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21. 发明申请

WO2011123800A2 LED CONTROLLER WITH COMPENSATION FOR DIE-TO-DIE VARIATION AND TEMPERATURE DRIFT 审中-公开
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：WO2011123800A2
公开(公告)日：2011-10-06
申请号：PCT/US2011/030971
申请日：2011-04-01
申请人： MARVELL WORLD TRADE LTD. , ZHANG, Wanfeng , PITIGOI-ARON, Radu
发明人： ZHANG, Wanfeng , PITIGOI-ARON, Radu
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。

22. 发明申请

WO2013028632A1 REGULATOR FOR LED LIGHTING COLOR MIXING 审中-公开
标题翻译： LED照明颜色混合调节器
公开(公告)号：WO2013028632A1
公开(公告)日：2013-02-28
申请号：PCT/US2012/051610
申请日：2012-08-20
申请人： MARVELL SEMICONDUCTOR, INC. , SUTARDJA, Sehat , SUTARDJA, Pantas , ZHANG, Wanfeng
发明人： SUTARDJA, Sehat , SUTARDJA, Pantas , ZHANG, Wanfeng
IPC分类号： H05B33/08
CPC分类号： H05B33/0815 , H05B33/0857 , Y02B20/347
摘要： A system includes a first light emitting diode configured to produce light of a first color and a second light emitting diode configured to produce light of a second color. A constant current circuit is configured to provide a first current, wherein (i) the first current is approximately constant, (ii) a first portion of the first current flows through the second light emitting diode, and (iii) a remaining portion of the first current flows through the first light emitting diode. A current regulating circuit is configured to control the first portion of the first current flowing through the second light emitting diode. The current regulating circuit is connected in series with the second light emitting diode, the constant current circuit, and a reference potential. The first light emitting diode is connected in series directly between the constant current circuit and the reference potential.
摘要翻译：一种系统包括被配置为产生第一颜色的光的第一发光二极管和被配置为产生第二颜色的光的第二发光二极管。恒流电路被配置为提供第一电流，其中（i）第一电流近似恒定，（ii）第一电流的第一部分流过第二发光二极管，以及（iii）剩余部分第一电流流过第一发光二极管。电流调节电路被配置为控制流过第二发光二极管的第一电流的第一部分。电流调节电路与第二发光二极管，恒流电路和参考电位串联。第一个发光二极管直接连接在恒流电路和参考电位之间。

23. 发明申请

WO2014066048A1 TEMPERATURE FOLDBACK CIRCUIT FOR LED LOAD CONTROL BY CONSTANT CURRENT SOURCE 审中-公开
标题翻译：用于通过恒定电流源进行LED负载控制的温度回充电路
公开(公告)号：WO2014066048A1
公开(公告)日：2014-05-01
申请号：PCT/US2013/064178
申请日：2013-10-09
申请人： MARVELL WORLD TRADE LTD.
发明人： ZHANG, Wanfeng
IPC分类号： H05B37/02
CPC分类号： H05B33/0815 , H05B33/0824 , H05B33/0848 , Y02B20/347
摘要： An apparatus includes an input node, a light-emitting diode (LED) string to receive a current from the input node, a voltage divider to output a control voltage, and a switch to receive the control voltage. The switch coupled to the LED string controls the current through the LED string according to the control voltage.
摘要翻译：一种装置包括输入节点，用于从输入节点接收电流的发光二极管（LED）串，输出控制电压的分压器和接收控制电压的开关。耦合到LED串的开关根据控制电压来控制通过LED串的电流。

24. 发明申请

WO2014182857A1 MULTI-STRING DIMMABLE LED DRIVER 审中-公开
标题翻译：多功能二极管LED驱动器
公开(公告)号：WO2014182857A1
公开(公告)日：2014-11-13
申请号：PCT/US2014/037215
申请日：2014-05-07
申请人： MARVELL WORLD TRADE LTD.
发明人： ZHANG, Wanfeng , SUTARDJA, Pantas
IPC分类号： H05B37/02 , H05B33/08
CPC分类号： H05B33/0827
摘要： An apparatus includes a first LED driver configured to control a first string of LEDs, a second LED driver configured to control a second string of LEDs, a third LED driver configured to control a third string of LEDs, and a control circuit configured to receive a control signal and to control the first, second, and third LED drivers so that the first, second, and third strings of LEDs cooperate in producing light according to the control signal and a color curve.
摘要翻译：一种装置包括配置成控制LED的第一串的第一LED驱动器，被配置为控制第二串LED的第二LED驱动器，被配置为控制第三串LED的第三LED驱动器，以及被配置为接收控制信号并且控制第一，第二和第三LED驱动器，使得第一，第二和第三串LED根据控制信号和颜色曲线合作产生光。

25. 发明授权

EP2514272B1 INTEGRATED BUCK POWER SUPPLY ARCHITECTURES FOR LED-BASED DISPLAYS 有权
标题翻译：基于LED的显示器的集成降压电源架构
公开(公告)号：EP2514272B1
公开(公告)日：2017-11-29
申请号：EP10801034.9
申请日：2010-12-15
申请人： Marvell World Trade Ltd.
发明人： ZHANG, Wanfeng , WU, Albert
IPC分类号： H05B33/08
CPC分类号： H01L27/156 , H01L2224/48091 , H01L2224/48227 , H05B33/0806 , Y02B20/342 , H01L2924/00014

26. 发明公开

EP2564670A1 SYSTEM AND METHOD OF TUNING CURRENT FOR LEDS 审中-公开
标题翻译：动力调节系统和方法LEDS
公开(公告)号：EP2564670A1
公开(公告)日：2013-03-06
申请号：EP11775705.4
申请日：2011-05-02
申请人： Marvell World Trade Ltd.
发明人： ZHANG, Wanfeng , SUTARDJA, Pantas
IPC分类号： H05B33/08
CPC分类号： H05B33/0845 , H05B33/086 , H05B37/0263
摘要： An apparatus includes a LED and a regulator circuit. The regulator circuit controls the current provided to the LED according to a calibration signal that is coupled to the current. The regulator circuit adjusts the output of the LED when the calibration signal is adjusted. In this manner, the LED may be calibrated to generate light at a desired brightness level and color level.

