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. 发明申请

US20130093338A1 DRIVING CIRCUITS FOR LIGHT EMITTING ELEMENTS 有权
标题翻译：用于发光元件的驱动电路
公开(公告)号：US20130093338A1
公开(公告)日：2013-04-18
申请号：US13275954
申请日：2011-10-18
申请人： Sean S. Chen , Wenbo Liang
发明人： Sean S. Chen , Wenbo Liang
IPC分类号： H05B37/02
CPC分类号： H05B33/0812 , H05B33/0827 , Y02B20/343 , Y02B20/345
摘要： A circuit for driving light emitting elements, such as LEDs, includes a first transistor having a source coupled to ground through a first resistive element, and a second transistor having a gate electrically coupled to a gate of the first transistor, a source electrically coupled to ground, and a drain for electrical connection to a first group of light emitting elements. The circuit also includes circuitry to provide a predetermined voltage at the source of the first transistor, circuitry to compensate for a difference in respective gate-source voltages of the first and second transistors, and circuitry to compensate for a difference in respective drain-source voltages of the first and second transistors. In some implementations, the circuit can achieve relatively low power consumption.
摘要翻译：用于驱动诸如LED的发光元件的电路包括具有通过第一电阻元件耦合到地的源极的第一晶体管和具有电耦合到第一晶体管的栅极的栅极的第二晶体管，源极电耦合到接地和用于电连接到第一组发光元件的漏极。电路还包括在第一晶体管的源极处提供预定电压的电路，用于补偿第一和第二晶体管的各个栅极 - 源极电压的差异的电路，以及用于补偿各个漏极 - 源极电压的第一和第二晶体管。在一些实现中，电路可以实现相对低的功耗。

2. 发明申请

US20060180747A1 Ambient light sensor structure 有权
标题翻译：环境光传感器结构
公开(公告)号：US20060180747A1
公开(公告)日：2006-08-17
申请号：US11174456
申请日：2005-07-06
申请人： Wenbo Liang , Yuh-Min Lin
发明人： Wenbo Liang , Yuh-Min Lin
IPC分类号： H01L27/00
CPC分类号： G01J1/44 , G01J1/4204
摘要： An ambient light sensor structure and its circuit characteristic are disclosed, and the ambient light sensor structure includes a power supply, a converter, and a pulse process unit. The power supply is to provide a reference voltage interface, a high voltage interface and a low voltage interface. The converter includes a first current to pulse converter, a second current to pulse converter, a first light sensor and a second light sensor. The pulse process unit comprises four circuit blocking with a signal subtract component, a counter, a digital to analog converter and a buffer by series connection. Without incidence light, two light sensors would produce a dark current due to the material character of two photo diodes. Therefore, two current to pulse converters convert the dark current into a pulse signal and transmit the pulse signal to the signal subtract component in order to cancel the dark current. By the method of mention above, the dark current that caused by the material characteristic of the two light sensors can be eliminated.
摘要翻译：公开了环境光传感器结构及其电路特性，环境光传感器结构包括电源，转换器和脉冲处理单元。电源是提供参考电压接口，高压接口和低电压接口。转换器包括第一电流对脉冲转换器，第二电流对脉冲转换器，第一光传感器和第二光传感器。脉冲处理单元包括具有信号减法分量的四个电路阻塞，计数器，数模转换器和串联连接的缓冲器。没有入射光，由于两个光电二极管的材料特性，两个光传感器将产生暗电流。因此，两个电流脉冲转换器将暗电流转换成脉冲信号，并将脉冲信号发送到信号减法分量，以消除暗电流。通过上述方法，可以消除由两个光传感器的材料特性引起的暗电流。

