公开(公告)号：US07994727B2

公开(公告)日：2011-08-09

申请号：US12085314

申请日：2006-11-16

申请人： Paolo De Anna ,  Alberto Ferro ,  Nicola Zanforlin

发明人： Paolo De Anna ,  Alberto Ferro ,  Nicola Zanforlin

IPC分类号： H05B37/02

CPC分类号： H05B33/0851 ,  H05B33/0815 ,  Y02B20/346 ,  Y02B20/348

摘要： A circuit for driving LEDs includes: —a transformer with a secondary winding for driving the LEDs and a primary winding, —a half-bridge arrangement fed with an input voltage and coupled to the transformer, —a resonant circuit between the half-bridge arrangement and the primary winding of the transformer, the resonant circuit having a given resonance frequency, and—a controller configured for switching the half-bridge arrangement with a switching frequency variable between first and second values. The second value is closer than the first value to the resonance frequency of the resonant circuit created between the half-bridge arrangement and the primary winding of the transformer. This boosts the voltage fed towards the LEDs via the transformer. The LEDs are preferably included in the form of series of LEDs connected to the secondary winding of the transformer via a rectifier placed outside the housing of the power-supply.

摘要翻译： 用于驱动LED的电路包括： - 具有用于驱动LED的次级绕组和初级绕组的变压器，馈送有输入电压并耦合到变压器的半桥装置， - 半桥装置之间的谐振电路 和所述变压器的初级绕组，所述谐振电路具有给定的谐振频率;以及 - 控制器，被配置为用第一和第二值之间的开关频率变量来切换所述半桥装置。 第二值比在变压器的半桥布置和初级绕组之间产生的谐振电路的谐振频率的第一值更接近。 这提高了通过变压器向LED馈送的电压。 优选地，LED通过放置在电源的壳体外部的整流器以连接到变压器的次级绕组的一系列LED的形式包括。

公开(公告)号：US20090273301A1

公开(公告)日：2009-11-05

申请号：US12085314

申请日：2006-11-16

申请人： Paolo De Anna ,  Alberto Ferro ,  Nicola Zanforlin

发明人： Paolo De Anna ,  Alberto Ferro ,  Nicola Zanforlin

IPC分类号： H05B41/36

CPC分类号： H05B33/0851 ,  H05B33/0815 ,  Y02B20/346 ,  Y02B20/348

摘要： A circuit for driving LEDs includes:—transformer with a secondary winding for driving the LEDs and a primary winding,—a half-bridge arrangement fed with an input voltage and coupled to the transformer,—a resonant circuit between the half-bridge arrangement and the primary winding of the transformer, the resonant circuit having a given resonance frequency, and—a controller configured for switching the half-bridge arrangement with a switching frequency variable between first and second values. The second value is closer than the first value to the resonance frequency of the resonant circuit created between the half-bridge arrangement and the primary winding of the transformer. This boosts the voltage fed towards the LEDs via the transformer. The LEDs are preferably included in the form of series of LEDs connected to the secondary winding of the transformer via a rectifier placed outside the housing of the power-supply.

摘要翻译： 用于驱动LED的电路包括：具有用于驱动LED的次级绕组和初级绕组的变压器， - 馈送有输入电压并耦合到变压器的半桥装置， - 半桥布置和 所述变压器的初级绕组，所述谐振电路具有给定的谐振频率;以及控制器，被配置为用第一和第二值之间的开关频率变量来切换所述半桥装置。 第二值比在变压器的半桥布置和初级绕组之间产生的谐振电路的谐振频率的第一值更接近。 这提高了通过变压器向LED馈送的电压。 优选地，LED通过放置在电源的壳体外部的整流器以连接到变压器的次级绕组的一系列LED的形式包括。

公开(公告)号：US20090079493A1

公开(公告)日：2009-03-26

申请号：US12226501

申请日：2007-06-04

申请人： Alberto Ferro

发明人： Alberto Ferro

IPC分类号： H01L35/00

CPC分类号： G05F3/225

摘要： A current generator arrangement for use, e.g., in 1-10V interfaces for lighting systems, includes at least one transistor (Q3) having a base-emitter junction wherein the voltage drop across the base-emitter junction defines the intensity of the output current and wherein the base-emitter junction is exposed to temperature drift. A resistive network (Req2) is coupled to the transistor (Q3), whereby the intensity of the output current is a function of both the voltage drop across the base-emitter junction of the transistor (Q3) and the resistance value of the resistive network (Req2). The resistive network (Req2) includes at least one resistor element (NTC3; NTC4) whose resistance value varies with temperature to keep constant the intensity of the output current irrespective of any temperature drift in the voltage drop across the base-emitter junction of the transistor (Q3).

