for transistors (18) and (24). The signal at the output of MOSFET (13) either causes the sink transistor (18) to sink current or the signal to be transposed by means of a translinear loop (16) and causes the source transistor (24) to source current.
摘要翻译：低压运算放大器（10）在0至70℃的温度范围内工作在1-8伏特的电压范围内。运算放大器输入级（12）使用N沟道耗尽型MOSFET来提供差分输入的放大并保持恒定的跨导。源极跟随器MOSFET（13）在将AC信号STAGE-1 OUTPUT传送到电流吸收晶体管（18）的基极时提供单位增益。漏极控制电路（14）和源极控制电路（22）产生用于晶体管（18）和（24）的基极驱动电流。 MOSFET（13）的输出处的信号或者使得宿晶体管（18）通过一个跨线性环路（16）吸收电流或被转置的信号，并且使源极晶体管（24）发射电流。

10. 发明授权

US5311147A High impedance output driver stage and method therefor 失效
标题翻译：高阻抗输出驱动级及其方法
公开(公告)号：US5311147A
公开(公告)日：1994-05-10
申请号：US966486
申请日：1992-10-26
申请人： Thomas D. Petty , Robert L. Vyne
发明人： Thomas D. Petty , Robert L. Vyne
IPC分类号： H03F1/56 , H03F3/343 , H03F1/34
CPC分类号： H03F1/56
摘要： A high impedance output driver stage (16) for reducing loading on a gain stage (18) which drives an output stage (19). The output stage (19) is responsive to an input current. A current sense circuit (21) senses current of output stage (19). The current sense circuit (21) outputs a current proportional to the current sensed in the output stage (19). A current source circuit (22) is responsive to the current output by the current sense circuit (21) and outputs a current substantially equal to the input current of the output stage (19) thereby reducing loading on the gain stage (18).
摘要翻译：一种用于减小驱动输出级（19）的增益级（18）上的负载的高阻抗输出驱动级（16）。输出级（19）响应输入电流。电流检测电路（21）感测输出级（19）的电流。电流检测电路（21）输出与在输出级（19）中检测到的电流成比例的电流。电流源电路（22）响应于电流检测电路（21）的电流输出，并且输出基本上等于输出级（19）的输入电流的电流，从而减小增益级（18）上的负载。

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