公开(公告)号：US10602601B2

公开(公告)日：2020-03-24

申请号：US16271126

申请日：2019-02-08

申请人： KABUSHIKI KAISHA TOSHIBA

发明人： Motofumi Tanaka ,  Toshiki Osako ,  Hiroki Murayama ,  Naoto Shinohara ,  Hiroyuki Yasui

IPC分类号： H05B41/16 ,  H05H1/24 ,  H02M7/48 ,  H02M3/158 ,  H02M7/06 ,  H02M7/5387

摘要： A creeping discharge element drive device of an embodiment includes a switching element, a current detector, a zero-cross detection circuit, a storage, and a controller. The current detector detects alternating currents flowing through the switching element. The zero-cross point detection circuit detects a zero-cross point of the alternating currents. The storage stores a first threshold value of a resonant period. The controller drives the switching element to apply a test voltage to the creeping discharge element, determines a resonant period of the alternating currents from the detected zero-cross points of the alternating currents, and restricts or stops the driving of the switching element in response to the resonant period exceeding the first threshold value.

公开(公告)号：US20190309915A1

公开(公告)日：2019-10-10

申请号：US15947440

申请日：2018-04-06

申请人： Clark Equipment Company

发明人： Nicholas Harknett ,  Robert Ranker

IPC分类号： F21L13/00 ,  H02K11/00 ,  H05B41/16 ,  F21S9/04 ,  F21V23/00 ,  F21V23/02

摘要： A light tower includes a generator assembly including a prime mover, an alternator operably connected to the prime mover, the alternator configured to produce alternating current electrical energy, and a rectifier operably connected to the alternator and configured to convert alternating current electrical energy produced by the alternator to direct current electrical energy. At least one light emitting diode matrix is electrically connected to the generator assembly by an electrical connection, and a regulator is operably connected to the alternator and configured to detect a current of the direct current electrical energy in the electrical connection. In response to a detected current of the direct current electrical energy in the electrical connection, the regulator controls the alternator to adjust the current supplied to the at least one light emitting diode matrix.

公开(公告)号：US10064248B2

公开(公告)日：2018-08-28

申请号：US15456046

申请日：2017-03-10

申请人： Cooper Technologies Company

发明人： Raymond George Janik ,  Russell Scott Trask

IPC分类号： H05B41/16 ,  H05B33/08

CPC分类号： H05B33/0815 ,  H05B33/0809 ,  H05B33/0845 ,  H05B33/0896

摘要： A lighting device includes a ferroresonant transformer that receives an alternating current (AC) power signal and outputs an output power signal. The lighting device further includes a rectifier coupled to the ferroresonant transformer. The rectifier rectifies the output power signal from the ferroresonant transformer and generates a rectified power signal. The lighting device also includes a dc-to-dc converter coupled to the rectifier, wherein the dc-to-dc converter receives the rectified power signal and generates a regulated power signal.

公开(公告)号：US09869431B2

公开(公告)日：2018-01-16

申请号：US15299096

申请日：2016-10-20

申请人： JIAXING SUPER LIGHTING ELECTRIC APPLIANCE CO., LTD.

发明人： Tao Jiang ,  Xiaosu Yang ,  Bao Wang ,  Nobutaka Ota ,  Xiao Sun ,  Changwei Hu ,  Guohai Yao ,  Shauliang Chen ,  Dingkai Wang ,  Wenjang Jiang

IPC分类号： H05B41/16 ,  H05B41/24 ,  F21K9/278 ,  F21V23/00 ,  H05B33/08 ,  F21V29/83 ,  F21K9/27 ,  F21K99/00 ,  F21V3/04 ,  F21V7/22 ,  F21V15/015 ,  F21V17/10 ,  F21V23/02 ,  F21K9/272 ,  B23K3/047 ,  F21Y103/00 ,  F21Y101/00 ,  F21Y101/02 ,  F21Y115/10 ,  F21Y103/10 ,  B23K101/42 ,  F21V25/04