27. 发明授权

EP2534928B1 DIMMER CIRCUIT FOR ELECTRONIC LOADS 有权
标题翻译： SHOCKS电路电负荷
公开(公告)号：EP2534928B1
公开(公告)日：2017-04-12
申请号：EP11742694.0
申请日：2011-02-08
申请人： Marvell World Trade Ltd.
发明人： PITIGOI-ARON, Radu , ZHANG, Wanfeng , CHOI, Jinho
IPC分类号： H05B37/00 , H05B33/08
CPC分类号： H05B33/0815 , Y02B20/383

28. 发明公开

EP2959567A2 REDUCED NOISE POWER CONVERTER USING NOVEL SHIELD 审中-公开
标题翻译： GERÄUSCHREDUZIERTERSTRMWANDLER MIT NEUARTIGER ABSCHIRMUNG
公开(公告)号：EP2959567A2
公开(公告)日：2015-12-30
申请号：EP14706455.4
申请日：2014-02-11
申请人： Marvell World Trade Ltd.
发明人： CHOI, Jinho , DOAN, Tuyen , NG, Yee-Huan , ZHANG, Wanfeng
IPC分类号： H02M1/44 , H02M3/158 , H02M1/14 , H02M1/00
CPC分类号： H02M1/44 , H02M1/14 , H02M3/1582 , H02M2001/0064 , H05B33/0815
摘要： Power converters that produce less noise are disclosed. For example, in an embodiment, power converter can include a first inductor magnetically coupled to a second inductor, wherein a first end of the second inductor is electrically open and a second end of the second inductor is electrically coupled to ground via a second capacitor, a transistor electrically connected to the first inductor, and control circuitry to control switching of the transistor, wherein when the transistor is repeatedly switched on and off by the control circuitry, a current loop is formed through the transistor, the second capacitor, the first inductor and the second inductor, the current loop causing a reduced amount of switching noise to be generated by the power converter.
摘要翻译：公开了产生较少噪声的功率转换器。例如，在一个实施例中，功率转换器可以包括磁耦合到第二电感器的第一电感器，其中第二电感器的第一端电气打开，并且第二电感器的第二端经由第二电容器电耦合到地，电连接到第一电感器的晶体管以及用于控制晶体管开关的控制电路，其中当晶体管被控制电路反复接通和断开时，通过晶体管，第二电容器，第一电感器形成电流回路和第二电感器，电流回路导致由功率转换器产生的开关噪声量减少。

29. 发明授权

EP2554017B1 LED CONTROLLER WITH COMPENSATION FOR DIE-TO-DIE VARIATION AND TEMPERATURE DRIFT 有权
标题翻译：随着芯片的芯片变化和温度漂移补偿LED控制
公开(公告)号：EP2554017B1
公开(公告)日：2014-01-15
申请号：EP11715632.3
申请日：2011-04-01
申请人： Marvell World Trade Ltd.
发明人： ZHANG, Wanfeng , PITIGOI-ARON, Radu
IPC分类号： H05B33/08
CPC分类号： H05B33/0851 , H05B33/0854

30. 发明公开

EP2327001A1 INTELLIGENT SWITCHING CONTROLLER AND POWER CONVERSION CIRCUITS AND METHODS 审中-公开
标题翻译：智能手表SCHALTKONTROLLGERÄTSOWIE LEISTUNGSUMWANDLUNGSSCHALTKREISE UNDERVERHRENDAFÜR
公开(公告)号：EP2327001A1
公开(公告)日：2011-06-01
申请号：EP09813579.1
申请日：2009-09-10
申请人： Marvell World Trade Ltd.
发明人： ZHANG, Wanfeng , LIN, Jianqing , DAI, Shaoan
IPC分类号： G05F1/00
CPC分类号： G05F1/565 , H02M3/156 , H02M2001/0009 , H05B33/0815 , Y02B20/346
摘要： In one embodiment, the present invention includes a circuit having a voltage estimation circuit to receive a first voltage and generate an estimation of an output voltage of a power conversion circuit based on the first voltage. The first voltage is from a circuit node between a first terminal of a switch and a first terminal of an inductor. The circuit further comprises a current estimation circuit to receive a first current and generate an estimation of an output current of the power conversion circuit based on the first current. The first current is a current through the switch. The circuit further includes a pulse width modulation circuit to produce a pulse width modulated signal based on the estimation of an output voltage and the estimation of an output current.
摘要翻译：在一个实施例中，本发明包括具有电压估计电路的电路，用于接收第一电压并基于第一电压产生功率转换电路的输出电压的估计。第一电压来自开关的第一端子和电感器的第一端子之间的电路节点。该电路还包括电流估计电路，用于接收第一电流并且基于第一电流产生功率转换电路的输出电流的估计。第一个电流是通过开关的电流。电路还包括脉冲宽度调制电路，用于基于输出电压的估计和输出电流的估计来产生脉宽调制信号。

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