3. 发明授权

US07323672B2 Light sensor structure with dark current compensation 有权
标题翻译：具有暗电流补偿的光传感器结构
公开(公告)号：US07323672B2
公开(公告)日：2008-01-29
申请号：US11174456
申请日：2005-07-06
申请人： Wenbo Liang , Yuh-Min Lin
发明人： Wenbo Liang , Yuh-Min Lin
IPC分类号： G01J1/44 , H05B37/02 , H05B39/04
CPC分类号： G01J1/44 , G01J1/4204
摘要： The ambient light sensor structure includes a power supply, a converter, and a pulse processing unit. The power supply provides a reference voltage interface, a high voltage interface and a low voltage interface. The converter includes a first current-to-pulse converter, a second current-to-pulse converter, a first light sensor and a second light sensor. The pulse processing unit comprises a signal subtraction component for circuit blocking, a counter, a digital-to-analog converter and a buffer by series connection. Without incident light, two light sensors would produce a dark current due to the material characteristics of the two photo diodes. Therefore, two current to pulse converters convert the dark current into a pulse signal and transmit the pulse signal to the signal subtraction component in order to cancel the dark current. By the method mentioned above, the dark current caused by the material characteristic of the two light sensors can be eliminated.
摘要翻译：环境光传感器结构包括电源，转换器和脉冲处理单元。电源提供参考电压接口，高压接口和低电压接口。转换器包括第一电流对脉冲转换器，第二电流对脉冲转换器，第一光传感器和第二光传感器。脉冲处理单元包括用于电路阻塞的信号减法分量，计数器，数 - 模转换器和通过串联连接的缓冲器。没有入射光，由于两个光电二极管的材料特性，两个光传感器将产生暗电流。因此，两个电流脉冲转换器将暗电流转换成脉冲信号，并将脉冲信号传输到信号减法分量，以消除暗电流。通过上述方法，可以消除由两个光传感器的材料特性引起的暗电流。

4. 发明授权

US09706610B2 Driving circuits for light emitting elements 有权
公开(公告)号：US09706610B2
公开(公告)日：2017-07-11
申请号：US13275954
申请日：2011-10-18
申请人： Sean S. Chen , Wenbo Liang
发明人： Sean S. Chen , Wenbo Liang
IPC分类号： H05B33/08
CPC分类号： H05B33/0812 , H05B33/0827 , Y02B20/343 , Y02B20/345
摘要： A circuit for driving light emitting elements, such as LEDs, includes a first transistor having a source coupled to ground through a first resistive element, and a second transistor having a gate electrically coupled to a gate of the first transistor, a source electrically coupled to ground, and a drain for electrical connection to a first group of light emitting elements. The circuit also includes circuitry to provide a predetermined voltage at the source of the first transistor, circuitry to compensate for a difference in respective gate-source voltages of the first and second transistors, and circuitry to compensate for a difference in respective drain-source voltages of the first and second transistors. In some implementations, the circuit can achieve relatively low power consumption.

5. 发明授权

US09306446B2 Fault protection and correction of line and load faults 有权
标题翻译：线路和负载故障的故障保护和校正
公开(公告)号：US09306446B2
公开(公告)日：2016-04-05
申请号：US13708741
申请日：2012-12-07
申请人： Hong Zhang , Sean Chen , Dilip Sangam , Wenbo Liang
发明人： Hong Zhang , Sean Chen , Dilip Sangam , Wenbo Liang
IPC分类号： H02M1/32 , H02M3/335 , H02H3/24 , H02H7/12 , H02M1/36
CPC分类号： H02M1/32 , H02H3/243 , H02H7/1213 , H02M1/36 , H02M3/335
摘要： A fault protection and correction circuit for the control of a power converter is disclosed. An example circuit generates a waveform that drives a switch on or off and controls the power converter. The controller circuit in addition to power factor correction (PFC) circuitry includes a first and a second shut down mode modules, both of them cause the switching to stop. The circuit includes a module for receiving fault events. When a fault occurs, the controller enters the second shut down mode. The controller stays in the second shut down mode if the required current for this mode can be provided by the outside circuitry. Otherwise, the controller enters the first shut down mode that requires less current and subsequently restarts the controller. By modifying the outside circuitry the controller can respond differently to fault events.
摘要翻译：公开了一种用于控制功率转换器的故障保护和校正电路。示例电路产生驱动开关打开或关闭并控制功率转换器的波形。除了功率因数校正（PFC）电路之外，控制器电路包括第一和第二关断模式模块，它们都导致切换停止。该电路包括用于接收故障事件的模块。当发生故障时，控制器进入第二个关闭模式。如果外部电路可以提供该模式所需的电流，则控制器保持在第二关闭模式。否则，控制器进入需要较少电流的第一关闭模式，然后重新启动控制器。通过修改外部电路，控制器可以对故障事件做出不同的响应。

