公开(公告)号：US07166826B1

公开(公告)日：2007-01-23

申请号：US10294469

申请日：2002-11-13

申请人： David Kunst ,  Steven Martinez ,  Robert James Lewandowski ,  Peter Chambers ,  Joseph James Judkins, III ,  Luis Torres ,  Tom Lindsay

发明人： David Kunst ,  Steven Martinez ,  Robert James Lewandowski ,  Peter Chambers ,  Joseph James Judkins, III ,  Luis Torres ,  Tom Lindsay

IPC分类号： H01S3/00 ,  H01S3/13

CPC分类号： H01S5/0683 ,  H01S5/0617 ,  H01S5/06804 ,  H01S5/06808

摘要： An automatic power control system provides a control signal that regulates the output power of at least one laser diode. Coarse adjustment of the control signal is provided by a first means, preferably a digital variable resistor, while fine adjustment and compensation is provided by a second means, preferably by a digital-to-analog converter that receives an input signal proportional to a sensed control system parameter. The control system includes an operational amplifier having a first input coupled to sense output power, and a second input coupled to a DAC to provide finer resolution control. Memory can store system parameter or system parameter variations that can be coupled to the DAC and/or variable resistor to enhance system stability over ambient variations.

摘要翻译： 自动功率控制系统提供调节至少一个激光二极管的输出功率的控制信号。 控制信号的粗调是由第一装置，优选数字可变电阻器提供的，而微调和补偿由第二装置提供，优选地由接收与感测控制成正比的输入信号的数 - 模转换器 系统参数。 控制系统包括运算放大器，其具有耦合以感测输出功率的第一输入，以及耦合到DAC的第二输入以提供更精细的分辨率控制。 存储器可以存储可耦合到DAC和/或可变电阻器的系统参数或系统参数变化，以增强系统在环境变化方面的稳定性。

公开(公告)号：US07423247B2

公开(公告)日：2008-09-09

申请号：US11626302

申请日：2007-01-23

申请人： David Kunst ,  Steven Martinez ,  Robert James Lewandowski ,  Peter Chambers ,  Joseph James Judkins ,  Luis Torres ,  Thomas A. Lindsay

发明人： David Kunst ,  Steven Martinez ,  Robert James Lewandowski ,  Peter Chambers ,  Joseph James Judkins ,  Luis Torres ,  Thomas A. Lindsay

IPC分类号： G01J1/32 ,  H01S3/00 ,  H01S3/13

CPC分类号： H01S5/0683 ,  H01S5/0617 ,  H01S5/06804 ,  H01S5/06808

摘要： An automatic power control system provides a control signal that regulates the output power of at least one laser diode. Coarse adjustment of the control signal is provided by a first means, preferably a digital variable resistor, while fine adjustment and compensation is provided by a second means, preferably by a digital-to-analog converter that receives an input signal proportional to a sensed control system parameter. The control system includes an operational amplifier having a first input coupled to sense output power, and a second input coupled to a DAC to provide finer resolution control. Memory can store system parameter or system parameter variations that can be coupled to the DAC and/or variable resistor to enhance system stability over ambient variations.

摘要翻译： 自动功率控制系统提供调节至少一个激光二极管的输出功率的控制信号。 控制信号的粗调是由第一装置，优选数字可变电阻器提供的，而微调和补偿由第二装置提供，优选地由接收与感测控制成正比的输入信号的数 - 模转换器 系统参数。 控制系统包括运算放大器，其具有耦合以感测输出功率的第一输入，以及耦合到DAC的第二输入以提供更精细的分辨率控制。 存储器可以存储可耦合到DAC和/或可变电阻器的系统参数或系统参数变化，以增强系统在环境变化方面的稳定性。

公开(公告)号：US20070114361A1

公开(公告)日：2007-05-24

申请号：US11626302

申请日：2007-01-23

申请人： David Kunst ,  Steven Martinez ,  Robert Lewandowski ,  Peter Chambers ,  Joseph Judkins ,  Luis Torres ,  Tom Lindsay

发明人： David Kunst ,  Steven Martinez ,  Robert Lewandowski ,  Peter Chambers ,  Joseph Judkins ,  Luis Torres ,  Tom Lindsay

