公开(公告)号：US06879497B2

公开(公告)日：2005-04-12

申请号：US09932385

申请日：2001-08-17

申请人： Guichao Hua ,  Ning Zhai

发明人： Guichao Hua ,  Ning Zhai

IPC分类号： H01R13/66 ,  H01R31/06 ,  H02M3/335

CPC分类号： H02M3/33561 ,  H01R13/6675 ,  H01R31/065

摘要： The multiple output power adapter includes an AC input receptacle which plugs into an AC power socket. The AC input receptacle is connected to an input of a single output power converter which converts the input AC voltage into an output DC voltage of a specified level. Connected to the output terminal of the single output power converter is a DC-DC module converter which converts the output DC voltage into multiple output DC voltages. Additionally, the multiple output power adapter includes an output wire connected to the output terminal of the single output power adapter in parallel with the DC-DC module converter. The output wire and the output terminal of the DC-DC module converter are both then connected to an electrical component connector. With this structure, DC power can be supplied to an electronic device at a voltage level output by the single output power converter and/or at multiple voltage levels output by the DC-DC module converter.

摘要翻译： 多输出电源适配器包括插入AC电源插座的AC输入插座。 交流输入插座连接到单输出​​功率转换器的输入端，将输入交流电压转换成指定电平的输出直流电压。 连接到单输出​​功率转换器的输出端子是将输出直流电压转换为多个输出直流电压的DC-DC模块转换器。 此外，多输出电源适配器包括与DC-DC模块转换器并联连接到单输出​​电源适配器的输出端的输出线。 DC-DC模块转换器的输出线和输出端都连接到电气元件连接器。 利用这种结构，可以以单个输出功率转换器输出的电压电平和/或由DC-DC模块转换器输出的多个电压电平向电子设备提供直流电力。

公开(公告)号：US08867250B2

公开(公告)日：2014-10-21

申请号：US12340671

申请日：2008-12-20

申请人： Guichao Hua

发明人： Guichao Hua

IPC分类号： H02M1/088 ,  H02M3/156 ,  H02M3/335 ,  H02M1/096 ,  H02M1/00

CPC分类号： H02M3/156 ,  H02M3/33507 ,  H02M2001/007

摘要： A power adapter, including an AC input terminal, an AC-DC power converter, a DC-DC power converter, and an output terminal, wherein the AC-DC power converter and the DC-DC power converter are separate components, and wherein the power AC input terminal, AC-DC power converter, DC-DC power converter and the output terminal are connected sequentially via a plurality of cords.

摘要翻译： 一种电力适配器，包括AC输入端子，AC-DC电力转换器，DC-DC电力转换器和输出端子，其中AC-DC电力转换器和DC-DC电力转换器是分离的部件，并且其中 电源交流输入端子，AC-DC电力转换器，DC-DC电力转换器和输出端子通过多根电源顺序连接。

公开(公告)号：US08866409B2

公开(公告)日：2014-10-21

申请号：US13700352

申请日：2010-11-10

申请人： Liang'an Ge ,  Xiaoli Yao ,  Guichao Hua ,  Lijun Ren

发明人： Liang'an Ge ,  Xiaoli Yao ,  Guichao Hua ,  Lijun Ren

IPC分类号： G05F1/00

CPC分类号： G05F1/10 ,  H05B33/0815 ,  H05B33/0827 ,  H05B37/02 ,  Y02B20/347

摘要： A constant-current Light Emitting Diode (LED) driver circuit is provided, and the circuit includes: an output voltage adjustable circuit and at least one path of LED load, wherein the output voltage adjustable circuit comprises: a switch converting main circuit, an output characteristic parameter sampling circuit, and an output voltage controller. The output voltage controller is used to adjust the output voltage of the switch converting main circuit according to the variation relationship between the sampling signal output by the output characteristic parameter sampling circuit and the output voltage, determine the adjustive direction of the output voltage magnitude of the switch converting main circuit according to the change of the sampling signal, adjust the magnitude of the output voltage of the switch converting main circuit according to the preset step, and finally make the output voltage equal to the voltage of one path of LED load with the highest voltage or the difference between the output voltage and the voltage of one path of LED load voltage with the highest voltage within the predetermined range. The present solution implements reducing the connection complexity and power dissipation on the base of controlling the multi-path constant-current LED.

