公开(公告)号：US09426861B2

公开(公告)日：2016-08-23

申请号：US14409105

申请日：2013-06-26

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Haimin Tao ,  Shrek Wang ,  Jianhong Kong

IPC: H05B41/36 ,  H05B33/08 ,  H05B41/298

CPC classification number: H05B33/0887 ,  H05B33/0809 ,  H05B33/0884 ,  H05B41/2981 ,  H05B41/2983 ,  Y02B20/341

Abstract: To protect electromagnetic ballasts against damage, driver circuits for coupling the electromagnetic ballasts to light circuits comprising light emitting diodes are provided with rectifier bridges for exchanging first current signals with the electromagnetic ballasts and for providing second current signals to the light circuits, and with protection circuits for protecting the electromagnetic ballasts against parameters of the first current signals obtaining values larger than threshold values. The parameters may be direct-current components of the first current signals and may be average values of rectified versions of the first current signals/peak values of the first current signals. The rectifier bridges may comprise first diode elements. The protection circuits may comprise second diode elements serially coupled to the first diode elements. The protection circuit may comprise average value detectors/peak value detectors and may comprise switches for, in response to detection results, interrupting the second current signals.

Abstract translation: 为了保护电磁镇流器免受损坏，用于将电磁镇流器耦合到包括发光二极管的光回路的驱动电路设置有用于与电磁镇流器交换第一电流信号并用于向光电路提供第二电流信号的整流桥，以及保护电路 用于保护电磁镇流器抵抗第一电流信号的参数获得大于阈值的值。 参数可以是第一电流信号的直流分量，并且可以是第一电流信号的整流版本的平均值/第一电流信号的峰值。 整流器桥可以包括第一二极管元件。 保护电路可以包括串联耦合到第一二极管元件的第二二极管元件。 保护电路可以包括平均值检测器/峰值检测器，并且可以包括用于响应于检测结果中断第二电流信号的开关。

公开(公告)号：US20120169255A1

公开(公告)日：2012-07-05

申请号：US12981378

申请日：2010-12-29

Applicant: Luca Giussani ,  Romino Cretone

Inventor： Luca Giussani ,  Romino Cretone

IPC: H05B37/02

CPC classification number: H05B41/2853 ,  H05B41/2983

Abstract: A control device of a driving circuit of a discharge lamp is described. The driving circuit comprises an half bridge with a high side and a low side switches and the control device comprises a first device configured to control the switching frequency of the half bridge and a second device configured to detect the saturation current condition of the choke or the over current condition by detecting, cycle by cycle, a signal representative of the current passing through the low side switch. The second device generate a signal to cause the turning off of the low side switch and the turning on of the high side switch when the saturation current or over current condition of the choke is detected.

Abstract translation: 描述放电灯的驱动电路的控制装置。 驱动电路包括具有高侧的半桥和低侧开关，并且控制装置包括被配置为控制半桥的开关频率的第一装置和被配置为检测扼流圈的饱和电流状态的第二装置 通过逐个周期检测表示通过低侧开关的电流的信号的过电流状态。 当检测到扼流器的饱和电流或过电流状态时，第二装置产生信号以引起低侧开关的关断和高侧开关的接通。

公开(公告)号：US07728525B2

公开(公告)日：2010-06-01

申请号：US11829328

申请日：2007-07-27

Applicant: Shashank S. Bakre

Inventor： Shashank S. Bakre

IPC: H05B37/00

CPC classification number: H05B41/2853 ,  H02J9/065 ,  H05B41/2923 ,  H05B41/2983 ,  Y02B20/208

Abstract: A ballast (e.g. a fluorescent light ballast) includes a primary ballast for powering the lamp from a power supply (e.g., utility line power) and an battery powered ballast for powering the lamp from a battery when the primary power supply is not energized by the power supply. When power supply power is restored to the ballast, the ballast shuts down the battery powered ballast and a switch circuit operably connects the lamp to the primary ballast. The ballast toggles the switch circuit such that the primary ballast detects replacement of a lamp and resets any fault detection or protection circuits (e.g., an end of lamp life circuit) that may have been triggered during the transition from battery power to power from the power supply.

