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    • 1. 发明申请
    • METHOD OF CONTROLLING AN OPERATING FREQUENCY OF AN INVERTER CIRCUIT IN AN ELECTRONIC DIMMING BALLAST
    • 在电子调光镇流器中控制逆变器电路工作频率的方法
    • WO2012024383A2
    • 2012-02-23
    • PCT/US2011048063
    • 2011-08-17
    • LUTRON ELECTRONICS COCHRISTENSEN GRAHAM LMEROLA REBECCA ASHEARER THOMAS MVESKOVIC DRAGAN
    • CHRISTENSEN GRAHAM LMEROLA REBECCA ASHEARER THOMAS MVESKOVIC DRAGAN
    • H05B41/282H05B41/36
    • H05B41/2856H05B41/2828
    • An electronic ballast having an inverter circuit for driving a gas discharge lamp prevents allows some hard switching to occur in the inverter circuit in order to ensure adequate ballasting impedance to provide stable operation of the lamp, but not enough hard switching to generate excessive power loss in the inverter circuit. The inverter circuit comprises two switching devices that are coupled in series between a DC bus voltage and circuit common and are rendered conductive on a complementary basis, such that a high-frequency output voltage is generated at the junction of the switching devices. When the intensity of the lamp is at or near a low-end intensity, an operating frequency of the high-frequency output voltage is controlled to a low-end frequency that is low enough to ensure stable operation of the lamp and to allow some hard switching to occur in the switching devices, but high enough to prevent excessive power loss due to the hard switching in the switching devices.
    • 具有用于驱动气体放电灯的逆变器电路的电子镇流器防止在逆变器电路中发生一些硬切换,以便确保足够的镇流阻抗以提供灯的稳定操作,但是没有足够的硬切换来产生过多的功率损失 逆变器电路。 逆变器电路包括两个开关装置,其串联耦合在DC总线电压和电路公共端之间,并且在互补的基础上导通,使得在开关装置的连接处产生高频输出电压。 当灯的强度处于或接近低端强度时,将高频输出电压的操作频率控制为足够低的低端频率,以确保灯的稳定操作并允许一些困难 在交换设备中发生切换,但是足够高以防止由于交换设备中的硬切换导致的过度的功率损失。
    • 2. 发明申请
    • COMMUNICATION CIRCUIT FOR A DIGITAL ELECTRONIC DIMMING BALLAST
    • 数字电子调光电路的通讯电路
    • WO2008130840A1
    • 2008-10-30
    • PCT/US2008/059662
    • 2008-04-08
    • LUTRON ELECTRONICS COMPANY, INC.CHITTA, VenkateshDVORKIN, ElikVESKOVIC, Dragan
    • CHITTA, VenkateshDVORKIN, ElikVESKOVIC, Dragan
    • H05B37/02H04L25/02
    • H05B37/0254H04L25/028
    • A communication circuit for an electronic dimming ballast provides high-voltage miswire protection and improved rise and fall times of a transmitted digital signal. The electronic dimming ballast comprises a control circuit, which is coupled to a digital communication link, for example, a DALI communication link, via the communication circuit. The communication circuit comprises a receiving circuit for detecting when the digital ballast communication link is shorted and for providing a received digital message to the control circuit. The communication circuit also comprises a transmitting circuit for shorting the communication link in response to the control circuit. The communication circuit also includes a high-voltage fault protection circuit for protecting the circuitry of the communication circuit if the communication circuit high- voltage mains voltages. The communication circuit is operable to reliably transmit digital messages having improved rise and fall times. The communication circuit draws acceptable amounts of current when the communication link is alternatively in idle and active states.
