公开(公告)号：US06404273B1

公开(公告)日：2002-06-11

申请号：US09785083

申请日：2001-02-13

申请人： Stefano Gregori ,  Osama Khouri ,  Andrea Pierin ,  Rino Micheloni ,  Guido Torelli ,  Dario Soltesz

发明人： Stefano Gregori ,  Osama Khouri ,  Andrea Pierin ,  Rino Micheloni ,  Guido Torelli ,  Dario Soltesz

IPC分类号： G05F110

CPC分类号： H02M3/073 ,  H02M2003/075

摘要： A charge pump voltage booster circuit for generating, from a first voltage supplied at the input to the circuit, an output voltage with an absolute value that is higher than the first voltage, comprises at least one stage having a charge pass element and a charge storage capacitor with a first plate connected to an output of the charge pass element and a second plate controlled by a square-wave control signal of period varying between a reference voltage and the first voltage, supplied to the second plate of the capacitor by means of a driver circuit comprising a pull-up transistor and a pull-down transistor connected in series between the first voltage and the reference voltage. Means of overdriving at least one of the said transistors, either the pull-up transistor or the pull-down transistor, supply to the said at least one transistor a firing control voltage that has a higher absolute value than the first voltage.

摘要翻译： 一种电荷泵升压电路，用于根据从所述电路的输入端提供的第一电压产生具有高于所述第一电压的绝对值的输出电压，所述电压泵电压升压电路包括至少一个具有充电通路元件和电荷存储器 电容器，其具有连接到所述电荷通过元件的输出端的第一板，以及第二板，其由在基准电压和所述第一电压之间变化的周期的方波控制信号控制，所述方波控制信号通过 驱动器电路包括串联在第一电压和参考电压之间的上拉晶体管和下拉晶体管。 过载驱动所述晶体管中的至少一个（上拉晶体管或下拉晶体管）的装置向所述至少一个晶体管提供具有比第一电压更高的绝对值的点火控制电压。

公开(公告)号：US06816001B2

公开(公告)日：2004-11-09

申请号：US10290030

申请日：2002-11-07

申请人： Osama Khouri ,  Andrea Pierin ,  Dario Soltesz ,  Guido Torelli

发明人： Osama Khouri ,  Andrea Pierin ,  Dario Soltesz ,  Guido Torelli

IPC分类号： G05F146

CPC分类号： G11C5/145 ,  H02M3/073 ,  H02M2001/0032 ,  H02M2003/075 ,  H02M2003/077 ,  Y02B70/16

摘要： A charge pump circuit, connected between a first voltage reference and an output terminal, comprises at least two parallel-coupled stages having an elementary charge pump circuit connected between said first voltage reference and said output terminal, and adjustment circuitry connected between said output terminal and respective control terminals of said at least two stages. This adjustment circuitry is arranged to select for actuation an appropriate combination of these elementary stages according to the current absorbed from a load connected to the output terminal.

公开(公告)号：US20080291956A1

公开(公告)日：2008-11-27

申请号：US11367726

申请日：2006-03-03

申请人： Christophe Neron ,  Cristiano Bazzani ,  Dario Soltesz ,  Ramakrishna Shivaram

发明人： Christophe Neron ,  Cristiano Bazzani ,  Dario Soltesz ,  Ramakrishna Shivaram

IPC分类号： H01S3/00

CPC分类号： H01S5/06832

摘要： Various systems and methods are provided to achieve laser power control. In one embodiment, a system is provided that comprises a counter that holds a digital value. An digital-to-analog converter is employed to convert the digital value to an analog current. A data threshold current is generated by a laser driver based upon the analog current. The data threshold current is employed to represent a data value in a data signal employed to drive a laser diode. Also, circuitry is employed to adjust the digital value based upon a comparison between a target threshold current and a feedback current generated from a laser output of the laser diode.

摘要翻译： 提供各种系统和方法来实现激光功率控制。 在一个实施例中，提供了一种包括保持数字值的计数器的系统。 采用数模转换器将数字值转换为模拟电流。 基于模拟电流由激光驱动器产生数据阈值电流。 数据阈值电流用于表示用于驱动激光二极管的数据信号中的数据值。 而且，基于目标阈值电流和从激光二极管的激光输出产生的反馈电流之间的比较，采用电路来调节数字值。

公开(公告)号：US20070228257A1

公开(公告)日：2007-10-04

申请号：US11392175

申请日：2006-03-29

申请人： Dario Soltesz ,  Cristiano Bazzani ,  Wim Cops

发明人： Dario Soltesz ,  Cristiano Bazzani ,  Wim Cops

IPC分类号： H03F3/08

CPC分类号： H03F1/08 ,  H03F1/22 ,  H03F1/34 ,  H03F3/087 ,  H03F3/343 ,  H03F3/347 ,  H03F3/45475 ,  H03F2200/291 ,  H03F2200/36 ,  H03F2200/375 ,  H03F2200/381 ,  H03F2200/387 ,  H03F2203/45528

