公开(公告)号：US5440273A

公开(公告)日：1995-08-08

申请号：US252677

申请日：1994-06-02

申请人： Alex Gusinov ,  Moshe Gerstenhaber

发明人： Alex Gusinov ,  Moshe Gerstenhaber

IPC分类号： H03F3/30

CPC分类号： H03F3/3067

摘要： A gain stage for use in an amplifier which provides a rail-to-rail output signal. The gain stage includes a first transistor having a base, an emitter and a collector, the base being coupled to an input signal applied to the gain stage and the emitter being coupled to a first source of operating potential; a second transistor having a base, an emitter and a collector, the collector being coupled to the collector of the first transistor for providing the output signal, the emitter being coupled to a second source of operating potential; and a third transistor having a base, an emitter and a collector, the emitter being coupled to the input signal, the base being coupled to a bias voltage, and the collector being coupled to the second operating potential and the base of the second transistor for providing a drive signal thereto allowing the output signal to swing substantially between the first and second sources of operating potential.

摘要翻译： 用于放大器的增益级，其提供轨到轨输出信号。 所述增益级包括具有基极，发射极和集电极的第一晶体管，所述基极耦合到施加到所述增益级的输入信号，所述发射极耦合到第一工作电位; 具有基极，发射极和集电极的第二晶体管，所述集电极耦合到所述第一晶体管的集电极以提供所述输出信号，所述发射极耦合到第二工作电位源; 以及具有基极，发射极和集电极的第三晶体管，所述发射极耦合到所述输入信号，所述基极耦合到偏置电压，并且所述集电极耦合到所述第二工作电位和所述第二晶体管的基极， 提供驱动信号，使得输出信号基本上在第一和第二操作电源之间摆动。

公开(公告)号：US07368957B2

公开(公告)日：2008-05-06

申请号：US11490573

申请日：2006-07-21

申请人： John P. Clarkin ,  Alex Gusinov ,  Claudio Tuozzolo ,  Patrizio Vinciarelli

发明人： John P. Clarkin ,  Alex Gusinov ,  Claudio Tuozzolo ,  Patrizio Vinciarelli

IPC分类号： H03B1/00

CPC分类号： H02M1/08 ,  H03K17/133 ,  H03K17/6871 ,  H03K17/691

摘要： High-performance low-power isolated bootstrapped gate drive apparatus and methods are disclosed for driving high-side and floating transistors. The gate drivers use edge-triggered capacitive-coupled inputs. The gate drivers may include detection and delay circuitry to facilitate zero-voltage-switching of the high side or floating transistor and providing more robust rejection of false triggering. A capacitively coupled differential input edge triggered gate driver provides exceptional immunity to false triggering. The gate drivers may be used in transformer coupled drive circuits using transformers that need only support coupled pulses wide enough to be recognized as an edge by the input circuit.

摘要翻译： 公开了用于驱动高侧和浮动晶体管的高性能低功率隔离自举栅极驱动装置和方法。 栅极驱动器使用边沿触发电容耦合输入。 栅极驱动器可以包括检测和延迟电路，以促进高边或浮置晶体管的零电压切换，并提供更强大的假触发抑制。 电容耦合的差分输入边沿触发栅极驱动器为假触发提供了特殊的抗扰性。 使用变压器的变压器耦合驱动电路中可以使用栅极驱动器，该变压器仅需要支持足够大的耦合脉冲，以便由输入电路识别为边沿。