    • 用于电子调光镇流器的通信电路提供高电压的不连线保护和改善发射的数字信号的上升和下降时间。 电子调光镇流器包括经由通信电路耦合到数字通信链路(例如,DALI通信链路)的控制电路。 通信电路包括一个接收电路,用于检测数字镇流器通信链路何时被短路,并向接收到的数字消息提供给控制电路。 通信电路还包括用于响应于控制电路使通信链路短路的发送电路。 通信电路还包括用于保护通信电路的电路的高压故障保护电路,如果通信电路是高压电源电压。 通信电路可操作地可靠地发送具有改善的上升和下降时间的数字消息。 当通信链路交替地处于空闲和活动状态时,通信电路吸收可接受的电流量。
    • 3. 发明申请
    • ELECTRONIC BALLAST HAVING MISSING LAMP DETECTION
    • 具有缺陷灯检测的电子镇流器
    • WO2006119082A3
    • 2007-05-31
    • PCT/US2006016382
    • 2006-04-28
    • LUTRON ELECTRONICS COCHITTA VENKATESHVESKOVIC DRAGANTAIPALE MARK
    • TAIPALE MARK
    • H05B41/16
    • H05B41/2855
    • An electronic ballast for driving a plurality of gas discharge lamps in parallel includes a rectifier to convert an AC mains input voltage to a rectified voltage, a filter circuit to convert the rectified voltage to a substantially DC bus voltage, an inverter to convert the DC bus voltage to a high-frequency AC voltage for driving the lamp, and an output stage for coupling the high-frequency AC voltage to the lamps. The ballast also includes a plurality of balancing transformers coupled to the lamps for balancing the currents in the lamps. When one of the parallel lamps is missing or faulty, a substantially large voltage is produced across one or more of the balancing transformers. This large voltage is detected by a missing-lamp detect circuit that provides a control signal to a ballast control circuit. In response to a detected missing-lamp condition, the control circuit stops the ballast from driving the lamps. Optionally, the ballast control circuit can transmit a message regarding the missing-lamp condition via an external communication link.
    • 用于并行驱动多个气体放电灯的电子镇流器包括将AC电源输入电压转换为整流电压的整流器,将整流电压转换为基本上DC总线电压的滤波电路,将DC总线 电压到用于驱动灯的高频AC电压,以及用于将高频AC电压耦合到灯的输出级。 镇流器还包括耦合到灯的多个平衡变压器,用于平衡灯中的电流。 当并联灯之一丢失或故障时,跨越一个或多个平衡变压器产生大的电压。 这种大的电压由向镇流器控制电路提供控制信号的缺失灯检测电路检测。 响应于检测到的缺失灯状况,控制电路停止镇流器驱动灯。 可选地,镇流器控制电路可以经由外部通信链路发送关于缺少灯状况的消息。
    • 4. 发明申请
    • DISTRIBUTED INTELLIGENCE BALLAST SYSTEM AND EXTENDED LIGHTING CONTROL PROTOCOL
    • 分布式智能放映系统和扩展照明控制协议
    • WO2006065653A3
    • 2006-11-02
    • PCT/US2005044646
    • 2005-12-07
    • LUTRON ELECTRONICS COVESKOVIC DRAGANANSELMO ROBERTCASH AUDWIN WSKVORETZ MATTHEW A
    • VESKOVIC DRAGANANSELMO ROBERTCASH AUDWIN WSKVORETZ MATTHEW A
    • H05B37/02H05B41/38
    • H05B37/0254H05B41/38
    • A ballast for use in a multi-ballast lighting system wherein the ballasts are coupled together by a digital communication network. The ballast comprises a power circuit portion for providing an electrical current to power a lamp. The ballast further includes a sensor input circuit for receiving at least one sensor input from a sensor device, a processor receiving an input from the sensor input circuit and providing control signals to control the operation of the ballast, and a communication port coupled to the processor and to the communication network for exchanging data. The ballast processor is operative to receive a serial data that has a portion defining whether the message is in a first or a second format, the first format comprising a DALI standard format and the second format comprising a format providing extended functionality. The ballast processor is capable of processing messages in either the first or second formats.
    • 一种用于多镇流照明系统的镇流器,其中镇流器通过数字通信网络耦合在一起。 镇流器包括用于提供电流来为灯供电的电源电路部分。 所述镇流器还包括用于接收来自传感器装置的至少一个传感器输入的传感器输入电路,处理器从所述传感器输入电路接收输入并提供控制信号以控制所述镇流器的操作,以及连接到所述处理器的通信端口 以及用于交换数据的通信网络。 镇流器处理器可操作以接收具有定义消息是处于第一还是第二格式的部分的串行数据,第一格式包括DALI标准格式,第二格式包括提供扩展功能的格式。 镇流器处理器能够以第一或第二格式处理消息。
    • 5. 发明申请
    • DISTRIBUTED INTELLIGENCE BALLAST SYSTEM AND EXTENDED LIGHTING CONTROL PROTOCOL
    • 分布式智能压缩系统和扩展照明控制协议
    • WO2006065653A2
    • 2006-06-22
    • PCT/US2005/044646
    • 2005-12-07
    • LUTRON ELECTRONICS CO., INC.VESKOVIC, DraganANSELMO, RobertCASH, Audwin W.SKVORETZ, Matthew A.