IPC分类号： G01J1/32

CPC分类号： H01S5/0683 ,  H01S5/0617 ,  H01S5/06804 ,  H01S5/06808

摘要： An automatic power control system provides a control signal that regulates the output power of at least one laser diode. Coarse adjustment of the control signal is provided by a first means, preferably a digital variable resistor, while fine adjustment and compensation is provided by a second means, preferably by a digital-to-analog converter that receives an input signal proportional to a sensed control system parameter. The control system includes an operational amplifier having a first input coupled to sense output power, and a second input coupled to a DAC to provide finer resolution control. Memory can store system parameter or system parameter variations that can be coupled to the DAC and/or variable resistor to enhance system stability over ambient variations.

摘要翻译： 自动功率控制系统提供调节至少一个激光二极管的输出功率的控制信号。 控制信号的粗调是由第一装置，优选数字可变电阻器提供的，而微调和补偿由第二装置提供，优选地由接收与感测控制成正比的输入信号的数 - 模转换器 系统参数。 控制系统包括运算放大器，其具有耦合以感测输出功率的第一输入，以及耦合到DAC的第二输入以提供更精细的分辨率控制。 存储器可以存储可耦合到DAC和/或可变电阻器的系统参数或系统参数变化，以增强系统在环境变化方面的稳定性。

公开(公告)号：US09141748B2

公开(公告)日：2015-09-22

申请号：US12583552

申请日：2009-08-21

申请人： Steven Huynh ,  David Kunst

发明人： Steven Huynh ,  David Kunst

IPC分类号： G06F17/50

CPC分类号： G06F17/5072 ,  H01L2224/49171 ,  H01L2924/0002 ,  H01L2924/00

摘要： An integrated circuit (IC) and fabrication method thereof is provided that include the steps of specifying a plurality of required tile modules suitable for a particular end application, each of the modular tiles being configured to perform a predetermined function and constructed to have approximately the same length and width dimensions. The modular tiles are used to form the IC in a standard IC fabrication process. In many implementations, physical layout of the IC does not include the step of routing. Capabilities also include configuring the modular tiles to have programmable performance parameters and configuring the modular tiles to cooperate usefully with one another based on a programmable parameter.

公开(公告)号：US07961483B2

公开(公告)日：2011-06-14

申请号：US12386609

申请日：2009-04-20

申请人： Steven Huynh ,  Matthew Grant ,  David Kunst ,  Zhibo Tao

发明人： Steven Huynh ,  Matthew Grant ,  David Kunst ,  Zhibo Tao

IPC分类号： H02M3/335

CPC分类号： H02M3/33507 ,  H02M3/33523 ,  H02M2001/0009

摘要： A comparing circuit and a control loop are used to maintain the peak level of current flowing through an inductor of a flyback converter. An inductor switch control signal controls an inductor switch through which the inductor current flows. The inductor current increases at a ramp-up rate during a ramp time and stops increasing at the end of the ramp time. The comparing circuit generates a timing signal that indicates a target time at which the inductor current would reach a predetermined current limit if the inductor current continued to increase at the ramp-up rate. The control loop then receives the timing signal and compares the target time to the end of the ramp time. The pulse width of the inductor switch control signal is increased when the target time occurs after the end of the ramp time. Adjusting the pulse width controls the peak of the inductor current.

摘要翻译： 使用比较电路和控制回路来保持流过反激式转换器的电感器的电流的峰值电平。 电感开关控制信号控制电感电流流过的电感开关。 电感电流在斜坡时间内以斜升速率增加，并在斜坡时间结束时停止增加。 比较电路产生一个定时信号，其指示如果电感器电流以升高速率继续增加，则电感器电流将达到预定电流极限的目标时间。 然后，控制环路接收定时信号，并将目标时间与斜坡时间结束进行比较。 当斜坡时间结束后，当目标时间发生时，电感开关控制信号的脉冲宽度就会增加。 调整脉冲宽度可以控制电感电流的峰值。

