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：US08933639B2

公开(公告)日：2015-01-13

申请号：US12712257

申请日：2010-02-25

申请人： Francesco Bianco ,  Alessandro Bizzotto ,  Paolo De Anna ,  Alessandro Scordino ,  Nicola Zanforlin

发明人： Francesco Bianco ,  Alessandro Bizzotto ,  Paolo De Anna ,  Alessandro Scordino ,  Nicola Zanforlin

IPC分类号： H05B37/02 ,  D06F39/00 ,  H05B33/08

CPC分类号： D06F39/006 ,  H05B33/0815

摘要： In various embodiments, a device for dimming a light source is provided. The device may include a two-wire power supply line having interposed therein a switch for controlling transfer of the power supply towards the light source; a capacitance located downstream of the switch being traversed by a charge current as the switch is switched on; and a pre-charge stage interposed between the switch and the capacitance; the pre-charge stage being configured to limit to a given value the charge current.

摘要翻译： 在各种实施例中，提供了一种用于调光光源的装置。 该装置可以包括两线电源线，其中插入有用于控制电源朝向光源的传送的开关; 当开关接通时，位于开关下游的电容被充电电流穿过; 以及介于所述开关和所述电容之间的预充电阶段; 预充电阶段被配置为将给定值限制为充电电流。

公开(公告)号：US08415894B2

公开(公告)日：2013-04-09

申请号：US12809075

申请日：2007-12-20

申请人： Paolo De Anna ,  Michele Menegazzi ,  Oskar Schallmoser ,  Nicola Zanforlin

发明人： Paolo De Anna ,  Michele Menegazzi ,  Oskar Schallmoser ,  Nicola Zanforlin

IPC分类号： H05B41/16

CPC分类号： H05B37/0263 ,  H05B33/0818 ,  H05B33/0845

摘要： A drive arrangement for light sources may include: a connection line to feed a light source, a switch element coupled to said line to apply on/off signals to said line, and a controller to control operation of said switch, said controller being sensitive to at least one of a dimming signal representative of a desired dimming level for said light source and an information-carrying digital signal, wherein said controller is configured to control operation of said switch to: a) PWM modulate an on/off signal applied to said line as a function of said dimming signal, whereby the average current conveyed towards said light source and determined by said PWM modulated on/off signal controls the brightness of said light source, b) transmit said information-carrying digital signal as an on/off information signal applied to said line, whereby the information carried by said information-carrying digital signal is transmitted over said line.

摘要翻译： 用于光源的驱动装置可以包括：用于馈送光源的连接线，耦合到所述线的开关元件以对所述线施加开/关信号，以及控制器来控制所述开关的操作，所述控制器敏感地 代表所述光源的期望调光电平的调光信号和信息携带数字信号中的至少一个，其中所述控制器被配置为控制所述开关的操作，以：a）PWM调制施加到所述光源的开/关信号 作为所述调光信号的函数，由此朝向所述光源传送并由所述PWM调制的开/关信号确定的平均电流控制所述光源的亮度，b）将所述信息携带数字信号作为开/关 信息信号，由此由所述信息携带数字信号承载的信息通过所述线路发送。

公开(公告)号：US08319448B2

公开(公告)日：2012-11-27

申请号：US12809071

申请日：2007-12-20

申请人： Nico Cecconello ,  Paolo De Anna ,  Nicola Zanforlin

发明人： Nico Cecconello ,  Paolo De Anna ,  Nicola Zanforlin

IPC分类号： H05B41/16

CPC分类号： H05B33/0851 ,  H05B33/0815 ,  Y02B20/347

摘要： A driver arrangement for LEDs may include a PWM controller to deliver a feed voltage between an output line and a ground output line, said controller having a pin, a current regulator to regulate the feed current, a switch to connect said pin to a scaled-down version of the voltage on the first output line, and a control line to receive a signal to produce dimming, said control line coupled to said regulator and said switch to couple said regulator to a reference voltage and control switching, whereby: in one of the levels of a PWM control signal, said regulator interrupts said feed current, the voltage on said ground output line is floating, and in the other levels, said regulator is coupled to said reference voltage, said switch disconnects said pin from said voltage on the output line and the voltage on said ground output line is regulated.