Abstract translation: 镇流器（例如荧光灯镇流器）包括用于从电源（例如，公用电源电源）为灯供电的主镇流器和用于为主电源未被电源供电的来自电池的电池供电的镇流器 电源。 当电源电源恢复到镇流器时，镇流器关闭电池供电的镇流器，并且开关电路将灯可操作地连接到主镇流器。 镇流器切换开关电路，使得主要镇流器检测到灯的更换并且复位在从电力从电力转换到电力期间可能触发的任何故障检测或保护电路（例如，灯寿命电路的结束） 供应。

公开(公告)号：US20090026960A1

公开(公告)日：2009-01-29

申请号：US11829328

申请日：2007-07-27

Applicant: Shashank S. Bakre

Inventor： Shashank S. Bakre

IPC: H05B37/02 ,  H02J7/00

CPC classification number: H05B41/2853 ,  H02J9/065 ,  H05B41/2923 ,  H05B41/2983 ,  Y02B20/208

Abstract: A ballast (e.g. a fluorescent light ballast) includes a primary ballast for powering the lamp from a power supply (e.g., utility line power) and an battery powered ballast for powering the lamp from a battery when the primary power supply is not energized by the power supply. When power supply power is restored to the ballast, the ballast shuts down the battery powered ballast and a switch circuit operably connects the lamp to the primary ballast. The ballast toggles the switch circuit such that the primary ballast detects replacement of a lamp and resets any fault detection or protection circuits (e.g., an end of lamp life circuit) that may have been triggered during the transition from battery power to power from the power supply.

Abstract translation: 镇流器（例如荧光灯镇流器）包括用于从电源（例如，公用电源电源）为灯供电的主镇流器和用于为主电源未被电源供电的来自电池的电池供电的镇流器 电源。 当电源电源恢复到镇流器时，镇流器关闭电池供电的镇流器，并且开关电路将灯可操作地连接到主镇流器。 镇流器切换开关电路，使得主要镇流器检测到灯的更换并且复位在从电力从电力转换到电力期间可能触发的任何故障检测或保护电路（例如，灯寿命电路的结束） 供应。

公开(公告)号：US6057652A

公开(公告)日：2000-05-02

申请号：US598872

申请日：1996-02-09

Applicant: Wei Chen ,  Fred C. Lee ,  Koji Nishiura ,  Tokushi Yamauchi ,  Yoshinobu Murakami ,  Minoru Maehara

Inventor： Wei Chen ,  Fred C. Lee ,  Koji Nishiura ,  Tokushi Yamauchi ,  Yoshinobu Murakami ,  Minoru Maehara

IPC: H05B41/28 ,  H05B41/295 ,  H05B41/298 ,  H05B37/02

CPC classification number: H05B41/295 ,  H05B41/28 ,  H05B41/2983 ,  Y10S315/04

Abstract: High voltage stress on the semiconductor devices at light load conditions, high total harmonic distortion (THD) of the line current, and poor crest factor (CF) of lamp current of "charge pump" electronic ballast circuits make them difficult to manufacture cost-effectively. To overcome these deficiencies, the DC bus voltage is reduced at light loads by providing a second resonance. One technique, high-frequency second-stage resonance, provides sufficient preheating at low V.sub.dc. Combined with the instant startup and the proper restart scheme, this technique can greatly reduce the maximum V.sub.dc at ignition. Another technique, low-frequency second-stage resonance, can reduce the steady state V.sub.dc at light loads, including during start-up. Consequently, high ignition voltage can be continuously impressed on the lamp without increasing V.sub.dc. Further, a diode clamping technique smooths the envelope of V.sub.a, thereby achieving near unity power factor, low THD and low CF without close-loop control.

Abstract translation: 在轻负载条件下，半导体器件上的高电压应力，线电流的总谐波失真（THD）和“电荷泵”电子镇流器电路的灯电流差峰值因数（CF）使得它们难以成本有效地制造 。 为了克服这些缺陷，通过提供第二共振，在轻负载时直流母线电压降低。 一种技术，高频第二级谐振在低Vdc下提供足够的预热。 结合即时启动和正确的重启方案，该技术可以大大降低点火时的最大Vdc。 另一种技术，低频第二级谐振可以减轻轻载时的稳态Vdc，包括启动期间。 因此，在不增加Vdc的情况下，可以在灯上持续施加高的点火电压。 此外，二极管钳位技术使Va的包络平滑，从而实现近乎一致的功率因数，低THD和低CF，而无需闭环控制。

公开(公告)号：US3505562A

公开(公告)日：1970-04-07

申请号：US3505562D

申请日：1968-04-29

Applicant: WESTINGHOUSE ELECTRIC CORP

Inventor： ENGEL JOSEPH C

IPC: H02M3/338 ,  H05B41/282 ,  H05B41/298 ,  H03B7/06 ,  H05B41/18 ,  H05B41/29

CPC classification number: H05B41/2983 ,  H02M3/338 ,  H05B41/2821 ,  Y10S315/02 ,  Y10S315/07

公开(公告)号：US20170142794A1

公开(公告)日：2017-05-18

申请号：US15141419

申请日：2016-04-28

Applicant: Delta Electronics, Inc.