公开(公告)号：US07869229B2

公开(公告)日：2011-01-11

申请号：US11897131

申请日：2007-08-28

申请人： Steven Huynh ,  Matthew Grant ,  David Kunst ,  Zhibo Tao

发明人： Steven Huynh ,  Matthew Grant ,  David Kunst ,  Zhibo Tao

IPC分类号： H02M3/335

CPC分类号： H02M3/33523

摘要： A cord correction circuit in a primary-side-controlled flyback converter compensates for the loss of output voltage caused by the resistance of the charger cord. In one embodiment, a correction voltage is subtracted from a feedback voltage received from a primary-side auxiliary inductor. A pre-amplifier then compares a reference voltage to the corrected feedback voltage. In another embodiment, the correction voltage is summed with the reference voltage, and the pre-amplifier compares the feedback voltage to the corrected reference voltage. The difference between the voltages on the input leads of the pre-amplifier is used to increase the output voltage to compensate for the voltage lost through the charger cord. The flyback converter also has a comparing circuit and a control loop that maintain the peak level of current flowing through the primary inductor of the converter. Adjusting the frequency and pulse width of an inductor switch signal controls the converter output current.

摘要翻译： 初级侧控制反激转换器中的电线校正电路补偿由充电器线的电阻引起的输出电压的损失。 在一个实施例中，从从初级侧辅助电感器接收的反馈电压中减去校正电压。 然后，前置放大器将参考电压与校正的反馈电压进行比较。 在另一个实施例中，校正电压与参考电压相加，并且前置放大器将反馈电压与校正的参考电压进行比较。 前置放大器的输入引脚上的电压之间的差异用于增加输出电压以补偿通过充电器线损失的电压。 反激转换器还具有比较电路和控制回路，其保持流经转换器初级电感器的电流的峰值电平。 调整电感开关信号的频率和脉冲宽度可控制转换器的输出电流。

公开(公告)号：US07697308B2

公开(公告)日：2010-04-13

申请号：US12315418

申请日：2008-12-03

申请人： Steven Huynh ,  Matthew Grant ,  David Kunst ,  Zhibo Tao

发明人： Steven Huynh ,  Matthew Grant ,  David Kunst ,  Zhibo Tao

IPC分类号： H02M3/335

CPC分类号： H02M3/33507 ,  H02M3/33523 ,  H02M2001/0009

摘要： A comparing circuit and a control loop are used to maintain the peak level of current flowing through an inductor of a flyback converter. An inductor switch control signal controls an inductor switch through which the inductor current flows. The inductor current increases at a ramp-up rate during a ramp time and stops increasing at the end of the ramp time. The comparing circuit generates a timing signal that indicates a target time at which the inductor current would reach a predetermined current limit if the inductor current continued to increase at the ramp-up rate. The control loop then receives the timing signal and compares the target time to the end of the ramp time. The pulse width of the inductor switch control signal is increased when the target time occurs after the end of the ramp time. Adjusting the pulse width controls the peak of the inductor current.

摘要翻译： 使用比较电路和控制回路来保持流过反激式转换器的电感器的电流的峰值电平。 电感开关控制信号控制电感电流流过的电感开关。 电感电流在斜坡时间内以斜升速率增加，并在斜坡时间结束时停止增加。 比较电路产生一个定时信号，其指示如果电感器电流以升高速率继续增加，则电感器电流将达到预定电流极限的目标时间。 然后，控制环路接收定时信号，并将目标时间与斜坡时间结束进行比较。 当斜坡时间结束后，当目标时间发生时，电感开关控制信号的脉冲宽度就会增加。 调整脉冲宽度可以控制电感电流的峰值。