摘要翻译： 用于LED的驱动器布置可以包括PWM控制器，用于在输出线和接地输出线之间传送馈电电压，所述控制器具有引脚，用于调节馈电电流的电流调节器，用于将所述引脚连接到缩放 第一输出线上的电压下降版本，以及用于接收信号以产生调光的控制线，所述控制线耦合到所述调节器和所述开关，以将所述调节器耦合到参考电压并控制切换，由此：在 PWM控制信号的电平，所述调节器中断所述馈电电流，所述接地输出线上的电压是浮置的，而在其他电平中，所述调节器耦合到所述参考电压，所述开关将所述引脚与所述引脚断开， 输出线路和所述接地输出线路上的电压被调节。

公开(公告)号：US20110006696A1

公开(公告)日：2011-01-13

申请号：US12809075

申请日：2007-12-20

申请人： Michele Menegazzi ,  Nicola Zanforlin ,  Paolo De Anna ,  Oskar Schallmoser

发明人： Michele Menegazzi ,  Nicola Zanforlin ,  Paolo De Anna ,  Oskar Schallmoser

IPC分类号： H05B37/02

CPC分类号： H05B37/0263 ,  H05B33/0818 ,  H05B33/0845

摘要： A drive arrangement for light sources may include: a connection line to feed a light source, a switch element coupled to said line to apply on/off signals to said line, and a controller to control operation of said switch, said controller being sensitive to at least one of a dimming signal representative of a desired dimming level for said light source and an information-carrying digital signal, wherein said controller is configured to control operation of said switch to: a) PWM modulate an on/off signal applied to said line as a function of said dimming signal, whereby the average current conveyed towards said light source and determined by said PWM modulated on/off signal controls the brightness of said light source, b) transmit said information-carrying digital signal as an on/off information signal applied to said line, whereby the information carried by said information-carrying digital signal is transmitted over said line.

摘要翻译： 用于光源的驱动装置可以包括：用于馈送光源的连接线，耦合到所述线的开关元件以对所述线施加开/关信号，以及控制器来控制所述开关的操作，所述控制器敏感地 代表所述光源的期望调光电平的调光信号和信息携带数字信号中的至少一个，其中所述控制器被配置为控制所述开关的操作，以：a）PWM调制施加到所述光源的开/关信号 作为所述调光信号的函数，由此朝向所述光源传送并由所述PWM调制的开/关信号确定的平均电流控制所述光源的亮度，b）将所述信息携带数字信号作为开/关 信息信号，由此由所述信息携带数字信号承载的信息通过所述线路发送。

公开(公告)号：US20110001439A1

公开(公告)日：2011-01-06

申请号：US12809071

申请日：2007-12-20

申请人： Nico Cecconello ,  Paolo De Anna ,  Nicola Zanforlin

发明人： Nico Cecconello ,  Paolo De Anna ,  Nicola Zanforlin

IPC分类号： H05B41/36

CPC分类号： H05B33/0851 ,  H05B33/0815 ,  Y02B20/347

摘要： A driver arrangement for LEDs may include a PWM controller to deliver a feed voltage between an output line and a ground output line, said controller having a pin, a current regulator to regulate the feed current, a switch to connect said pin to a scaled-down version of the voltage on the first output line, and a control line to receive a signal to produce dimming, said control line coupled to said regulator and said switch to couple said regulator to a reference voltage and control switching, whereby: in one of the levels of a PWM control signal, said regulator interrupts said feed current, the voltage on said ground output line is floating, and in the other levels, said regulator is coupled to said reference voltage, said switch disconnects said pin from said voltage on the output line and the voltage on said ground output line is regulated.

摘要翻译： 用于LED的驱动器布置可以包括PWM控制器，用于在输出线和接地输出线之间传送馈电电压，所述控制器具有引脚，用于调节馈电电流的电流调节器，用于将所述引脚连接到缩放 第一输出线上的电压下降版本，以及用于接收信号以产生调光的控制线，所述控制线耦合到所述调节器和所述开关，以将所述调节器耦合到参考电压并控制切换，由此：在 PWM控制信号的电平，所述调节器中断所述馈电电流，所述接地输出线上的电压是浮置的，而在其他电平中，所述调节器耦合到所述参考电压，所述开关将所述引脚与所述引脚断开， 输出线路和所述接地输出线路上的电压被调节。