Inventor： Ching-Ho CHOU ,  Yung-Chuan LU

IPC: H05B33/08 ,  H05B41/298 ,  H05B41/392

CPC classification number: H05B33/0845 ,  H05B33/0815 ,  H05B33/0887 ,  H05B37/02 ,  H05B41/2828 ,  H05B41/2983 ,  H05B41/3921

Abstract: A dimmable instant-start ballast for a plurality of LED lamps and/or a plurality of fluorescent lamps is provided, which includes an isolated dimming interface, a duty control device, a dimming switch, and an inverter circuit. The isolated dimming interface receives a dimming signal to generate a dimming voltage. The duty control device generates an operation signal according to the dimming voltage. The dimming switch periodically couples a first node to a ground according to the operation signal. The inverter circuit receives a rectified voltage and is coupled to the first node. When the first node is coupled to the ground terminal, the inverter circuit provides a lamp current for the LED lamps and/or the fluorescent lamps.

公开(公告)号：US09030117B2

公开(公告)日：2015-05-12

申请号：US13548257

申请日：2012-07-13

Applicant: Paolo De Anna ,  Ilan D'Incà

Inventor： Paolo De Anna ,  Ilan D'Incà

IPC: H05B37/00 ,  H05B39/00 ,  H05B41/14 ,  H05B41/16 ,  H05B41/24 ,  H05B37/02 ,  H05B33/08 ,  H05B41/28 ,  H05B41/285 ,  H05B41/292 ,  H05B41/298 ,  H02M3/335

CPC classification number: H05B37/02 ,  H02M3/335 ,  H05B33/0815 ,  H05B33/0884 ,  H05B41/28 ,  H05B41/2853 ,  H05B41/2923 ,  H05B41/2983

Abstract: In various embodiments, a method for powering light sources from a input power supply through a converter circuit is provided including a primary side and a secondary side separated by a galvanic barrier, wherein the primary side includes a power factor control block with an output capacitor. The method may include providing save circuitry on said secondary side for saving operational data of the converter upon failure of said input power supply; and powering said save circuitry during saving said operational data with energy derived from said output capacitor of said power factor control block.

Abstract translation: 在各种实施例中，提供了一种用于通过转换器电路从输入电源供电光源的方法，包括由电隔离层隔开的初级侧和次级侧，其中初级侧包括具有输出电容器的功率因数控制块。 该方法可以包括在所述次级侧提供保存电路，以便在所述输入电源故障时保存转换器的操作数据; 以及在利用从所述功率因数控制块的所述输出电容器获得的能量来保存所述操作数据期间为所述保存电路供电。

公开(公告)号：US08138685B2

公开(公告)日：2012-03-20

申请号：US12539624

申请日：2009-08-12

Applicant: Chung-Che Yu ,  Shian-Sung Shiu ,  Hai-Po Li

Inventor： Chung-Che Yu ,  Shian-Sung Shiu ,  Hai-Po Li

IPC: G05F1/00 ,  H05B37/02 ,  H05B39/04 ,  H05B41/36

CPC classification number: H02M1/36 ,  H05B33/0887 ,  H05B41/2983 ,  Y10S315/05

Abstract: A controller which receives electric power required for operating through a driving voltage terminal and controls a converting circuit to convert an input voltage into an output voltage is provided. The controller is latched to stop providing a part or all of functions until the input voltage is removed. Therefore, the issues of the converting circuit in related arts in shortened life-span and safety of users due to can be avoided in the present invention.

Abstract translation: 提供一种控制器，其接收通过驱动电压端子操作所需的电力并控制转换电路将输入电压转换为输出电压。 控制器被锁定以停止提供部分或全部功能，直到输入电压被去除。 因此，在本发明中可以避免相关技术中的转换电路在缩短使用寿命和安全性方面的问题。

公开(公告)号：US07469940B2

公开(公告)日：2008-12-30

申请号：US11951839

申请日：2007-12-06

Applicant: Yiyoung Tony Sun ,  Takeshi Goriki ,  Kenichi Fukuda

Inventor： Yiyoung Tony Sun ,  Takeshi Goriki ,  Kenichi Fukuda

IPC: G05F1/00 ,  H02H3/00

CPC classification number: H05B41/2983

Abstract: A method and apparatus for protecting a discharge lamp lighting device from damage due to mis-wiring of a source of electrical power to the discharge lamp lighting device. The protection apparatus includes a detector, a comparer and an inhibitor. The detector samples at least one monitor point associated with the discharge lamp lighting device to obtain at least one detection voltage. The comparer compares the at least one detection voltage with a reference voltage. The inhibitor inhibits an operation of the discharge lamp lighting device when the comparer determines that a mis-wiring of the source of electrical power to the discharge lamp lighting device exists.

Abstract translation: 一种用于保护放电灯点亮装置免受由放电灯点亮装置引起的电源的误配的损坏的方法和装置。 保护装置包括检测器，比较器和抑制器。 检测器对与放电灯点亮装置相关联的至少一个监测点进行采样以获得至少一个检测电压。 比较器将至少一个检测电压与参考电压进行比较。 当比较器确定存在对放电灯点亮装置的电力源的错误布线时，抑制器抑制放电灯点亮装置的操作。