摘要翻译： 用于照明系统的1-10V接口中使用的电流发生器装置包括至少一个具有基极 - 发射极结的晶体管（Q3），其中基极 - 发射极结两端的电压降定义了输出电流的强度， 其中基极 - 发射极结暴露于温度漂移。 电阻网络（Req2）耦合到晶体管（Q3），由此输出电流的强度是晶体管（Q3）的基极 - 发射极结两端的电压降与电阻网络的电阻值 （Req2）。 电阻网络（Req2）包括电阻值随温度变化的至少一个电阻器元件（NTC3; NTC4），以保持恒定的输出电流的强度，而与晶体管的基极 - 发射极结两端的电压降中的任何温度漂移无关 （Q3）。

公开(公告)号：US20100060192A1

公开(公告)日：2010-03-11

申请号：US12513477

申请日：2006-11-03

申请人： Alberto Ferro

发明人： Alberto Ferro

IPC分类号： H05B37/02

CPC分类号： H05B33/0818 ,  Y02B20/347

摘要： A circuit for supplying a light source (L) such as a high flux (HF) LED with Pulse Width Modulation (PWM) dimming capability includes: a rectifier (10) for receiving an input bipolar PWM modulated signal (v) representative of a desired dimming level for the light source (L) and produce therefrom a rectified signal; a current regulator (14) to receive the rectified signal and produce therefrom a supply current for the light source (L); and a control module (16) sensitive to the input bipolar PWM modulated signal (v) to control the current regulator (14) to produce a PWM modulated supply current for the light source (L); and a capacitor (18) arranged between the rectifier (10) and the current regulator (14) to stabilize the rectified signal. The circuit typically includes ancillary circuitry (12), such as a microcontroller, connected to the capacitor to be supplied with the rectified signal as stabilized by the capacitor (18). The ancillary circuitry (12) is thus supplied irrespective of the dimming level associated with the input bipolar PWM modulated signal.

摘要翻译： 一种用于向诸如高通量（HF）LED的光源（L）提供脉冲宽度调制（PWM）调光能力的电路包括：整流器（10），用于接收代表期望的输入双极性PWM调制信号（v） 用于光源（L）的调光电平并从其产生整流信号; 电流调节器（14），用于接收整流信号并由此产生用于光源（L）的电源电流; 以及对输入双极性PWM调制信号（v）敏感的控制模块（16），以控制电流调节器（14）产生用于光源（L）的PWM调制的供电电流; 以及布置在整流器（10）和电流调节器（14）之间以稳定整流信号的电容器（18）。 电路通常包括连接到电容器的辅助电路（12），例如微控制器，以供给由电容器（18）稳定的整流信号。 因此，不管与输入双极性PWM调制信号相关联的调光电平如何，辅助电路（12）被提供。

公开(公告)号：US20090184665A1

公开(公告)日：2009-07-23

申请号：US12226886

申请日：2007-06-04

申请人： Alberto Ferro

发明人： Alberto Ferro

IPC分类号： H05B37/02

CPC分类号： H05B33/0851 ,  H05B33/0818 ,  Y02B20/347

摘要： A LED driver arrangement includes a switching-mode stage (12) to produce a drive current for feeding one or more LEDs (L) from a DC input (10) and a current sensor (18) sensitive to the current fed to the LEDs (L) for producing a feedback signal indicative of the intensity of the drive current fed thereto. The feedback signal is compared with a reference value indicative (20, 22) of a LED current as requested by a user, in order to generate a control signal (32) able to drive control circuitry (26, 28, 30) in order to obtain such LED current. Control circuitry (26, 28, 30) sensitive to the control signal (32) controls the switching-mode stage (12) so that the drive current fed to the LEDs (L) corresponds to the LED current as requested by the user. An opto-coupler (34) is provided to feed the control signal (32) to the controller circuitry (26, 28, 30). The opto-coupler (34) is configured to saturate when the drive current fed to the LEDs (L) reaches a minimum level. An auxiliary supply voltage (Vaux1) for the control circuitry (26, 28, 30) is derived from an auxiliary winding of a magnetic device of the switching-mode stage (12). The auxiliary supply voltage (Vaux1) is kept above a minimum level by the opto-coupler (34) and the associated biasing circuitry (341, 342), when such opto-coupler (34) is saturated, thus keeping the control circuitry on.