6. 发明授权

US09288852B2 Driving circuits for light emitting elements 有权
标题翻译：发光元件的驱动电路
公开(公告)号：US09288852B2
公开(公告)日：2016-03-15
申请号：US13413820
申请日：2012-03-07
申请人： Sean S. Chen , Wenbo Liang
发明人： Sean S. Chen , Wenbo Liang
IPC分类号： H05B37/02 , H05B33/08
CPC分类号： H05B33/0812 , H05B33/0827 , Y02B20/343 , Y02B20/345
摘要： A circuit for driving light emitting elements, such as LEDs, includes a first transistor having a source coupled to ground through a first resistive element, and a second transistor having a gate electrically coupled to a gate of the first transistor, a source electrically coupled to ground, and a drain for electrical connection to a first group of light emitting elements. The circuit also includes circuitry to provide a predetermined voltage at the source of the first transistor, circuitry to compensate for a difference in respective gate-source voltages of the first and second transistors, and circuitry to compensate for a difference in respective drain-source voltages of the first and second transistors. In some implementations, the circuit can achieve relatively low power consumption.
摘要翻译：用于驱动诸如LED的发光元件的电路包括具有通过第一电阻元件耦合到地的源极的第一晶体管和具有电耦合到第一晶体管的栅极的栅极的第二晶体管，源极电耦合到接地和用于电连接到第一组发光元件的漏极。电路还包括在第一晶体管的源极处提供预定电压的电路，用于补偿第一和第二晶体管的各个栅极 - 源极电压的差异的电路，以及用于补偿各个漏极 - 源极电压的第一和第二晶体管。在一些实现中，电路可以实现相对低的功耗。

7. 发明申请

US20130093339A1 DRIVING CIRCUITS FOR LIGHT EMITTING ELEMENTS 有权
标题翻译：用于发光元件的驱动电路
公开(公告)号：US20130093339A1
公开(公告)日：2013-04-18
申请号：US13413820
申请日：2012-03-07
申请人： Sean S. Chen , Wenbo Liang
发明人： Sean S. Chen , Wenbo Liang
IPC分类号： H05B37/02
CPC分类号： H05B33/0812 , H05B33/0827 , Y02B20/343 , Y02B20/345
摘要： A circuit for driving light emitting elements, such as LEDs, includes .a first transistor having a source coupled to ground through a first resistive element, and a second transistor having a gate electrically coupled to a gate of the first transistor, a source electrically coupled to ground, and a drain for electrical connection to a first group of light emitting elements. The circuit also includes circuitry to provide a predetermined voltage at the source of the first transistor, circuitry to compensate for a difference in respective gate-source voltages of the first and second transistors, and circuitry to compensate for a difference in respective drain-source voltages of the first and second. transistors. In some implementations, the circuit can achieve relatively low power consumption.
摘要翻译：用于驱动诸如LED的发光元件的电路包括：具有通过第一电阻元件耦合到地的源极的第一晶体管和具有电耦合到第一晶体管的栅极的栅极的第二晶体管，源电耦合以及用于电连接到第一组发光元件的漏极。电路还包括在第一晶体管的源极处提供预定电压的电路，用于补偿第一和第二晶体管的各个栅极 - 源极电压的差异的电路，以及用于补偿各个漏 - 源电压的第一和第二。晶体管。在一些实现中，电路可以实现相对低的功耗。

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