CPC分类号： F21K9/278 ,  B23K1/0016 ,  B23K3/047 ,  B23K2101/42 ,  C03C21/002 ,  C03C27/048 ,  F21K9/1375 ,  F21K9/235 ,  F21K9/27 ,  F21K9/272 ,  F21K9/275 ,  F21K9/68 ,  F21V3/061 ,  F21V3/10 ,  F21V7/22 ,  F21V15/015 ,  F21V17/101 ,  F21V23/009 ,  F21V23/02 ,  F21V25/02 ,  F21V25/04 ,  F21V29/70 ,  F21V29/83 ,  F21Y2101/00 ,  F21Y2103/00 ,  F21Y2103/10 ,  F21Y2115/10 ,  H05B6/105 ,  H05B33/0803 ,  H05B33/0809 ,  H05B33/0815 ,  H05B33/0845 ,  H05B33/0884 ,  H05B33/089

摘要： A thermo-compression head, a soldering system, and a LED tube lamp are disclosed. The thermo-compression head includes a bonding plane, a restraining plane, one or more concave guiding tank, and one or more concave molding tank. The bonding plane is for touching a second object. The restraining plane is adjacent to the bonding plane for touching a first object soldered to the second object. The concave guiding tank is formed on the bonding plane. An end of the concave guiding tank is opened near an edge of the bonding plane while an opposite end of the concave guiding tank is closed. The concave molding tank is formed on the restraining plane and positioned beside the concave guiding tank. The concave molding tank communicates with the concave guiding tank via the open end of the concave guiding tank.

公开(公告)号：US09642202B2

公开(公告)日：2017-05-02

申请号：US15049457

申请日：2016-02-22

申请人： ECOSENSE LIGHTING INC.

发明人： Hang Fai Li ,  Ping Ho Yee ,  Hoi Kuen Chan ,  Chiu Ho Wong

IPC分类号： H05B41/16 ,  H05B41/24 ,  H05B33/08

CPC分类号： H05B33/0845 ,  H05B33/0803 ,  H05B33/0815 ,  Y02B20/345 ,  Y02B20/46

摘要： In embodiments, improved capabilities are described for dimming performance of lighting methods and systems, such as the improvement of dimming LED lamps that are dimmed from standard external dimming devices. Methods and systems for improving dimming performance include a fast startup override facility for overriding a default dimming function of the lamp's electronics through forcing the lamp electronics to operate with a higher than normal duty cycle to ensure the lamp electronics can deliver higher than normal power to an LED module during a dimming current level startup condition. Dimming facilities may also include a dynamic RC selection facility, an active N-level bleeder facility, a dimmer-type detection facility, an improved dimming linearity through symmetrical phase cutting facility, and a flicker reduction facility.

公开(公告)号：US09433043B1

公开(公告)日：2016-08-30

申请号：US14696456

申请日：2015-04-26

申请人： OPTOLUM, INC.

发明人： Douglas Laurence Hanz

IPC分类号： H05B41/16 ,  H05B41/24 ,  H05B33/08 ,  H01F27/24 ,  H01F27/28

CPC分类号： H01F27/2804 ,  H01F2027/2809 ,  H01F2027/2819 ,  H05B33/0815

摘要： A light emitting diode (LED) power supply providing current to a plurality of LEDs comprises a planar transformer. The planar transformer comprises a first multilayer printed circuit board comprising a first plurality of planar windings electrically connected in series to form a first primary portion. Each winding of the first plurality of planar windings is carried on a separate layer of the first multilayer printed circuit board. The transformer further comprises a second multilayer printed circuit board comprising a second plurality of planar windings electrically connected in series to form a second primary portion. Each winding of the second plurality of planar windings is carried on a separate layer of the second multilayer printed circuit board. The transformer additionally comprises a third multilayer printed circuit board comprising a third planar winding carried on two layers to provide a secondary.

