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1. 发明申请

US20110199014A1 Dimmer Circuit for Electronic Loads 有权
标题翻译：电子负载调光电路
公开(公告)号：US20110199014A1
公开(公告)日：2011-08-18
申请号：US13023379
申请日：2011-02-08
申请人： Radu Pitigoi-Aron , Wanfeng Zhang , Jinho Choi
发明人： Radu Pitigoi-Aron , Wanfeng Zhang , Jinho Choi
IPC分类号： H05B41/16
CPC分类号： H05B33/0815 , Y02B20/383
摘要： In one embodiment, a dimmer circuit is coupled to an electronic load and receives an alternating current (AC) signal. A phase control circuit turns the dimmer circuit on for a first portion of the AC signal to turn on the electronic load. The dimmer circuit turns off during a second portion of the AC signal to turn off the electronic load. A switch is coupled to the phase control circuit. The switch is controlled to couple the phase control circuit to ground when the dimmer circuit is off where the switch is part of a power supply supplying power to the electronic load.
摘要翻译：在一个实施例中，调光电路耦合到电子负载并且接收交流（AC）信号。相位控制电路将交流信号的第一部分的调光电路导通，以接通电子负载。在交流信号的第二部分期间，调光器电路关闭以关闭电子负载。开关耦合到相位控制电路。当调光器电路断开时，开关被控制为将相位控制电路耦合到地，其中开关是向电子负载供电的电源的一部分。

2. 发明授权

US09497807B2 Dimmer circuit for electronic loads 有权
标题翻译：电子负载调光电路
公开(公告)号：US09497807B2
公开(公告)日：2016-11-15
申请号：US13023379
申请日：2011-02-08
申请人： Radu Pitigoi-Aron , Wanfeng Zhang , Jinho Choi
发明人： Radu Pitigoi-Aron , Wanfeng Zhang , Jinho Choi
IPC分类号： H05B37/02 , H05B33/08
CPC分类号： H05B33/0815 , Y02B20/383
摘要： In one embodiment, a dimmer circuit is coupled to an electronic load and receives an alternating current (AC) signal. A phase control circuit turns the dimmer circuit on for a first portion of the AC signal to turn on the electronic load. The dimmer circuit turns off during a second portion of the AC signal to turn off the electronic load. A switch is coupled to the phase control circuit. The switch is controlled to couple the phase control circuit to ground when the dimmer circuit is off where the switch is part of a power supply supplying power to the electronic load.
摘要翻译：在一个实施例中，调光电路耦合到电子负载并且接收交流（AC）信号。相位控制电路将交流信号的第一部分的调光电路导通，以接通电子负载。在交流信号的第二部分期间，调光器电路关闭以关闭电子负载。开关耦合到相位控制电路。当调光器电路断开时，开关被控制为将相位控制电路耦合到地，其中开关是向电子负载供电的电源的一部分。

3. 发明授权

US08796954B2 Dimming control for electronic lamp 有权
标题翻译：电子灯调光控制
公开(公告)号：US08796954B2
公开(公告)日：2014-08-05
申请号：US13272446
申请日：2011-10-13
申请人： Wanfeng Zhang , Radu Pitigoi-Aron , Daniel Reed
发明人： Wanfeng Zhang , Radu Pitigoi-Aron , Daniel Reed
IPC分类号： H05B37/02 , H05B39/04
CPC分类号： H05B33/0815
摘要： In one embodiment, an apparatus includes circuitry configured to receive a dimming input to control a dimming level of a lamp. Also, the apparatus includes circuitry configured to generate a control signal based on the dimming input. The control signal indicates the dimming level for a converter of the lamp and the converter is configured to interpret the control signal to control to the dimming level of the lamp using a sinusoidal signal.
摘要翻译：在一个实施例中，一种装置包括被配置为接收调光输入以控制灯的调光水平的电路。而且，该装置包括经配置以基于调光输入产生控制信号的电路。控制信号指示灯的转换器的调光电平，并且转换器被配置为使用正弦信号来解释控制信号以控制灯的调光电平。

4. 发明申请

US20110241572A1 LED CONTROLLER WITH COMPENSATION FOR DIE-TO-DIE VARIATION AND TEMPERATURE DRIFT 有权
标题翻译： LED控制器，用于校准DIE-TO-DIE变化和温度变化
公开(公告)号：US20110241572A1
公开(公告)日：2011-10-06
申请号：US13078568
申请日：2011-04-01
申请人： Wanfeng Zhang , Radu Pitigoi-Aron
发明人： Wanfeng Zhang , Radu Pitigoi-Aron
IPC分类号： H05B37/02
CPC分类号： H05B33/0851 , H05B33/0854
摘要： A system including a calibration module, a selection module, and a control module. The calibration module is configured to generate calibration data for a plurality of light emitting diodes (LEDs). The calibration data include current through the LEDs and corresponding luminosities of the LEDs. The selection module is configured to select one of a plurality of templates corresponding to the LEDs. The selected template includes at least one of temperature, current, and voltage characteristics of the LEDs. The control module is configured to determine a temperature of the LEDs and adjust current through the LEDs based on the temperature, the selected template, and the calibration data to maintain a luminosity of the LEDs at a predetermined luminosity.
摘要翻译：一种包括校准模块，选择模块和控制模块的系统。校准模块被配置为生成用于多个发光二极管（LED）的校准数据。校准数据包括通过LED的电流和LED的相应亮度。选择模块被配置为选择与LED对应的多个模板中的一个。所选择的模板包括LED的温度，电流和电压特性中的至少一个。控制模块被配置为基于温度，所选择的模板和校准数据来确定LED的温度并调节通过LED的电流，以将LED的亮度维持在预定的亮度。