摘要翻译： LED驱动器装置包括切换模式级（12），以产生用于从DC输入端（10）馈送一个或多个LED（L）的驱动电流和对馈送到LED的电流敏感的电流传感器（18） L），用于产生指示馈送到其的驱动电流的强度的反馈信号。 将反馈信号与指示用户所要求的LED电流（20,22）的参考值进行比较，以便产生能够驱动控制电路（26,28,30）的控制信号（32），以便 获得这样的LED电流。 对控制信号（32）敏感的控制电路（26,28,30）控制开关模式级（12），使得馈送到LED（L）的驱动电流对应于用户所要求的LED电流。 提供光耦合器（34）以将控制信号（32）馈送到控制器电路（26,28,30）。 光耦合器（34）被配置为当馈送到LED（L）的驱动电流达到最小电平时饱和。 用于控制电路（26,28,30）的辅助电源电压（Vaux1）源自开关模式级（12）的磁性装置的辅助绕组。 当这种光耦合器（34）饱和时，辅助电源电压（Vaux1）由光耦合器（34）和相关的偏置电路（341,342）保持在最小电平以下，从而保持控制电路的导通。

公开(公告)号：US08154212B2

公开(公告)日：2012-04-10

申请号：US12513477

申请日：2006-11-03

申请人： Alberto Ferro

发明人： Alberto Ferro

IPC分类号： H05B41/36

CPC分类号： H05B33/0818 ,  Y02B20/347

摘要： A circuit for supplying a light source (L) such as a high flux (HF) LED with Pulse Width Modulation (PWM) dimming capability includes: a rectifier (10) for receiving an input bipolar PWM modulated signal (v) representative of a desired dimming level for the light source (L) and produce therefrom a rectified signal; a current regulator (14) to receive the rectified signal and produce therefrom a supply current for the light source (L); and a control module (16) sensitive to the input bipolar PWM modulated signal (v) to control the current regulator (14) to produce a PWM modulated supply current for the light source (L); and a capacitor (18) arranged between the rectifier (10) and the current regulator (14) to stabilize the rectified signal. The circuit typically includes ancillary circuitry (12), such as a microcontroller, connected to the capacitor to be supplied with the rectified signal as stabilized by the capacitor (18). The ancillary circuitry (12) is thus supplied irrespective of the dimming level associated with the input bipolar PWM modulated signal.

摘要翻译： 一种用于向诸如高通量（HF）LED的光源（L）提供脉冲宽度调制（PWM）调光能力的电路包括：整流器（10），用于接收代表期望的输入双极性PWM调制信号（v） 用于光源（L）的调光电平并从其产生整流信号; 电流调节器（14），用于接收整流信号并由此产生用于光源（L）的电源电流; 以及对输入双极性PWM调制信号（v）敏感的控制模块（16），以控制电流调节器（14）产生用于光源（L）的PWM调制的供电电流; 以及布置在整流器（10）和电流调节器（14）之间以稳定整流信号的电容器（18）。 电路通常包括连接到电容器的辅助电路（12），例如微控制器，以供给由电容器（18）稳定的整流信号。 因此，不管与输入双极性PWM调制信号相关联的调光电平如何，辅助电路（12）被提供。

公开(公告)号：US07800430B2

公开(公告)日：2010-09-21

申请号：US12226501

申请日：2007-06-04

申请人： Alberto Ferro

发明人： Alberto Ferro

IPC分类号： H01L35/00

CPC分类号： G05F3/225

摘要： A current generator arrangement for use, e.g., in 1-10V interfaces for lighting systems, includes at least one transistor (Q3) having a base-emitter junction wherein the voltage drop across the base-emitter junction defines the intensity of the output current and wherein the base-emitter junction is exposed to temperature drift. A resistive network (Req2) is coupled to the transistor (Q3), whereby the intensity of the output current is a function of both the voltage drop across the base-emitter junction of the transistor (Q3) and the resistance value of the resistive network (Req2). The resistive network (Req2) includes at least one resistor element (NTC3; NTC4) whose resistance value varies with temperature to keep constant the intensity of the output current irrespective of any temperature drift in the voltage drop across the base-emitter junction of the transistor (Q3).