摘要翻译： 向多个LED提供电流的发光二极管（LED）电源包括平面变压器。 平面变压器包括第一多层印刷电路板，其包括串联电连接以形成第一主要部分的第一多个平面绕组。 第一多个平面绕组的每个绕组承载在第一多层印刷电路板的单独层上。 变压器还包括第二多层印刷电路板，其包括串联电连接以形成第二主要部分的第二多个平面绕组。 第二多个平面绕组的每个绕组承载在第二多层印刷电路板的单独层上。 变压器还包括第三多层印刷电路板，其包括承载在两层上以提供次级的第三平面绕组。

公开(公告)号：US09406498B2

公开(公告)日：2016-08-02

申请号：US13500666

申请日：2010-09-27

申请人： Michael Haacke ,  Lars Dabringhausen

发明人： Michael Haacke ,  Lars Dabringhausen

IPC分类号： H05B41/16 ,  H01J61/82 ,  H01J61/34 ,  H05B41/288

CPC分类号： H01J61/827 ,  H01J61/34 ,  H05B41/2885 ,  Y02B20/202

摘要： A lighting assembly (100) includes an electronic driver circuit (110) and a discharge lamp (10). The discharge lamp (10) is driven with a steady-state average power of 20-30 W. It includes a discharge vessel (20) of a maximum inner dimension ID of less than 3 mm with two electrodes (24). A discharge vessel filling comprises a rare gas and a metal halide composition provided in an amount per volume of the discharge vessel (20) of less than 13.2 μg/μl. Electrical energy is supplied as an alternating current IL where pulses (150a-150d) are superimposed. The pulses occur in a time interval of 20% of a half-cycle time before or after a polarity change of the alternating current IL. During the pulses the current IL reaches the current value of at least 1.2 times the RMS value of the current IL.

摘要翻译： 照明组件（100）包括电子驱动电路（110）和放电灯（10）。 放电灯（10）以20-30W的稳态平均功率驱动。它包括具有小于3mm的最大内部尺寸ID的放电容器（20），具有两个电极（24）。 放电容器填充物包含稀释气体和以每体积体积的放电容器（20）的量小于13.2μg/μl提供的金属卤化物组合物。 电能作为交流电IL提供，其中脉冲（150a-150d）被叠加。 脉冲在交流电的IL极性变化之前或之后的半周期时间的20％的时间间隔内发生。 在脉冲期间，电流IL达到电流IL的RMS值的至少1.2倍的电流值。

公开(公告)号：US09380668B2

公开(公告)日：2016-06-28

申请号：US14204003

申请日：2014-03-11

申请人： Dialog Semiconductor GmbH

发明人： Julian Tyrrell

IPC分类号： H05B41/16 ,  H05B33/08

CPC分类号： H05B33/0845 ,  H05B33/0815 ,  H05B33/0848

摘要： A modulated current of an LED device provides a capability to dim of the light produced by a string of LED device. The current modulation takes the form of pulse width modulation (PWM) or pulse density modulation (PDM). The modulation is produced on the primary side of a transformer and coupled to the string of LED diodes that are coupled to the secondary side of the transformer. The modulation is varied to change the current of the LED devices and therefore the light intensity of the LED devices.

摘要翻译： LED器件的调制电流提供了对由一串LED器件产生的光进行调光的能力。 目前的调制采取脉宽调制（PWM）或脉冲密度调制（PDM）的形式。 调制在变压器的初级侧产生并耦合到耦合到变压器的次级侧的LED二极管串。 改变调制以改变LED器件的电流，并因此改变LED器件的光强度。