5. 发明申请

US20100253395A1 TRANSISTOR Gate Driver for Short Circuit Protection 审中-公开
标题翻译：用于短路保护的晶体管栅极驱动器
公开(公告)号：US20100253395A1
公开(公告)日：2010-10-07
申请号：US12752992
申请日：2010-04-01
申请人： Radu Pitigoi-Aron , Wanfeng Zhang
发明人： Radu Pitigoi-Aron , Wanfeng Zhang
IPC分类号： H03B1/00
CPC分类号： H03K17/08122
摘要： Particular embodiments generally relate to driver structures. In one embodiment, an apparatus includes a first driver that drives a first current for a transistor. The first driver drives the first current during a first portion of a drive time of driving the transistor. The first driver is OFF during a second portion. A second driver drives a second current for the transistor during the second portion.
摘要翻译：具体实施方案通常涉及驱动器结构。在一个实施例中，一种装置包括驱动晶体管的第一电流的第一驱动器。在驱动晶体管的驱动时间的第一部分期间，第一驱动器驱动第一电流。第一个驱动程序在第二部分关闭。在第二部分期间，第二驱动器驱动晶体管的第二电流。

6. 发明授权

US08446108B2 LED controller with compensation for die-to-die variation and temperature drift 有权
标题翻译： LED控制器，具有对芯片到芯片的变化和温度漂移的补偿
公开(公告)号：US08446108B2
公开(公告)日：2013-05-21
申请号：US13078568
申请日：2011-04-01
申请人： Wanfeng Zhang , Radu Pitigoi-Aron
发明人： Wanfeng Zhang , Radu Pitigoi-Aron
IPC分类号： G05F1/00 , G06F3/038
CPC分类号： H05B33/0851 , H05B33/0854
摘要： A system including a calibration module, a selection module, and a control module. The calibration module is configured to generate calibration data for a plurality of light emitting diodes (LEDs). The calibration data include current through the LEDs and corresponding luminosities of the LEDs. The selection module is configured to select one of a plurality of templates corresponding to the LEDs. The selected template includes at least one of temperature, current, and voltage characteristics of the LEDs. The control module is configured to determine a temperature of the LEDs and adjust current through the LEDs based on the temperature, the selected template, and the calibration data to maintain a luminosity of the LEDs at a predetermined luminosity.
摘要翻译：一种包括校准模块，选择模块和控制模块的系统。校准模块被配置为生成用于多个发光二极管（LED）的校准数据。校准数据包括通过LED的电流和LED的相应亮度。选择模块被配置为选择与LED对应的多个模板中的一个。所选择的模板包括LED的温度，电流和电压特性中的至少一个。控制模块被配置为基于温度，所选择的模板和校准数据来确定LED的温度并调节通过LED的电流，以将LED的亮度维持在预定的亮度。

7. 发明申请

US20120091910A1 Dimming Control for Electronic Lamp 有权
标题翻译：电子灯调光控制
公开(公告)号：US20120091910A1
公开(公告)日：2012-04-19
申请号：US13272446
申请日：2011-10-13
申请人： Wanfeng Zhang , Radu Pitigoi-Aron , Daniel Reed
发明人： Wanfeng Zhang , Radu Pitigoi-Aron , Daniel Reed
IPC分类号： H05B37/02
CPC分类号： H05B33/0815
摘要： In one embodiment, an apparatus includes circuitry configured to receive a dimming input to control a dimming level of a lamp. Also, the apparatus includes circuitry configured to generate a control signal based on the dimming input. The control signal indicates the dimming level for a converter of the lamp and the converter is configured to interpret the control signal to control to the dimming level of the lamp using a sinusoidal signal.
摘要翻译：在一个实施例中，一种装置包括被配置为接收调光输入以控制灯的调光水平的电路。而且，该装置包括经配置以基于调光输入产生控制信号的电路。控制信号指示灯的转换器的调光电平，并且转换器被配置为使用正弦信号来解释控制信号以控制灯的调光电平。

