专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US08143794B1 Low voltage light source driving circuit 有权
标题翻译：低压光源驱动电路
公开(公告)号：US08143794B1
公开(公告)日：2012-03-27
申请号：US12403320
申请日：2009-03-12
申请人： Eric Li , Shang-Kuan Tang , Yi Zhang
发明人： Eric Li , Shang-Kuan Tang , Yi Zhang
IPC分类号： H05B41/36
CPC分类号： H05B33/0812
摘要： A low voltage LED (Light Emitting Diode) driving circuit operates under low supply voltage to provide stable and reliable control of LEDs. The LED driving circuit includes a switching transistor to turn on or off an output current in the LED. The LED driving circuit also includes a control transistor for controlling the level of the output current. The two transistors are coupled via a node that is maintained at a low voltage to increase the voltage across the switching transistor. The increased voltage across the switching transistor allows faster switching and more stable control over different levels of output voltage. The LED driver also includes circuit components for matching the turn-on times and turn-off times for different levels of the output current.
摘要翻译：低电压LED（发光二极管）驱动电路在低电源电压下工作，为LED提供稳定可靠的控制。 LED驱动电路包括用于导通或关断LED中的输出电流的开关晶体管。 LED驱动电路还包括用于控制输出电流电平的控制晶体管。两个晶体管经由保持在低电压的节点耦合以增加开关晶体管两端的电压。开关晶体管两端的增加的电压允许更快的开关和对不同输出电压电平的更稳定的控制。 LED驱动器还包括用于匹配不同电平输出电流的导通时间和关断时间的电路组件。

2. 发明授权

US08334660B2 Light source driving circuit with low operating output voltage 有权
标题翻译：光源驱动电路，工作输出电压低
公开(公告)号：US08334660B2
公开(公告)日：2012-12-18
申请号：US12783484
申请日：2010-05-19
申请人： Eric Li , Chun Lu , Yi Zhang
发明人： Eric Li , Chun Lu , Yi Zhang
IPC分类号： G05F1/00 , H05B37/02 , H05B39/04 , H05B41/36 , H05B39/02 , H05B37/00 , H05B39/00 , H05B41/00
CPC分类号： H05B33/0827
摘要： A driving circuit for regulating current in a light source using a tracking component. The tracking component detects the voltage difference between an input node in the input stage and an output node in the output stage. The input stage is connected to a current source and includes an input transistor. The output stage is connected to the light source and includes an output transistor. The tracking component generates an output that controls the input and output transistors based on the voltage difference between the input node and the output node so that the voltage at the input node tracks the voltage at the output node. By using the tracking component, the LED driver can achieve accurate current control through one output transistor instead of cascaded transistors, resulting in lower output operating voltage and reduced power dissipation of the LED driver. Further, the tracking component is intermittently operated or shared across different channels to reduce energy consumption of the LED driver.
摘要翻译：一种用于使用跟踪部件调节光源中的电流的驱动电路。跟踪组件检测输入级中的输入节点与输出级中的输出节点之间的电压差。输入级连接到电流源并包括输入晶体管。输出级连接到光源并包括输出晶体管。跟踪组件产生输出，其基于输入节点和输出节点之间的电压差来控制输入和输出晶体管，使得输入节点处的电压跟踪输出节点处的电压。通过使用跟踪组件，LED驱动器可以通过一个输出晶体管而不是级联晶体管实现精确的电流控制，从而降低输出工作电压并降低LED驱动器的功耗。此外，跟踪部件在不同的通道间歇地操作或共享以减少LED驱动器的能量消耗。