公开(公告)号：US09287762B2

公开(公告)日：2016-03-15

申请号：US14208418

申请日：2014-03-13

申请人： Hisahiro Kamata ,  Eiki Hirama ,  Masahiro Noguchi

发明人： Hisahiro Kamata ,  Eiki Hirama ,  Masahiro Noguchi

IPC分类号： H05B41/16 ,  H05B41/24 ,  H02M1/08 ,  H02M7/537 ,  H05H1/24 ,  B41J11/00

CPC分类号： H02M1/08 ,  B41J11/0015 ,  H02M7/537 ,  H05H1/2406 ,  H05H2001/2412 ,  Y02B70/1441

摘要： An inverter switches input voltage Vin to flow an excitation current to excitation winding Np of a transformer and output to a discharger an alternating voltage Vout from the output winding Ns. In an output circuit flowing a current to the discharger, a voltage-responsive connector is connected in series with the winding Ns to interrupt or connect the output circuit according to a voltage applied to between opposed electrodes. The voltage-responsive connector has characteristics of keeping the electrodes in an insulated state until an instantaneous value of the alternating voltage reaches a predetermined value, and holding the electrodes in a conduction state while the instantaneous value of the alternating voltage has reached the predetermined value and continues to exceed the predetermined value, and quickly returning the electrodes to the insulated state when the instantaneous value of the alternating voltage has fallen below the predetermined value.

摘要翻译： 逆变器切换输入电压Vin以使激励电流流过变压器的励磁绕组Np，并从输出绕组Ns向放电器输出交流电压Vout。 在将电流流向放电器的输出电路中，电压响应连接器与绕组Ns串联连接，以根据施加到相对电极之间的电压中断或连接输出电路。 电压响应连接器具有将电极保持在绝缘状态直到交流电压的瞬时值达到预定值并且在交流电压的瞬时值已经达到预定值的同时将电极保持在导通状态的特性，以及 继续超过预定值，并且当交流电压的瞬时值已经低于预定值时，迅速使电极返回到绝缘状态。

公开(公告)号：US09167646B2

公开(公告)日：2015-10-20

申请号：US13156310

申请日：2011-06-08

申请人： Karl Jean-Paul Courtel

发明人： Karl Jean-Paul Courtel

IPC分类号： H05B41/16 ,  H05B33/08

CPC分类号： H05B33/0818 ,  H05B33/0815 ,  H05B33/0824

摘要： A PWM architecture of a microcontroller is disclosed that includes a fault module for regulating and detecting faults in current sensing or illuminating devices (e.g., LED strings). The fault module is part of a hardware regulation loop of LED voltage and LED current that allows the CPU to be placed in idle mode (“IDLE”) while an LED string is regulated in illumination. The microcontroller includes a PWM generator having a double channels PWM timer with a specific fault mode and an amplified comparator with a voltage reference. The architecture allows tuning of various parameters, including LED peak current, LED voltage supply, LED voltage regulation step and LED dimming value. In IDLE mode, the hardware regulation loop can regulate LED peak current and LED voltage supply without any CPU resource (microcontroller in IDLE mode). The fault module part of the hardware regulation loop can also detect and inform the CPU of: 1) an open LED; 2) a weak battery; and 3) an LED voltage that is under a target value.

摘要翻译： 公开了一种微控制器的PWM架构，其包括用于调节和检测电流感测或照明装置（例如，LED串）中的故障的故障模块。 故障模块是LED电压和LED电流的硬件调节回路的一部分，允许CPU在照明中调节LED串时将其置于空闲模式（“IDLE”）。 微控制器包括具有特定故障模式的双通道PWM定时器和具有电压基准的放大比较器的PWM发生器。 该架构允许调整各种参数，包括LED峰值电流，LED电压供应，LED电压调节步长和LED调光值。 在空闲模式下，硬件调节环路可以调节LED峰值电流和LED电压供应，无需任何CPU资源（空闲模式下的微控制器）。 硬件调节回路的故障模块部分也可以检测并通知CPU：1）一个开路的LED; 2）电池电量不足; 和3）低于目标值的LED电压。