摘要翻译： 提供恒流发光二极管（LED）驱动器电路，该电路包括：输出电压可调节电路和至少一个LED负载路径，其中输出电压可调电路包括：开关转换主电路，输出 特征参数采样电路和输出电压控制器。 输出电压控制器用于根据输出特性参数采样电路输出的采样信号与输出电压之间的变化关系来调节开关转换主电路的输出电压，确定输出电压幅度的调整方向 根据采样信号的变化开关转换主电路，根据预设步骤调整开关转换主电路的输出电压幅值，最后使输出电压等于LED负载的一路径电压 最高电压或输出电压与LED负载电压的一个路径的电压之间的差异，具有在预定范围内的最高电压。 本解决方案在控制多路恒流LED的基础上降低了连接复杂性和功耗。

公开(公告)号：US08674621B2

公开(公告)日：2014-03-18

申请号：US12896445

申请日：2010-10-01

申请人： Liangan Ge ,  Guichao Hua ,  Xiaoli Yao ,  Xinke Wu

发明人： Liangan Ge ,  Guichao Hua ,  Xiaoli Yao ,  Xinke Wu

IPC分类号： H05B37/02 ,  H05B41/36

CPC分类号： H05B33/0812 ,  H05B33/0824 ,  Y02B20/345

摘要： A constant current control circuit with multiple outputs for a LED driver, the circuit including a single-output constant current power supply, and multiple output circuits, each output circuit comprising a current sharing circuit, a current sharing control circuit and a LED load. The LED load and the current sharing circuit are in series and form a series loop with a first terminal and a second terminal of the series loop connected to a first output terminal and a second output terminal of the constant current power supply.

摘要翻译： 一种用于LED驱动器的多个输出的恒定电流控制电路，包括单输出恒流电源的电路和多个输出电路，每个输出电路包括电流共享电路，电流共享控制电路和LED负载。 LED负载和电流共享电路串联并形成串联回路，其中串联回路的第一端子和第二端子连接到恒流电源的第一输出端子和第二输出端子。

公开(公告)号：US20130271032A1

公开(公告)日：2013-10-17

申请号：US13994280

申请日：2011-08-23

申请人： Guichao Hua ,  Liang'an Ge ,  Hangdong Yu

发明人： Guichao Hua ,  Liang'an Ge ,  Hangdong Yu

IPC分类号： H05B33/08

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

摘要： A device and system for load driving. The device includes: an electric energy supplying unit including at least two units with output voltage adjustable; a sampling unit, with the input thereof connected to either end of a load unit for sampling the current of that end and sending the sampled current to an output voltage controller; the output voltage controller, with the input thereof connected to the output of the sampling unit for outputting voltage control signal to each unit with output voltage adjustable, according to the sampled current, so as to control the difference between the output voltage of each unit with output voltage adjustable and the maximum load voltage in a load branch to be not greater than a preset difference threshold, with the difference threshold being greater than or equal to zero. The device and system for load driving can improve the reliability of the driving device and can reduce the complexity of the circuit.

摘要翻译： 一种用于负载驱动的装置和系统。 该装置包括：电能供给单元，其包括至少两个具有输出电压可调节的单元; 采样单元，其输入连接到负载单元的任一端，用于对该端的电流进行采样，并将采样的电流发送到输出电压控制器; 输出电压控制器，其输入端连接到采样单元的输出端，用于根据采样电流向每个单元输出电压控制信号，输出电压可调，以便控制每个单元的输出电压与 输出电压可调，并且负载分支中的最大负载电压不大于预设差值阈值，差值阈值大于或等于零。 用于负载驱动的装置和系统可以提高驱动装置的可靠性，并且可以降低电路的复杂性。

公开(公告)号：US20130241433A1

公开(公告)日：2013-09-19

申请号：US13881294

申请日：2011-08-23

申请人： Liang'an Ge ,  Guichao Hua ,  Xiaoli Yao ,  Lijun Ren

发明人： Liang'an Ge ,  Guichao Hua ,  Xiaoli Yao ,  Lijun Ren

IPC分类号： H05B37/02

CPC分类号： H05B37/02 ,  H05B33/0815 ,  H05B33/0827 ,  H05B33/083 ,  H05B33/0866 ,  H05B37/0263 ,  Y02B20/346

摘要： Provided are a method, apparatus and system for controlling a light source. The method comprises: acquiring an adjustment signal and determining a dimming item according to the adjustment signal; the dimming item being composed of the value and/or value range of at least one characteristics parameter of a pulse drive signal; converting the adjustment signal into the pulse drive signal indicated by the dimming item; controlling an adjustment switch by means of the pulse drive signal, so as to output a voltage including a chopped wave voltage corresponding to the dimming item, thereby transmitting adjustment information about the colour and/or brightness of the light source by means of the voltage including the chopped wave voltage. The method, apparatus and system can achieve the function of adjusting the colour and/or brightness of the light source.

