公开(公告)号：US09018845B2

公开(公告)日：2015-04-28

申请号：US14000501

申请日：2011-07-21

Applicant: Liang'an Ge ,  Xiaoli Yao

Inventor： Liang'an Ge ,  Xiaoli Yao

IPC: H05B37/00 ,  H05B39/00 ,  H05B41/00 ,  H05B33/08

CPC classification number: H05B33/0815 ,  H05B33/0827 ,  H05B33/0866 ,  Y02B20/347

Abstract: Provided is a circuit for adjusting light-emitting diode (LED) current; the circuit comprises: a single-output constant current source (21), a multi-path LED output circuit (22) and a control bus (20) connected to the multi-path LED output circuit (22); any given LED output circuit comprises: a load circuit (23), an adjustment circuit (24), a current regulation circuit (25) and an adjustment control circuit (26). The circuit for adjusting LED current provided in the technical solution of the present invention adjusts the current of each LED output circuit via the load circuit, the adjustment circuit, the current regulation circuit and the adjustment control circuit, thus adjusting characteristic parameters such as color, color temperature, color rendering index, brightness and the like of the LED light source, thereby avoiding the problem of high cost caused by using multi-path constant current DC/DC circuit to adjust the current of each path.

Abstract translation: 提供了用于调节发光二极管（LED）电流的电路; 该电路包括：单输出恒流源（21），连接到多路LED输出电路（22）的多路LED输出电路（22）和控制总线（20）。 任何给定的LED输出电路包括：负载电路（23），调节电路（24），电流调节电路（25）和调节控制电路（26）。 本发明的技术方案中提供的用于调节LED电流的电路通过负载电路，调节电路，电流调节电路和调节控制电路调节每个LED输出电路的电流，从而调整诸如颜色， 色温，显色指数，亮度等，从而避免了使用多路恒流DC / DC电路调节各路径的电流引起的成本高的问题。

公开(公告)号：US08866409B2

公开(公告)日：2014-10-21

申请号：US13700352

申请日：2010-11-10

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

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

IPC: G05F1/00

CPC classification number: G05F1/10 ,  H05B33/0815 ,  H05B33/0827 ,  H05B37/02 ,  Y02B20/347

Abstract: 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.

Abstract translation: 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：US20130271032A1

公开(公告)日：2013-10-17

申请号：US13994280

申请日：2011-08-23

Applicant: Guichao Hua ,  Liang'an Ge ,  Hangdong Yu

Inventor： Guichao Hua ,  Liang'an Ge ,  Hangdong Yu

IPC: H05B33/08

CPC classification number: H05B33/0815 ,  H05B33/0827 ,  Y10T307/406

Abstract: 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.

Abstract translation: 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

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

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

IPC: H05B37/02

CPC classification number: H05B37/02 ,  H05B33/0815 ,  H05B33/0827 ,  H05B33/083 ,  H05B33/0866 ,  H05B37/0263 ,  Y02B20/346

Abstract: 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.

Abstract translation: 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：US20120286678A1

公开(公告)日：2012-11-15

申请号：US13519476

申请日：2010-12-09

Applicant: Xinke Wu ,  Liang'an Ge

Inventor： Xinke Wu ,  Liang'an Ge

IPC: H05B37/00

CPC classification number: H05B33/0815 ,  H05B33/0818 ,  H05B37/02

Abstract: A drive circuit for realizing accurate constant current of multiple LEDs is disclosed. The drive circuit comprises a high-frequency impulse Alternating Current (AC) power carrying N circuit units with same structure. Each of the circuit unit comprises a rectifier filter circuit, a blocking capacitor C1 and two LED loads. The rectifier filter circuit comprises two independent half-wave rectifier circuits, and two filter capacitors. Each of the two half-wave rectifier circuits comprises two diodes connected in series to supply power for the corresponding LED load. The filter capacitor is connected in parallel with the two ends of an LED load respectively, and the blocking capacitor C1 is connected in series with the input end of the rectifier filter circuit. The circuit also comprises N−1 equalizing transformers, each of which connects in series between two adjacent circuit units. A drive circuit for constant output current of multiple LEDs with high efficient, low cost and great flow equalization is provided in the embodiment of the invention. When the differential voltage of the two LED loads is large, high efficiency can also be achieved.