公开(公告)号：US08842482B1

公开(公告)日：2014-09-23

申请号：US13538291

申请日：2012-06-29

申请人： David Kunst ,  Hans Van Antwerpen

发明人： David Kunst ,  Hans Van Antwerpen

IPC分类号： G11C7/06 ,  G11C11/34 ,  G11C16/04

CPC分类号： G11C7/20 ,  G11C7/04 ,  G11C7/065 ,  G11C7/12 ,  G11C7/14 ,  G11C7/227 ,  G11C17/16 ,  G11C2029/4402

摘要： Embodiments of a circuit and method for setting initial trim bits in an integrated circuit (IC) are described. The circuit includes a memory array including a plurality of trim bit cells to store and provide trim bits to trim registers in a main circuit of the IC following energizing of the IC. The memory array further includes replica bit circuitry to generate a number of replica bits. A logic circuit coupled to the memory array and the main circuit of the IC is configured to receive the replica bits, and to provide a signal to the IC that indicates when the trim bits are valid. In one embodiment, the circuit further includes redundancy check logic configured to receive a number of the trim bits from the memory array, compare the number of trim bits to a pre-determined or computed value, and to provide a BITS_OK signal to the logic circuit.

摘要翻译： 描述用于设置集成电路（IC）中的初始修整位的电路和方法的实施例。 该电路包括存储器阵列，该存储器阵列包括多个修整位单元，以在IC通电之后存储并提供修整位以修剪IC的主电路中的寄存器。 存储器阵列还包括复制位电路以产生多个复制位。 耦合到存储器阵列和IC的主电路的逻辑电路被配置为接收复制位，并且向IC提供指示修剪位何时有效的信号。 在一个实施例中，电路还包括冗余校验逻辑，其被配置为从存储器阵列接收多个修剪位，将修整位的数目与预定或计算的值进行比较，并向逻辑电路提供BITS_OK信号 。

公开(公告)号：US08225264B2

公开(公告)日：2012-07-17

申请号：US12583545

申请日：2009-08-21

申请人： Steven Huynh ,  David Kunst

发明人： Steven Huynh ,  David Kunst

IPC分类号： G06F17/50

CPC分类号： G06F17/5072 ,  H01L2224/49171 ,  H01L2924/0002 ,  H01L2924/00

摘要： An integrated circuit (IC) and fabrication method thereof is provided that include the steps of specifying a plurality of required tile modules suitable for a particular end application, each of the modular tiles being configured to perform a predetermined function and constructed to have approximately the same length and width dimensions. The modular tiles are used to form the IC in a standard IC fabrication process. In many implementations, physical layout of the IC does not include the step of routing. Capabilities also include configuring the modular tiles to have programmable performance parameters and configuring the modular tiles to cooperate usefully with one another based on a programmable parameter.

公开(公告)号：US08102676B2

公开(公告)日：2012-01-24

申请号：US12927940

申请日：2010-11-29

申请人： Steven Huynh ,  Matthew Grant ,  David Kunst ,  Zhibo Tao

发明人： Steven Huynh ,  Matthew Grant ,  David Kunst ,  Zhibo Tao

IPC分类号： H02M3/335

CPC分类号： H02M3/33523

摘要： A cord correction circuit in a primary-side-controlled flyback converter compensates for the loss of output voltage caused by the resistance of the charger cord. In one embodiment, a correction voltage is subtracted from a feedback voltage received from a primary-side auxiliary inductor. A pre-amplifier then compares a reference voltage to the corrected feedback voltage. In another embodiment, the correction voltage is summed with the reference voltage, and the pre-amplifier compares the feedback voltage to the corrected reference voltage. The difference between the voltages on the input leads of the pre-amplifier is used to increase the output voltage to compensate for the voltage lost through the charger cord. The flyback converter also has a comparing circuit and a control loop that maintain the peak level of current flowing through the primary inductor of the converter. Adjusting the frequency and pulse width of an inductor switch signal controls the converter output current.

摘要翻译： 初级侧控制反激转换器中的电线校正电路补偿由充电器线的电阻引起的输出电压的损失。 在一个实施例中，从从初级侧辅助电感器接收的反馈电压中减去校正电压。 然后，前置放大器将参考电压与校正的反馈电压进行比较。 在另一个实施例中，校正电压与参考电压相加，并且前置放大器将反馈电压与校正的参考电压进行比较。 前置放大器的输入引脚上的电压之间的差异用于增加输出电压以补偿通过充电器线损失的电压。 反激转换器还具有比较电路和控制回路，其保持流经转换器初级电感器的电流的峰值电平。 调整电感开关信号的频率和脉冲宽度可控制转换器的输出电流。