摘要翻译： 提供了一种用于控制光源的方法，装置和系统。 该方法包括：根据调整信号获取调整信号并确定调光项; 所述调光项目由脉冲驱动信号的至少一个特性参数的值和/或值范围组成; 将调整信号转换成由调光项目指示的脉冲驱动信号; 通过脉冲驱动信号控制调节开关，以输出包括对应于调光项目的斩波波电压的电压，从而通过包括电压的电压来发送关于光源的颜色和/或亮度的调整信息 斩波电压。 该方法，装置和系统可以实现调节光源的颜色和/或亮度的功能。

公开(公告)号：US20110080102A1

公开(公告)日：2011-04-07

申请号：US12896346

申请日：2010-10-01

申请人： Liangan Ge ,  Xiaoli Yao ,  Guichao Hua

发明人： Liangan Ge ,  Xiaoli Yao ,  Guichao Hua

IPC分类号： H05B37/02

CPC分类号： H05B33/0815 ,  H05B33/0827 ,  Y02B20/348

摘要： The present invention discloses a high efficiency constant current LED driver, which comprises a rectification bridge, a PFC main circuit, an isolated DC/DC converter, a PFC controller and a PFC bus control circuit. Since the input voltage is an intermediate PFC bus voltage, which varies with the output voltage of the DC/DC converter. When the isolated DC/DC converter is an LLC resonant circuit, the operating frequency of the LLC circuit is close to the resonant frequency within a wide output voltage range. Thus, the gain range and the operating frequency is narrow, and can enable the constant current module to work with a high efficiency at a wide output voltage range. When the isolated DC/DC converter is a symmetric half bridge, or an asymmetric half bridge or a full bridge circuit, the duty cycle of DC/DC circuit is close to 50% within a wide output voltage range. Thus, the changing range of the duty cycle of the DC/DC converter will be narrow and can improve the efficiency dramatically.

摘要翻译： 本发明公开了一种高效率恒流LED驱动器，其包括整流桥，PFC主电路，隔离DC / DC转换器，PFC控制器和PFC总线控制电路。 由于输入电压是中间PFC总线电压，其随着DC / DC转换器的输出电压而变化。 当隔离的DC / DC转换器是LLC谐振电路时，LLC电路的工作频率接近于宽输出电压范围内的谐振频率。 因此，增益范围和工作频率窄，可以使恒流模块在宽输出电压范围内以高效率工作。 当隔离式DC / DC转换器为对称半桥，或非对称半桥或全桥电路时，DC / DC电路的占空比在宽输出电压范围内接近50％。 因此，DC / DC转换器的占空比的变化范围将变窄，并且可以显着提高效率。

公开(公告)号：US20100225219A1

公开(公告)日：2010-09-09

申请号：US12703442

申请日：2010-02-10

申请人： Guichao Hua

发明人： Guichao Hua

IPC分类号： H01J61/52

CPC分类号： F21V23/02 ,  F21K9/135 ,  F21K9/232 ,  F21K9/238 ,  F21V3/06 ,  F21V3/061 ,  F21V23/003 ,  F21V29/006 ,  F21V29/507 ,  F21V29/58 ,  F21V29/773 ,  F21V29/83 ,  F21V29/85 ,  F21W2131/103 ,  F21Y2115/10 ,  H01L2924/0002 ,  Y10S362/80 ,  H01L2924/00

摘要： A LED lamp system including an electric linker, a heat conducting liquid, a hollow cooling system with an outer surface, a hollow chamber through which a heat dissipation liquid is located, and a hollow cavity separate from the hollow chamber, at least one LED, an interface connected to the hollow cooling system and to the at least one LED, and a power supply connected between the electric linker and the interface.