Abstract translation: 公开了一种用于实现多个LED的精确恒定电流的驱动电路。 驱动电路包括具有相同结构的N个电路单元的高频脉冲交流（AC）电力。 每个电路单元包括整流滤波电路，阻塞电容器C1和两个LED负载。 整流滤波电路包括两个独立的半波整流电路和两个滤波电容器。 两个半波整流电路中的每一个包括串联连接的两个二极管，用于为相应的LED负载供电。 滤波电容器分别与LED负载的两端并联连接，隔离电容器C1与整流滤波电路的输入端串联连接。 电路还包括N-1个均衡变压器，每个变压器串联连接在两个相邻的电路单元之间。 在本发明的实施例中提供了用于具有高效，低成本和大流量均衡的多个LED的恒定输出电流的驱动电路。 当两个LED负载的差分电压大时，也可以实现高效率。

公开(公告)号：US09240711B2

公开(公告)日：2016-01-19

申请号：US14346086

申请日：2012-08-06

Applicant: Liang'an Ge ,  Xiaoli Yao

Inventor： Liang'an Ge ,  Xiaoli Yao

IPC: H02M1/42 ,  H02M7/217 ,  H05B33/08 ,  H02M3/07

CPC classification number: H02M1/4208 ,  H02M3/07 ,  H02M7/2176 ,  H05B33/0815 ,  H05B33/0848 ,  Y02B20/347 ,  Y02B70/126

Abstract: A constant current control circuit with PFC function and its PFC circuit are provided. The PFC circuit comprises a valley-filled PFC circuit and a harmonic compensation circuit, whose output signal is supplied to the current control circuit. By adding the harmonic compensation circuit to the PFC circuit, the distortion of input current is decreased and the power factor is enhanced. Moreover, the whole circuit is simplified and its cost is reduced.

Abstract translation: 提供具有PFC功能的恒流控制电路及其PFC电路。 PFC电路包括谷底填充PFC电路和谐波补偿电路，其输出信号被提供给电流控制电路。 通过向PFC电路添加谐波补偿电路，输入电流的失真减小，功率因数提高。 此外，整个电路简化，成本降低。

公开(公告)号：US09215767B2

公开(公告)日：2015-12-15

申请号：US13994280

申请日：2011-08-23

Applicant: Guichao Hua ,  Liang'an Ge ,  Hangdong Yu

Inventor： Guichao Hua ,  Liang'an Ge ,  Hangdong Yu

IPC: H05B37/02 ,  H05B33/08

CPC classification number: H05B33/0815 ,  H05B33/0827 ,  Y10T307/406

Abstract: 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.

Abstract translation: 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：US09185756B2

公开(公告)日：2015-11-10

申请号：US13995817

申请日：2011-08-23

Applicant: Liang'an Ge ,  Guichao Hua ,  Xiaoli Yao ,  Yang Liu

Inventor： Liang'an Ge ,  Guichao Hua ,  Xiaoli Yao ,  Yang Liu

IPC: H05B37/02 ,  H05B33/08

CPC classification number: H05B33/0815 ,  H05B33/0827 ,  Y02B20/347

Abstract: A load driving device and system, and a limiting point control method and device. The load driving device comprising: a voltage/current regulative main circuit placed under the control of an output current controller, for use in conducting a voltage conversion on an input voltage, and in supplying electric power to a subsequent load unit; a sampling unit connected to an output terminal of the main circuit, for use in sampling an output feature parameter of the main circuit; the output current controller, for use in controlling a limiting point of the main circuit, and on the basis of the adjustment direction of the limiting point and on changes of the output feature parameters of the main circuit before and after an adjustment, determining a steady working point for the main circuit, and controlling the main circuit to work at the steady working point. The load driving device and system enable an increase in driver reliability and a reduction in circuit complexity.