公开(公告)号：US5872811A

公开(公告)日：1999-02-16

申请号：US677661

申请日：1996-07-08

申请人： Alex Gusinov

发明人： Alex Gusinov

IPC分类号： H03F3/45 ,  H03K19/003 ,  H03K19/018 ,  H04L25/02 ,  H04B3/00 ,  H01P5/12 ,  H03K19/0175 ,  H03K19/086

CPC分类号： H04L25/0274 ,  H03F3/45085 ,  H03K19/00353 ,  H03K19/01812 ,  H03F2203/45352 ,  H03F2203/45702 ,  H04L25/028

摘要： A differential line driver having a pair of transistors arranged as a differential pair for driving a transmission line with a differential logic output signal produced in accordance with a differential logic input signal fed to the base electrodes of the pair of transistors. The differential line driver includes circuitry for suppressing EMI emissions generated by common mode voltage switching transients produced at the collector electrodes of the pair of transistors in response to changes in the differential logic input signal. The common mode voltage switching transient suppression circuitry includes a pair of additional transistors. The differential logic input signal is fed to base electrodes of the additional transistors, and through such additional transistors, to the base electrodes of the pair of transistors of the differential pair. In one embodiment of the invention, the additional transistors are connected in a Darlington pair arrangement with the pair of transistors of the differential pair. While switching transients is the common mode voltage is still present because of the transient base current produced in the pair of transistors of the differential pair, the magnitude of the base current is attenuated by a factor .beta.+1, where .beta. is the beta of the additional (i.e., Darlington pair) of transistors. In another embodiment of the invention, the pair of transistors of the differential pair are NPN transistors and the additional, Darlington connected, pair of transistors are PNP transistors.

摘要翻译： 一种差分线驱动器，具有一对晶体管，其配置为差分对，用于根据馈送到该对晶体管的基极的差分逻辑输入信号产生的差分逻辑输出信号来驱动传输线。 差分线路驱动器包括用于响应于差分逻辑输入信号的变化而抑制在该对晶体管的集电极处产生的共模电压切换瞬变产生的EMI辐射的电路。 共模电压切换瞬态抑制电路包括一对附加晶体管。 差分逻辑输入信号被馈送到附加晶体管的基极，并且通过这样的附加晶体管馈送到差分对对的一对晶体管的基极。 在本发明的一个实施例中，附加晶体管以达林顿对配置与差分对对的一对晶体管连接。 虽然开关瞬态是共模电压仍然存在，因为在差分对的一对晶体管中产生的瞬态基极电流，基极电流的幅度衰减一个因子β+1，其中β是 附加（即达林顿对）的晶体管。 在本发明的另一实施例中，差分对的一对晶体管是NPN晶体管，并且附加的达林顿连接的一对晶体管是PNP晶体管。

公开(公告)号：US20080018364A1

公开(公告)日：2008-01-24

申请号：US11490573

申请日：2006-07-21

申请人： John P. Clarkin ,  Alex Gusinov ,  Claudio Tuozzolo ,  Patrizio Vinciarelli

发明人： John P. Clarkin ,  Alex Gusinov ,  Claudio Tuozzolo ,  Patrizio Vinciarelli

IPC分类号： H03B1/00

CPC分类号： H02M1/08 ,  H03K17/133 ,  H03K17/6871 ,  H03K17/691

摘要： High-performance low-power isolated bootstrapped gate drive apparatus and methods are disclosed for driving high-side and floating transistors. The gate drivers use edge-triggered capacitive-coupled inputs. The gate drivers may include detection and delay circuitry to facilitate zero-voltage-switching of the high side or floating transistor and providing more robust rejection of false triggering. A capacitively coupled differential input edge triggered gate driver provides exceptional immunity to false triggering. The gate drivers may be used in transformer coupled drive circuits using transformers that need only support coupled pulses wide enough to be recognized as an edge by the input circuit.

公开(公告)号：US6160390A

公开(公告)日：2000-12-12

申请号：US494326

申请日：2000-01-28

申请人： Manuel R. Gheeraert ,  Jeffrey B. Van Auken ,  Alex Gusinov

发明人： Manuel R. Gheeraert ,  Jeffrey B. Van Auken ,  Alex Gusinov

IPC分类号： G05F3/24 ,  G05F3/26 ,  G05F3/04

CPC分类号： G05F3/242 ,  G05F3/262

摘要： A method and circuit for error current compensation is presented. The method includes the steps of generating a first current and an associated error current, generating a second current and an associated error current substantially equal to the first current and the first error current, respectively, and generating a third current substantially equal to the first current. The method includes the additional steps of extracting the second error current from the second current, generating a multiplied current equal to the scaled error current plus a multiplier error current, and combining the multiplied current with the first current and first error current.The circuit for error current compensation includes a first, second and third current source, a multiplier, and a first and second subtractor. The first subtractor provides a first difference current equal to the difference of a second current and second error current generated by the second current source and a third current generated by the third current source. The multiplier generates a predetermined multiple of the second error current and a multiplier error current at its output terminal. The second subtractor provides a second difference current at its output equal to the difference of the predetermined multiple of the second error current and a multiplier error current from the output of the multiplier and a first current and first error current generated by the first current source. The second difference current is substantially equal to the first current from the first current source.