摘要翻译： 一种LED灯系统，包括电连接器，导热液体，具有外表面的中空冷却系统，位于散热液体的中空室和与中空室分离的中空腔，至少一个LED， 连接到中空冷却系统和至少一个LED的接口，以及连接在电连接器和接口之间的电源。

公开(公告)号：US20050174811A1

公开(公告)日：2005-08-11

申请号：US10776967

申请日：2004-02-10

申请人： Ya Liu ,  Daifu Xiong ,  Yi Jiang ,  Guichao Hua

发明人： Ya Liu ,  Daifu Xiong ,  Yi Jiang ,  Guichao Hua

IPC分类号： H02M1/34 ,  H02M3/335

CPC分类号： H02M1/34 ,  H02M3/33592 ,  H02M2001/342 ,  Y02B70/1475 ,  Y02B70/1491

摘要： A converter includes a transformer having a primary winding, a secondary winding and an auxiliary winding, a first switching device for connecting an input voltage to the primary winding of the transformer, an output circuit connected to the secondary winding, a controller, and an integrated active clamp and primary bias circuit. The integrated active clamp and primary bias circuit includes the auxiliary winding and a second switch providing a bias voltage to the controller to alternately operate the first and second switches between conductive and non-conductive states. When the first switch is conductive the second switch is nonconducting and power is transferred from the primary winding to the output circuit via the secondary winding and from the auxiliary winding to the controller. When the first switch is nonconducting, the second switch is conducting and the voltage across the primary switch is clamped.

摘要翻译： A转换器包括具有初级绕组，次级绕组和辅助绕组的变压器，用于将输入电压连接到变压器的初级绕组的第一开关装置，连接到次级绕组的输出电路，控制器和集成 有源钳位和初级偏置电路。 集成的有源钳位和初级偏置电路包括辅助绕组和向控制器提供偏置电压的第二开关，以在导通状态和非导通状态之间交替地操作第一和第二开关。 当第一开关导通时，第二开关是不导通的，并且功率通过次级绕组和辅助绕组从初级绕组传送到输出电路到控制器。 当第一个开关不导通时，第二个开关导通，主开关两端的电压被钳位。

公开(公告)号：US08629664B2

公开(公告)日：2014-01-14

申请号：US13511059

申请日：2010-11-15

申请人： Liang'an Ge ,  Xiaoli Yao ,  Guichao Hua ,  Xinke Wu ,  Lijun Ren

发明人： Liang'an Ge ,  Xiaoli Yao ,  Guichao Hua ,  Xinke Wu ,  Lijun Ren

IPC分类号： H02M3/24 ,  G05F1/14

CPC分类号： H05B33/0815 ,  H02M3/33523 ,  H02M2001/0064 ,  H02M2001/008 ,  H05B33/0827 ,  Y10T307/414

摘要： A multi-path constant current drive circuit includes a DC/AC converter, a main transformer and at least two rectifying and filtering units. The main transformer includes at least one assistant side winding with a tap; together with the assistant side winding of the main transformer, each of the at least two rectifying and filtering units respectively forms a power supply loop; each power supply loop includes a first rectifying loop and a second rectifying loop, which are relatively used for the rectification of the positive and the negative half-cycle alternating voltage; a current-equalizing transformer is arranged between the adjacent first power supply loop and second power supply loop, the windings of the current-equalizing transformer are respectively in the rectifying loops contained in the first power supply loop and the second power supply loop, thus realizing the current equalization between the different rectifying loops in which the adjacent rectifying and filtering units are contained. The multi-path constant current drive circuit performs a good current equalization, and can reduce the volume of the current-equalizing transformer and decrease the cost.

摘要翻译： 多路恒流驱动电路包括DC / AC转换器，主变压器和至少两个整流滤波单元。 主变压器包括至少一个带有水龙头的辅助侧绕组; 连同主变压器的辅助侧绕组，至少两个整流滤波单元中的每一个分别形成电源回路; 每个电源回路包括第一整流回路和第二整流回路，其相对用于正和负半周期交流电压的整流; 在相邻的第一电源回路和第二电源回路之间布置有电流均衡变压器，电流均衡变压器的绕组分别在包含在第一电源回路和第二电源回路中的整流回路中，从而实现 其中包含相邻整流和滤波单元的不同整流回路之间的电流均衡。 多路恒流驱动电路实现良好的电流均衡，可以减小电流均衡变压器的体积，降低成本。