Abstract translation: 负载驱动装置和系统，以及限制点控制方法和装置。 所述负载驱动装置包括：电压/电流调节主电路，其设置在输出电流控制器的控制下，用于对输入电压进行电压转换，并向随后的负载单元供电; 连接到主电路的输出端的采样单元，用于对主电路的输出特性参数进行采样; 输出电流控制器，用于控制主电路的限制点，并且基于限制点的调节方向以及调整之前和之后的主电路的输出特征参数的变化，确定稳定的 主电路工作点，控制主电路工作在稳定工作点。 负载驱动装置和系统能够提高驱动器的可靠性和降低电路复杂度。

公开(公告)号：US09072126B2

公开(公告)日：2015-06-30

申请号：US13814771

申请日：2010-12-31

Applicant: Liang'an Ge ,  Xiaoli Yao

Inventor： Liang'an Ge ,  Xiaoli Yao

IPC: H05B37/00 ,  H05B41/00 ,  H05B37/02 ,  H05B33/08

CPC classification number: H05B37/02 ,  H05B33/0815 ,  H05B33/0887 ,  Y02B20/341

Abstract: A open-circuit protection circuit of a constant current driving circuit for light emitting diodes is disclosed, which includes that: a transformer (Ta1), which has at least one secondary winding (WT1), is connected to at least two load branches (A1, A2); a commutating loop is composed of each load branches (A1, A2) and one secondary winding (WT1), wherein the secondary winding (WT1) has tap ends; a current sharing transformer (T1) is set in two neighbor load branch (A1, A2); each load branch (A1, A2) is separately connected to one open-circuit protection module (10). The open circuit protection module (10) includes: a detection control unit (101), used for outputting a control signal to a processing unit (102) when the detection control unit detects that the output voltages of each load branch (A1, A2) or the voltages proportionate to the output voltages are not less than a corresponding preset threshold; the processing unit (102), used for shorting one secondary sub winding (WT11, WT12) in the corresponding load branch (A1, A2) and a sharing current winding (W1) of the current sharing transformer (T1) in series with the secondary sub winding (WT11, WT12) when receiving the control signal. With the embodiments of the present invention, the cost and the bulk of the current sharing transformer (T1) can be reduced.

Abstract translation: 公开了一种用于发光二极管的恒流驱动电路的开路保护电路，其包括：具有至少一个次级绕组（WT1）的变压器（Ta1）连接到至少两个负载分支（A1 ， A2）; 一个换向回路由每个负载分支（A1，A2）和一个次级绕组（WT1）组成，其中次级绕组（WT1）具有抽头端; 在两个相邻负载分支（A1，A2）中设置电流共享变压器（T1）; 每个负载分支（A1，A2）分别连接到一个开路保护模块（10）。 开路保护模块（10）包括：检测控制单元（101），用于当检测控制单元检测到每个负载分支（A1，A2）的输出电压时，将控制信号输出到处理单元（102） 或与输出电压成比例的电压不小于相应的预设阈值; 用于将相应的负载分支（A1，A2）中的一个次级次级绕组（WT11，WT12）与电流共享变压器（T1）的共享电流绕组（W1）与次级系统串联的短路处理单元（102） 子绕组（WT11，WT12）接收到控制信号。 利用本发明的实施例，可以减小电流共享变压器（T1）的成本和体积。

公开(公告)号：US20140225527A1

公开(公告)日：2014-08-14

申请号：US14346086

申请日：2012-08-06

Applicant: Liang'an Ge ,  Xiaoli Yao

Inventor： Liang'an Ge ,  Xiaoli Yao

IPC: H02M1/42 ,  H05B33/08

CPC classification number: H02M1/4208 ,  H02M3/07 ,  H02M7/2176 ,  H05B33/0815 ,  H05B33/0848 ,  Y02B20/347 ,  Y02B70/126

Abstract: A constant current control circuit with PFC function and its PFC circuit are disclosed. The PFC circuit comprises a valley-filled PFC circuit (306) and a harmonic compensation circuit (307), whose output signal is supplied to the current control circuit (304). By adding the harmonic compensation circuit (307) to the PFC circuit, the distortion of input current is decreased and the power factor is enhanced. Moreover, the whole circuit is simplified and its cost is reduced

Abstract translation: 公开了具有PFC功能的恒流控制电路及其PFC电路。 PFC电路包括谷值填充PFC电路（306）和谐波补偿电路（307），其输出信号被提供给电流控制电路（304）。 通过向PFC电路添加谐波补偿电路（307），降低输入电流的失真，提高功率因数。 此外，整个电路简化，成本降低