公开(公告)号：US20100219763A1

公开(公告)日：2010-09-02

申请号：US12712257

申请日：2010-02-25

申请人： Francesco Bianco ,  Alessandro Bizzotto ,  Paolo De Anna ,  Alessandro Scordino ,  Nicola Zanforlin

发明人： Francesco Bianco ,  Alessandro Bizzotto ,  Paolo De Anna ,  Alessandro Scordino ,  Nicola Zanforlin

IPC分类号： H05B37/02

CPC分类号： D06F39/006 ,  H05B33/0815

摘要： In various embodiments, a device for dimming a light source is provided. The device may include a two-wire power supply line having interposed therein a switch for controlling transfer of said power supply towards said light source; a capacitance located downstream of said switch being traversed by a charge current as said switch is switched on; and a pre-charge stage interposed between said switch and said capacitance; said pre-charge stage being configured to limit to a given value said charge current.

摘要翻译： 在各种实施例中，提供了一种用于调光光源的装置。 该装置可以包括一个二线电源线，其中插入有用于控制朝向所述光源的所述电源的传送的开关; 当所述开关接通时，位于所述开关下游的电容被充电电流穿过; 以及置于所述开关和所述电容之间的预充电阶段; 所述预充电阶段被配置为限制给定值所述充电电流。

公开(公告)号：US20100052554A1

公开(公告)日：2010-03-04

申请号：US12520866

申请日：2006-12-21

申请人： Nicola Zanforlin

发明人： Nicola Zanforlin

IPC分类号： H05B37/02 ,  H02J3/00

CPC分类号： H05B33/0818 ,  H05B33/0815 ,  H05B33/0827 ,  Y10T307/406

摘要： A circuit arrangement for driving electrical loads such as High Flux (HF) LEDs used as lighting sources. The circuit arrangement includes: a switched power source (10) providing a voltage signal switched with a switching frequency (Fsw) and having a given amplitude (Vout), and a plurality of cells (20) connected to the switched power source (10), wherein the LED cells (20) each include an LC decoupling impedance (50) for defining the intensity of the current flowing into the LED cell (30) from the switched power source (10). The LC decoupling impedance (50) includes LC components defining a resonance frequency (Fres) such that the switching frequency (Fsw) of the switched power source (10) is about one half the resonance frequency (Fres) of the LC decoupling impedance (50), whereby the average intensity of the current flowing into the cell is kept constant irrespective of the load on the LED cell (20).

摘要翻译： 用于驱动诸如用作光源的高通量（HF）LED的电负载的电路装置。 该电路装置包括：提供以开关频率（Fsw）切换并具有给定幅度（Vout）的电压信号的开关电源（10）和连接到开关电源（10）的多个单电池（20） ，其中所述LED电池（20）各自包括LC去耦阻抗（50），用于限定从所述开关电源（10）流入所述LED电池（30）的电流的强度。 LC解耦阻抗（50）包括限定谐振频率（Fres）的LC分量，使得开关电源（10）的开关频率（Fsw）约为LC去耦阻抗的谐振频率（Fres）的一半（50） ），由此流入电池的电流的平均强度与LED电池（20）上的负载无关地保持恒定。

公开(公告)号：US07902768B2

公开(公告)日：2011-03-08

申请号：US12085375

申请日：2006-11-16

申请人： Nicola Zanforlin

发明人： Nicola Zanforlin

IPC分类号： H05B41/16

CPC分类号： H05B33/0818 ,  H05B33/0809

摘要： A driving arrangement for feeding a current generated by a high frequency generator (10) coupled with a magnetic element (11) to a plurality of LED cells (33) each including at least one LED. The arrangement includes a respective plurality of LED channels (1, 2, 3, 4; 1′, 2′, 3′, 4′) arranged in a parallel configuration and one or more coupled inductors (L12, L23, L34) the couple in pairs the channels of the plurality of LED channels (1, 2, 3, 4; 1′, 2′, 3′, 4′).

摘要翻译： 一种用于将由与磁性元件（11）耦合的高频发生器（10）产生的电流馈送到每个包括至少一个LED的多个LED电池（33）的驱动装置。 该配置包括以并联配置布置的相应多个LED通道（1,2,3,4; 1'，2'，3'，4'）和一个或多个耦合电感器（L12，L23，L34） 成对地组合多个LED通道（1,2,3,4，1'，2'，3'，4'）的通道。