3. 发明申请

US20110285321A1 LIGHT SOURCE DRIVING CIRCUIT WITH LOW OPERATING OUTPUT VOLTAGE 有权
标题翻译：具有低工作输出电压的光源驱动电路
公开(公告)号：US20110285321A1
公开(公告)日：2011-11-24
申请号：US12783484
申请日：2010-05-19
申请人： Eric Li , Chun Lu , Yi Zhang
发明人： Eric Li , Chun Lu , Yi Zhang
IPC分类号： H05B37/02
CPC分类号： H05B33/0827
摘要： A driving circuit for regulating current in a light source using a tracking component. The tracking component detects the voltage difference between an input node in the input stage and an output node in the output stage. The input stage is connected to a current source and includes an input transistor. The output stage is connected to the light source and includes an output transistor. The tracking component generates an output that controls the input and output transistors based on the voltage difference between the input node and the output node so that the voltage at the input node tracks the voltage at the output node. By using the tracking component, the LED driver can achieve accurate current control through one output transistor instead of cascaded transistors, resulting in lower output operating voltage and reduced power dissipation of the LED driver. Further, the tracking component is intermittently operated or shared across different channels to reduce energy consumption of the LED driver.
摘要翻译：一种用于使用跟踪部件调节光源中的电流的驱动电路。跟踪组件检测输入级中的输入节点与输出级中的输出节点之间的电压差。输入级连接到电流源，并包括输入晶体管。输出级连接到光源并包括输出晶体管。跟踪组件产生输出，其基于输入节点和输出节点之间的电压差来控制输入和输出晶体管，使得输入节点处的电压跟踪输出节点处的电压。通过使用跟踪组件，LED驱动器可以通过一个输出晶体管而不是级联晶体管实现精确的电流控制，从而降低输出工作电压并降低LED驱动器的功耗。此外，跟踪部件在不同的通道间歇地操作或共享以减少LED驱动器的能量消耗。

4. 发明申请

US20110158075A1 Enhanced linearity DVD writing current circuit 有权
公开(公告)号：US20110158075A1
公开(公告)日：2011-06-30
申请号：US12930204
申请日：2010-12-29
申请人： Eric Li , Yi Zhang
发明人： Eric Li , Yi Zhang
IPC分类号： G11B20/10
CPC分类号： G11B7/126
摘要： A writing current circuit (42) supplies a controlled electrical current to a laser diode (34) for recording data swiftly onto a DVD (16). A plurality of current sources (62) in the writing current circuit (42) supply electrical current directly to the laser diode (34). Each current source (62) respectively receives a single output signal from a current control register (52) included in the writing current circuit (42) which activates or deactivates the current source (62) for supplying a particular quantity of current to the laser diode (34). In one aspect, a pair of current reference signals received by the current source (62) control electrical current supply to the diode (34). Incorporated into these controlling reference signals is a simulation of electrical characteristics of the diode (34). In another aspect, each current source (62) responds to a logical inverse of the output signal from the current control register (52) for controlling overshoot in voltage applied across the diode (34).

5. 发明申请

US20100080096A1 HIGHER PERFORMACNE DVD WRITING CURRENT CIRCUIT 有权
标题翻译：高性能DVD刻录电流电路
公开(公告)号：US20100080096A1
公开(公告)日：2010-04-01
申请号：US12448761
申请日：2008-01-07
申请人： Eric Li , Yi Zhang
发明人： Eric Li , Yi Zhang
IPC分类号： G11B20/00
CPC分类号： G11B7/00456 , G11B7/126
摘要： A writing current circuit (42) supplies a controlled electrical current to a laser diode (34) for recording data swiftly onto a DVD (16). A plurality of current sources (62) in the writing current circuit (42) supply electrical current to the laser diode (34). Each current source (62) respectively receives a single output signal from a current control register (52) included in the writing current circuit (42) which activates or deactivates the current source (62) for supplying a particular quantity of electrical current to the laser diode (34). In each current source (62), electrical current flows to the laser diode (34) through a MOSFET output transistor (142) connected in series with the laser diode (34). Each current source's MOSFET output transistor (142) has a gate insulating layer which is thinner than the gate insulating layer conventionally used for a MOSFET output transistor (142) that is energized by the electrical potential the it applied to the writing current circuit (42).
摘要翻译：写入电流电路（42）将受控的电流提供给激光二极管（34），用于将数据迅速地记录到DVD（16）上。写入电流电路（42）中的多个电流源（62）向激光二极管（34）提供电流。每个电流源（62）分别从包括在写入电流电路（42）中的电流控制寄存器（52）接收单个输出信号，其激活或去激活用于向激光器提供特定数量的电流的电流源（62）二极管（34）。在每个电流源（62）中，电流通过与激光二极管（34）串联连接的MOSFET输出晶体管（142）流到激光二极管（34）。每个电流源的MOSFET输出晶体管（142）具有比通常用于MOSFET输出晶体管（142）的栅极绝缘层薄的栅极绝缘层，该栅极绝缘层被施加到写入电流电路（42）的电位激励，。