8. 发明授权

US08896288B2 TRIAC dimmer detection 有权
标题翻译： TRIAC调光器检测
公开(公告)号：US08896288B2
公开(公告)日：2014-11-25
申请号：US13398150
申请日：2012-02-16
申请人： Jinho Choi , Hao Peng , Wanfeng Zhang , Tuyen Doan
发明人： Jinho Choi , Hao Peng , Wanfeng Zhang , Tuyen Doan
IPC分类号： G01D1/14 , H05B33/08 , H02M3/335 , H02M1/08 , H02M1/00
CPC分类号： G01R19/0084 , G01R17/02 , H02M1/082 , H02M3/33523 , H02M2001/0022 , H05B33/0854
摘要： Methods, circuits, and systems for determining the presence of a chopped input signal are disclosed. A digital signal generator can produce multiple digital signals when an alternating current (AC) signal input reaches multiple threshold voltages. The times at which the threshold voltages are reached can be determined by looking at the times at which the digital signals go high and low. The differences between the times at which the digital signals go high and low are used to determine if the AC signal input is a leading or trailing edge chopped signal. The AC input signal is a leading edge chopped signal when the difference between the times at which the digital signals go high is less than a predetermined time threshold, and is a trailing edge chopped signal when the difference between the times at which the digital signals go low is less than a predetermined time threshold.
摘要翻译：公开了用于确定斩波输入信号的存在的方法，电路和系统。当交流（AC）信号输入达到多个阈值电压时，数字信号发生器可以产生多个数字信号。达到阈值电压的时间可以通过查看数字信号变为高电平和低电平的时间来确定。使用数字信号变为高电平和低电平的时间之间的差异来确定AC信号输入是前导或后沿斩波信号。当数字信号变高的时间之间的差小于预定时间阈值时，AC输入信号是前沿斩波信号，并且当数字信号到达时间之间的差异时是后沿斩波信号低于预定时间阈值。

9. 发明授权

US08847517B2 TRIAC dimming systems for solid-state loads 有权
标题翻译：用于固态负载的TRIAC调光系统
公开(公告)号：US08847517B2
公开(公告)日：2014-09-30
申请号：US13525711
申请日：2012-06-18
申请人： Sehat Sutardja , Pantas Sutardja , Wanfeng Zhang , Jinho Choi
发明人： Sehat Sutardja , Pantas Sutardja , Wanfeng Zhang , Jinho Choi
IPC分类号： H05B37/02 , H05B33/08
CPC分类号： H05B33/0815 , H02M3/33507 , H05B33/0851
摘要： A system includes a transformer. The transformer includes a first coil and a second coil. The first coil is configured to receive a first voltage based on an output of a switching circuit. The second coil is configured to generate a first current based on the first voltage to power a solid-state load. The system also includes a third coil. The third coil is configured to generate a second voltage based on the first voltage.
摘要翻译：一个系统包括一个变压器。变压器包括第一线圈和第二线圈。第一线圈被配置为基于开关电路的输出接收第一电压。第二线圈被配置为基于第一电压产生第一电流以对固态负载供电。该系统还包括第三线圈。第三线圈被配置为基于第一电压产生第二电压。

10. 发明申请

US20120212258A1 TRIAC Dimmer Detection 有权
标题翻译： TRIAC调光器检测
公开(公告)号：US20120212258A1
公开(公告)日：2012-08-23
申请号：US13398150
申请日：2012-02-16
申请人： Jinho Choi , Hao Peng , Wanfeng Zhang , Tuyen Doan
发明人： Jinho Choi , Hao Peng , Wanfeng Zhang , Tuyen Doan
IPC分类号： H03K5/153
CPC分类号： G01R19/0084 , G01R17/02 , H02M1/082 , H02M3/33523 , H02M2001/0022 , H05B33/0854
摘要： Methods, circuits, and systems for determining the presence of a chopped input signal are disclosed. A digital signal generator can produce multiple digital signals when an alternating current (AC) signal input reaches multiple threshold voltages. The times at which the threshold voltages are reached can be determined by looking at the times at which the digital signals go high and low. The differences between the times at which the digital signals go high and low are used to determine if the AC signal input is a leading or trailing edge chopped signal. The AC input signal is a leading edge chopped signal when the difference between the times at which the digital signals go high is less than a predetermined time threshold, and is a trailing edge chopped signal when the difference between the times at which the digital signals go low is less than a predetermined time threshold.
摘要翻译：公开了用于确定斩波输入信号的存在的方法，电路和系统。当交流（AC）信号输入达到多个阈值电压时，数字信号发生器可以产生多个数字信号。达到阈值电压的时间可以通过查看数字信号变为高电平和低电平的时间来确定。使用数字信号变为高电平和低电平的时间之间的差异来确定AC信号输入是前导或后沿斩波信号。当数字信号变高的时间之间的差小于预定时间阈值时，AC输入信号是前沿斩波信号，并且当数字信号到达时间之间的差异时是后沿斩波信号低于预定时间阈值。

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