摘要： A trans-impedance amplifier receives an input current and is operable to generate an output voltage responsive to the input current. The amplifier is responsive to an increased range of input currents and has a wide bandwidth. The amplifier includes an input stage having a first and a second transistor and is configured to receive the input current. The amplifier includes an output stage coupled to the input stage and having a third and a fourth transistor. A variable resistor is coupled to the output stage to adjust the amount of current in the output stage. A variable current source is coupled to the output stage and is operable to adjust the amount of current in the output stage. A output driver, which is coupled to the output stage, includes at least another transistor. The output driver is operable to provide the output voltage and is operable to reduce the output impedance of the amplifier.

摘要翻译： 跨阻放大器接收输入电流并且可操作以响应于输入电流产生输出电压。 放大器响应于增加的输入电流范围并具有宽带宽。 放大器包括具有第一和第二晶体管的输入级，并且被配置为接收输入电流。 放大器包括耦合到输入级并具有第三和第四晶体管的输出级。 可变电阻器耦合到输出级以调节输出级中的电流量。 可变电流源耦合到输出级，并且可操作以调节输出级中的电流量。 耦合到输出级的输出驱动器至少包括另一个晶体管。 输出驱动器可操作以提供输出电压并且可操作以减小放大器的输出阻抗。

公开(公告)号：US07724792B2

公开(公告)日：2010-05-25

申请号：US11367726

申请日：2006-03-03

申请人： Christophe Neron ,  Cristiano Bazzani ,  Dario Soltesz ,  Ramakrishna Shivaram

发明人： Christophe Neron ,  Cristiano Bazzani ,  Dario Soltesz ,  Ramakrishna Shivaram

IPC分类号： H01S3/00

CPC分类号： H01S5/06832

摘要： Various systems and methods are provided to achieve laser power control. In one embodiment, a system is provided that comprises a counter that holds a digital value. An digital-to-analog converter is employed to convert the digital value to an analog current. A data threshold current is generated by a laser driver based upon the analog current. The data threshold current is employed to represent a data value in a data signal employed to drive a laser diode. Also, circuitry is employed to adjust the digital value based upon a comparison between a target threshold current and a feedback current generated from a laser output of the laser diode.

摘要翻译： 提供各种系统和方法来实现激光功率控制。 在一个实施例中，提供了一种包括保持数字值的计数器的系统。 采用数模转换器将数字值转换为模拟电流。 基于模拟电流由激光驱动器产生数据阈值电流。 数据阈值电流用于表示用于驱动激光二极管的数据信号中的数据值。 而且，基于目标阈值电流和从激光二极管的激光输出产生的反馈电流之间的比较，采用电路来调节数字值。

公开(公告)号：US07319220B2

公开(公告)日：2008-01-15

申请号：US11392175

申请日：2006-03-29

申请人： Dario Soltesz ,  Cristiano Bazzani ,  Wim Cops

发明人： Dario Soltesz ,  Cristiano Bazzani ,  Wim Cops

IPC分类号： G01J1/44 ,  H03F3/08 ,  H01L31/00 ,  H01J40/14

CPC分类号： H03F1/08 ,  H03F1/22 ,  H03F1/34 ,  H03F3/087 ,  H03F3/343 ,  H03F3/347 ,  H03F3/45475 ,  H03F2200/291 ,  H03F2200/36 ,  H03F2200/375 ,  H03F2200/381 ,  H03F2200/387 ,  H03F2203/45528

摘要： A trans-impedance amplifier receives an input current and is operable to generate an output voltage responsive to the input current. The amplifier is responsive to an increased range of input currents and has a wide bandwidth. The amplifier includes an input stage having a first and a second transistor and is configured to receive the input current. The amplifier includes an output stage coupled to the input stage and having a third and a fourth transistor. A variable resistor is coupled to the output stage to adjust the amount of current in the output stage. A variable current source is coupled to the output stage and is operable to adjust the amount of current in the output stage. A output driver, which is coupled to the output stage, includes at least another transistor. The output driver is operable to provide the output voltage and is operable to reduce the output impedance of the amplifier.

摘要翻译： 跨阻放大器接收输入电流并且可操作以响应于输入电流产生输出电压。 放大器响应于增加的输入电流范围并具有宽带宽。 放大器包括具有第一和第二晶体管的输入级，并且被配置为接收输入电流。 放大器包括耦合到输入级并具有第三和第四晶体管的输出级。 可变电阻器耦合到输出级以调节输出级中的电流量。 可变电流源耦合到输出级，并且可操作以调节输出级中的电流量。 耦合到输出级的输出驱动器至少包括另一个晶体管。 输出驱动器可操作以提供输出电压并且可操作以减小放大器的输出阻抗。