6. 发明申请

US20070076936A1 Fast alignment of large-scale sequences using linear space techniques 审中-公开
标题翻译：使用线性空间技术快速对齐大规模序列
公开(公告)号：US20070076936A1
公开(公告)日：2007-04-05
申请号：US11240763
申请日：2005-09-30
申请人： Eric Li , Tao Wang , Yi Zhang
发明人： Eric Li , Tao Wang , Yi Zhang
IPC分类号： G06K9/00 , G06K9/62 , G06F19/00
CPC分类号： G16B30/00 , G06K9/6206
摘要： Large scale sequences and other types of patterns may be matched or aligned quickly using a linear space technique. In one embodiment, the invention includes, calculating a similarity matrix of a first sequence against a second sequence, determining a lowest cost path through the matrix, where cost is a function of sequence alignment, dividing the similarity matrix into a plurality of blocks, determining local start points on the lowest cost path, the local start points each corresponding to a block through which the lowest cost path passes, dividing sequence alignment computation for the lowest cost path into a plurality of independent problems based on the local start points, solving each independent problem independently, and concatenating the solutions to generate an alignment path of the first sequence against the second sequence.
摘要翻译：使用线性空间技术可以快速匹配或对齐大规模序列和其他类型的图案。在一个实施例中，本发明包括：计算第一序列与第二序列的相似度矩阵，确定通过矩阵的最低成本路径，其中成本是序列比对的函数，将相似性矩阵划分为多个块，确定最低成本路径上的本地起始点，每个对应于最低成本路径通过的块的本地起始点，基于本地起始点将最低成本路径的序列比对计算分解为多个独立问题，解决每个独立的问题，并且连接解决方案以产生第一序列与第二序列的对准路径。

7. 发明授权

US08164995B2 Enhanced linearity DVD writing current circuit 有权
标题翻译：增强线性DVD写入电流电路
公开(公告)号：US08164995B2
公开(公告)日：2012-04-24
申请号：US12930204
申请日：2010-12-29
申请人： Eric Li , Yi Zhang
发明人： Eric Li , Yi Zhang
IPC分类号： G11B7/004
CPC分类号： G11B7/126
摘要： A writing current circuit (42) supplies a controlled electrical current to a laser diode (34) for recording data swiftly onto a DVD (16). A plurality of current sources (62) in the writing current circuit (42) supply electrical current directly to the laser diode (34). Each current source (62) respectively receives a single output signal from a current control register (52) included in the writing current circuit (42) which activates or deactivates the current source (62) for supplying a particular quantity of current to the laser diode (34). In one aspect, a pair of current reference signals received by the current source (62) control electrical current supply to the diode (34). Incorporated into these controlling reference signals is a simulation of electrical characteristics of the diode (34). In another aspect, each current source (62) responds to a logical inverse of the output signal from the current control register (52) for controlling overshoot in voltage applied across the diode (34).
摘要翻译：写入电流电路（42）将受控的电流提供给激光二极管（34），用于将数据迅速地记录到DVD（16）上。写入电流电路（42）中的多个电流源（62）直接向激光二极管（34）提供电流。每个电流源（62）分别从包括在写入电流电路（42）中的电流控制寄存器（52）接收单个输出信号，其激活或去激活用于向激光二极管提供特定数量的电流的电流源（62）（34）。在一个方面，由电流源（62）接收的一对电流参考信号控制对二极管（34）的电流供应。结合到这些控制参考信号中的是二极管（34）的电特性的模拟。在另一方面，每个电流源（62）响应来自电流控制寄存器（52）的输出信号的逻辑反相，用于控制施加在二极管（34）上的电压中的过冲。

8. 发明申请

US20080151733A1 Enhanced linearity DVD writing current circuit 有权
标题翻译：增强线性DVD写入电流电路
公开(公告)号：US20080151733A1
公开(公告)日：2008-06-26
申请号：US12074485
申请日：2008-03-03
申请人： Eric Li , Yi Zhang
发明人： Eric Li , Yi Zhang
IPC分类号： G11B7/00
CPC分类号： G11B7/126
摘要： A writing current circuit (42) supplies a controlled electrical current to a laser diode (34) for recording data swiftly onto a DVD (16). A plurality of current sources (62) in the writing current circuit (42) supply electrical current directly to the laser diode (34). Each current source (62) respectively receives a single output signal from a current control register (52) included in the writing current circuit (42) which activates or deactivates the current source (62) for supplying a particular quantity of current to the laser diode (34). In one aspect, a pair of current reference signals received by the current source (62) control electrical current supply to the diode (34). Incorporated into these controlling reference signals is a simulation of electrical characteristics of the diode (34). In another aspect, each current source (62) responds to a logical inverse of the output signal from the current control register (52) for controlling overshoot in voltage applied across the diode (34).
摘要翻译：写入电流电路（42）将受控的电流提供给激光二极管（34），用于将数据迅速地记录到DVD（16）上。写入电流电路（42）中的多个电流源（62）直接向激光二极管（34）提供电流。每个电流源（62）分别从包括在写入电流电路（42）中的电流控制寄存器（52）接收单个输出信号，其激活或去激活用于向激光二极管提供特定数量的电流的电流源（62）（34）。在一个方面，由电流源（62）接收的一对电流参考信号控制对二极管（34）的电流供应。结合到这些控制参考信号中的是二极管（34）的电特性的模拟。在另一方面，每个电流源（62）响应来自电流控制寄存器（52）的输出信号的逻辑反相，用于控制施加在二极管（34）上的电压中的过冲。