摘要翻译： 用于照明系统的1-10V接口中使用的电流发生器装置包括至少一个具有基极 - 发射极结的晶体管（Q3），其中基极 - 发射极结两端的电压降定义了输出电流的强度， 其中基极 - 发射极结暴露于温度漂移。 电阻网络（Req2）耦合到晶体管（Q3），由此输出电流的强度是晶体管（Q3）的基极 - 发射极结两端的电压降与电阻网络的电阻值 （Req2）。 电阻网络（Req2）包括至少一个电阻值（NTC3; NTC4），其电阻值随着温度而变化，以保持恒定的输出电流的强度，而与晶体管的基极 - 发射极结两端的压降中的任何温度漂移无关 （Q3）。

公开(公告)号：US5120530A

公开(公告)日：1992-06-09

申请号：US483479

申请日：1990-02-22

申请人： Alberto Ferro ,  Jurgen Gerhards ,  Roland Werner

发明人： Alberto Ferro ,  Jurgen Gerhards ,  Roland Werner

IPC分类号： A61K8/00 ,  A61K20060101 ,  A61K8/34 ,  A61K8/49 ,  A61K31/535 ,  A61P31/04 ,  A61P31/10 ,  A61Q3/02

CPC分类号： A61K8/49 ,  A61Q3/02

摘要： An antimycotically-active nail varnish, which contains an antimycotically-active substance selected from 4-[3-[p-(.alpha.,.alpha.-dimethyl-benzyl)-phenyl]-2-methyl-propyl]-2,6-dimethylmorpholine, 4-[-[p-(1,1,-dimethylpropyl)-phenyl]-2-methyl-propyl]-2,6-dimethyl-morpholine and salts thereof and a water-insoluble film former which a copolymerizate of acrylic acid esters and methacrylic acid esters having a low content of quaternary ammonium groups, is described.

摘要翻译： 一种抗真菌活性指甲油，其含有选自4- [3- [对 - （α，α-二甲基 - 苄基） - 苯基] -2-甲基 - 丙基] -2,6-二甲基吗啉的抗真菌活性物质， 4 - [ - [对 - （1,1'-二甲基丙基） - 苯基] -2-甲基 - 丙基] -2,6-二甲基吗啉及其盐和丙烯酸共聚的水不溶性成膜剂 描述了具有低含量季铵基团的酯和甲基丙烯酸酯。

公开(公告)号：US08143810B2

公开(公告)日：2012-03-27

申请号：US12226886

申请日：2007-06-04

申请人： Alberto Ferro

发明人： Alberto Ferro

IPC分类号： H05B37/02

CPC分类号： H05B33/0851 ,  H05B33/0818 ,  Y02B20/347

摘要： A LED driver arrangement including a switching-mode stage to produce a drive current for feeding a LED from a DC input; a current sensor for the current fed to the LED for producing a feedback signal; error amplifier circuitry for generating a control signal from the feedback signal; and control circuitry sensitive to the control signal to control the switching-mode stage so that the drive current fed by the switching-mode stage to the LED corresponds to the LED current. An opto-coupler feeds the control signal to the control circuitry, and the opto-coupler having associated biasing circuitry to increase current on the opto-coupler when the LED current decreases. The opto-coupler is configured to saturate when the drive current reaches a minimum level. There is also an auxiliary supply voltage for the control circuitry to keep the auxiliary supply voltage above a minimum level when the opto-coupler is saturated.

摘要翻译： 一种LED驱动器装置，包括切换模式级，以产生用于从DC输入馈送LED的驱动电流; 电流传感器，用于馈送到LED的电流以产生反馈信号; 误差放大器电路，用于从所述反馈信号产生控制信号; 以及对控制信号敏感的控制电路以控制开关模式级，使得由开关模式级馈送到LED的驱动电流对应于LED电流。 光耦合器将控制信号馈送到控制电路，并且光耦合器具有相关联的偏置电路，以在LED电流降低时增加光耦合器上的电流。 光耦合器配置为在驱动电流达到最小电平时饱和。 当光耦合器饱和时，还有用于控制电路的辅助电源电压以将辅助电源电压保持在最小电平以上。

公开(公告)号：US4882164A

公开(公告)日：1989-11-21

申请号：US144997

申请日：1988-01-19

申请人： Alberto Ferro ,  Hans Steffen

发明人： Alberto Ferro ,  Hans Steffen

IPC分类号： A61K31/575 ,  A61K9/10 ,  A61K9/107 ,  A61K45/00 ,  A61P29/00

CPC分类号： A61K9/1075 ,  Y10S436/829 ,  Y10T428/2984

摘要： Aqueous mixed micelle solutions comprising cholanic acid salts and lipids used for the solubilization of non-steroidal anti-inflammatories and for the preparation of locally tolerable pharmaceutical administration forms for such medicaments, are described.

摘要翻译： 描述了包含用于溶解非甾体抗炎剂的胆碱酸盐和脂质以及用于制备用于这种药物的局部耐受的药物给药形式的水性混合胶束溶液。