摘要翻译： 提出了一种误差电流补偿的方法和电路。 该方法包括以下步骤：产生第一电流和相关联的误差电流，分别产生基本上等于第一电流和第一误差电流的第二电流和相关联的误差电流，并产生基本上等于第一电流的第三电流 。 该方法包括从第二电流提取第二误差电流，产生等于缩放误差电流乘以乘法器误差电流的倍增电流以及将乘法电流与第一电流和第一误差电流组合的附加步骤。 用于误差电流补偿的电路包括第一，第二和第三电流源，乘法器以及第一和第二减法器。 第一减法器提供等于由第二电流源产生的第二电流和第二误差电流与由第三电流源产生的第三电流的差的第一差分电流。 乘法器在其输出端产生第二误差电流的预定倍数和乘数误差电流。 第二减法器在其输出端提供等于第二误差电流的预定倍数与来自乘法器的输出的乘法器误差电流的差和由第一电流源产生的第一电流和第一误差电流的第二差分电流。 第二差分电流基本上等于来自第一电流源的第一电流。

公开(公告)号：US06172555B2

公开(公告)日：2001-01-09

申请号：US08942037

申请日：1997-10-01

申请人： Alex Gusinov

发明人： Alex Gusinov

IPC分类号： G05F110

CPC分类号： G05F3/30

摘要： A bandgap voltage reference circuit wherein a voltage change is induced across one element to compensate for the temperature-induced voltage change across another element. A stable voltage reference is realized across the series combination of the two elements. The circuit includes an operational amplifier, two transistors, a voltage divider and a non-linear temperature-dependent element. The operational amplifier has two input terminals and an output terminal. The voltage divider includes two resistor in series and is coupled to the operational amplifier output terminal. Each of the transistors has a collector corresponding to one of the operational amplifier input terminals, a base corresponding to one of the voltage divider resistor terminals, and an emitter coupled to a common voltage terminal. The non-linear temperature-dependent element is disposed between the voltage divider output terminal providing the lower voltage and the common voltage terminal. In one embodiment, the non-linear temperature-dependent element is a diode. In another embodiment, the non-linear temperature-dependent element is a bipolar junction transistor. The invention also relates to a method of providing a bandgap reference voltage.

摘要翻译： 一种带隙电压参考电路，其中在一个元件上感应电压变化以补偿跨另一元件的温度感应电压变化。 跨两个元件的串联组合实现了稳定的电压基准。 该电路包括运算放大器，两个晶体管，分压器和非线性温度依赖元件。 运算放大器有两个输入端和一个输出端。 分压器包括串联的两个电阻器，并耦合到运算放大器输出端子。 每个晶体管具有对应于运算放大器输入端之一的集电极，对应于分压电阻端子之一的基极和耦合到公共电压端子的发射极。 非线性温度依赖元件设置在提供较低电压的分压器输出端子和公共电压端子之间。 在一个实施例中，非线性温度依赖元件是二极管。 在另一个实施例中，非线性温度依赖元件是双极结型晶体管。 本发明还涉及一种提供带隙基准电压的方法。

公开(公告)号：US6147517A

公开(公告)日：2000-11-14

申请号：US162675

申请日：1998-09-29

申请人： Bassem M. AlNahas ,  Alex Gusinov ,  Jeffrey B. Van Auken

发明人： Bassem M. AlNahas ,  Alex Gusinov ,  Jeffrey B. Van Auken

IPC分类号： H03K3/356 ,  H03K17/693 ,  H03K5/22

CPC分类号： H03K17/693 ,  H03K3/356113

摘要： Control circuit for providing the greater of a supply voltage V.sub.CC and a battery voltage V.sub.BATT. A comparator compares V.sub.CC and V.sub.BATT, and provides output signals to an inverting gain stage. A switch receives output signals from the inverting gain stage and provides the greater of V.sub.CC and V.sub.BATT as the circuit output and as the comparator supply voltage. The circuit output voltage rapidly switches between V.sub.CC and V.sub.BATT as the comparison status of the two voltages changes.