9. 发明授权

US07889609B2 Enhanced linearity DVD writing current circuit 有权
标题翻译：增强线性DVD写入电流电路
公开(公告)号：US07889609B2
公开(公告)日：2011-02-15
申请号：US12074485
申请日：2008-03-03
申请人： Eric Li , Yi Zhang
发明人： Eric Li , Yi Zhang
IPC分类号： G11B7/004
CPC分类号： G11B7/126
摘要： A writing current circuit (42) supplies a controlled electrical current to a laser diode (34) for recording data swiftly onto a DVD (16). A plurality of current sources (62) in the writing current circuit (42) supply electrical current directly to the laser diode (34). Each current source (62) respectively receives a single output signal from a current control register (52) included in the writing current circuit (42) which activates or deactivates the current source (62) for supplying a particular quantity of current to the laser diode (34). In one aspect, a pair of current reference signals received by the current source (62) control electrical current supply to the diode (34). Incorporated into these controlling reference signals is a simulation of electrical characteristics of the diode (34). In another aspect, each current source (62) responds to a logical inverse of the output signal from the current control register (52) for controlling overshoot in voltage applied across the diode (34).
摘要翻译：写入电流电路（42）将受控的电流提供给激光二极管（34），用于将数据迅速地记录到DVD（16）上。写入电流电路（42）中的多个电流源（62）直接向激光二极管（34）提供电流。每个电流源（62）分别从包括在写入电流电路（42）中的电流控制寄存器（52）接收单个输出信号，其激活或去激活用于向激光二极管提供特定数量的电流的电流源（62）（34）。在一个方面，由电流源（62）接收的一对电流参考信号控制对二极管（34）的电流供应。结合到这些控制参考信号中的是二极管（34）的电特性的模拟。在另一方面，每个电流源（62）响应来自电流控制寄存器（52）的输出信号的逻辑反相，用于控制施加在二极管（34）上的电压中的过冲。

10. 发明授权

US07916613B2 Higher performance DVD writing current circuit 有权
标题翻译：更高性能的DVD写入电流电路
公开(公告)号：US07916613B2
公开(公告)日：2011-03-29
申请号：US12448761
申请日：2008-01-07
申请人： Eric Li , Yi Zhang
发明人： Eric Li , Yi Zhang
IPC分类号： G11B7/00
CPC分类号： G11B7/00456 , G11B7/126
摘要： A writing current circuit (42) supplies a controlled electrical current to a laser diode (34) for recording data swiftly onto a DVD (16). A plurality of current sources (62) in the writing current circuit (42) supply electrical current to the laser diode (34). Each current source (62) respectively receives a single output signal from a current control register (52) included in the writing current circuit (42) which activates or deactivates the current source (62) for supplying a particular quantity of electrical current to the laser diode (34). In each current source (62), electrical current flows to the laser diode (34) through a MOSFET output transistor (142) connected in series with the laser diode (34). Each current source's MOSFET output transistor (142) has a gate insulating layer which is thinner than the gate insulating layer conventionally used for a MOSFET output transistor (142) that is energized by the electrical potential the it applied to the writing current circuit (42).
摘要翻译：写入电流电路（42）将受控电流提供给激光二极管（34），用于将数据迅速地记录到DVD（16）上。写入电流电路（42）中的多个电流源（62）向激光二极管（34）提供电流。每个电流源（62）分别从包括在写入电流电路（42）中的电流控制寄存器（52）接收单个输出信号，其激活或去激活用于向激光器提供特定数量的电流的电流源（62）二极管（34）。在每个电流源（62）中，电流通过与激光二极管（34）串联连接的MOSFET输出晶体管（142）流到激光二极管（34）。每个电流源的MOSFET输出晶体管（142）具有比通常用于MOSFET输出晶体管（142）的栅极绝缘层薄的栅极绝缘层，该栅极绝缘层被施加到写入电流电路（42）的电位激励，。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式