摘要翻译： 用于提供更大的电源电压VCC和电池电压VBATT的控制电路。 比较器比较VCC和VBATT，并向反相增益级提供输出信号。 开关从反相增益级接收输出信号，并提供VCC和VBATT中较大的电路作为电路输出和比较器电源电压。 当两个电压的比较状态发生变化时，电路输出电压在VCC和VBATT之间快速切换。

公开(公告)号：US5455705A

公开(公告)日：1995-10-03

申请号：US212159

申请日：1994-03-14

申请人： Alex Gusinov

发明人： Alex Gusinov

IPC分类号： H03F1/08 ,  H03F3/08 ,  H03F3/45 ,  H04B10/158 ,  H01J40/14

CPC分类号： H03F3/45197 ,  H03F1/08 ,  H03F3/08 ,  H03F3/087 ,  H03F3/45098 ,  H03F3/45475 ,  H04B10/6932 ,  H03F2200/264 ,  H03F2200/78 ,  H03F2203/45136 ,  H03F2203/45494 ,  H03F2203/45528 ,  H03F2203/45722

摘要： A transimpedance amplifier for an optical receiver includes an integrator circuit for receiving a current input from a photodetector; an integrator capacitance between the input and output of the integrator circuit; a gain stage responsive to the output of the integrator circuit for providing an output voltage representative of the current input to the integrator circuit; and a feedback resistance connected between the output of the gain stage and the input of the integrator circuit for establishing the nominal gain of and in conjunction with the integrator circuit for setting the nominal bandwidth of the transimpedance amplifier; the gain stage may have a gain greater than unity for increasing the bandwidth by the factor of the gain and the gain stage may include a trimmable resistance for adjusting the gain both below and above unity.

摘要翻译： 用于光接收器的跨阻放大器包括用于接收来自光电检测器的电流输入的积分器电路; 积分器电路的输入和输出之间的积分器电容; 响应于积分器电路的输出的增益级，用于向积分器电路提供表示电流输入的输出电压; 以及连接在增益级的输出和积分器电路的输入之间的反馈电阻，用于建立与积分器电路的额定增益并与互阻放大器的额定带宽设置; 增益级可以具有大于单位的增益，以通过增益因子来增加带宽，并且增益级可以包括用于调整低于和高于单位的增益的可调整电阻。

公开(公告)号：US5424510A

公开(公告)日：1995-06-13

申请号：US113397

申请日：1993-08-27

申请人： Alex Gusinov ,  A. Paul Brokaw ,  Douglas W. Babcock ,  Lewis Counts ,  Lawrence DeVito ,  Robert A. Duris ,  Scott Wurcer

发明人： Alex Gusinov ,  A. Paul Brokaw ,  Douglas W. Babcock ,  Lewis Counts ,  Lawrence DeVito ,  Robert A. Duris ,  Scott Wurcer

IPC分类号： H01L27/082 ,  H05B3/02

CPC分类号： H01L27/0823

摘要： A circuit for varying the temperature of a first bipolar transistor in order to thermally compensate for self-heating effects of an associated device in a common signal path with the first transistor, the first transistor being configured within an isolated collector region. The circuit includes a second bipolar transistor provided within the isolated collector region and thermally coupled to the first transistor, the second transistor operable for providing heat to the first transistor to alter the temperature to a predetermined level, thus changing the operational voltage characteristics of the first transistor so as to minimize shifts in offset voltage.

摘要翻译： 一种用于改变第一双极晶体管的温度以便热补偿与第一晶体管在公共信号路径中的相关器件的自发热效应的电路，所述第一晶体管配置在隔离的集电极区域内。 该电路包括设置在隔离的集电极区域内并热耦合到第一晶体管的第二双极晶体管，第二晶体管可操作用于向第一晶体管提供热量以将温度改变到预定电平，从而改变第一晶体管的工作电压特性 晶体管，以最小化偏移电压的偏移。