    • VESKOVIC, DraganANSELMO, RobertCASH, Audwin W.SKVORETZ, Matthew A.
    • H05B37/02
    • H05B37/0254H05B41/38
    • A ballast for use in a multi-ballast lighting system wherein the ballasts are coupled together by a digital communication network. The ballast comprises a power circuit portion for providing an electrical current to power a lamp. The ballast further includes a sensor input circuit for receiving at least one sensor input from a sensor device, a processor receiving an input from the sensor input circuit and providing control signals to control the operation of the ballast, and a communication port coupled to the processor and to the communication network for exchanging data. The ballast processor is operative to receive a serial data that has a portion defining whether the message is in a first or a second format, the first format comprising a DALI standard format and the second format comprising a format providing extended functionality. The ballast processor is capable of processing messages in either the first or second formats.
    • 用于多镇流器照明系统的镇流器,其中镇流器通过数字通信网络耦合在一起。 镇流器包括用于提供电流以给灯供电的电源电路部分。 镇流器进一步包括用于接收来自传感器装置的至少一个传感器输入的传感器输入电路,接收来自传感器输入电路的输入并提供控制信号以控制镇流器的操作的处理器,以及耦合到处理器的通信端口 和通信网络交换数据。 镇流器处理器可操作以接收具有定义消息是处于第一格式还是第二格式的部分的串行数据,第一格式包括DALI标准格式并且第二格式包括提供扩展功能的格式。 镇流器处理器能够处理第一种或第二种格式的消息。
    • 8. 发明申请
    • BALLAST HAVING MULTIPLE CIRCUIT FAILURE PROTECTION AND METHOD FOR BALLAST CIRCUIT PROTECTION
    • 具有多电路故障保护的电压和用于电涌保护的方法
    • WO2006065606A1
    • 2006-06-22
    • PCT/US2005/044346
    • 2005-12-08
    • LUTRON ELECTRONICS CO., INC.MOSEBROOK, Donald R.VESKOVIC, Dragan
    • MOSEBROOK, Donald R.VESKOVIC, Dragan
    • H05B41/285H05B41/292H05B41/298H05B37/02
    • H05B41/2856Y10S315/07
    • A ballast for a gas discharge lamp comprising a first circuit portion for providing power to a lighting load and a second circuit portion for processing data exchanged with a communication link, the first circuit portion receiving power from an AC main supply for conversion to a form suitable to supply power to the lamp, and the second circuit portion having a power supply supplied from the AC main supply, the power supply being coupled at the input of the AC main supply to the first circuit portion, further comprising a first protection circuit coupled in series with the AC main supply for protecting the first and second circuit portions in the event of an electrical circuit failure leading to an overcurrent condition, the power supply for the second circuit portion being coupled such that it is protected by the first protection circuit; further comprising a second protection circuit disposed in series with the first circuit portion and providing protection only in the event of electrical failure leading to an overcurrent condition in the first circuit portion; the second protection circuit will discontinue the supply of current to the first circuit portion, thereby preventing an overcurrent in the first protection circuit that would cause the first protection to interrupt current, and thereby allowing the first protection circuit to continue to supply electrical current to the second circuit portion.
    • 一种用于气体放电灯的镇流器,包括用于向照明负载提供电力的第一电路部分和用于处理与通信链路交换的数据的第二电路部分,所述第一电路部分从AC主电源接收电力以转换为适合的形式 为了向灯供电,第二电路部分具有从AC主电源供应的电源,该电源在AC主电源的输入处耦合到第一电路部分,还包括耦合在第一电路部分中的第一保护电路 具有AC主电源的串联电路,用于在导致过电流状况的电路故障的情况下保护第一和第二电路部分,第二电路部分的电源被耦合,使得它被第一保护电路保护; 还包括与所述第一电路部分串联设置的第二保护电路,并且仅在导致第一电路部分中的过电流状况的电气故障的情况下提供保护; 第二保护电路将停止向第一电路部分提供电流,从而防止第一保护电路中将导致第一保护中断电流的过电流,从而允许第一保护电路继续向第一保护电路提供电流 第二电路部分。
    • 10. 发明申请
    • LOAD CONTROL DEVICE FOR A LIGHT-EMITTING DIODE LIGHT SOURCE
    • 用于发光二极管光源的负载控制装置
    • WO2012125625A1
    • 2012-09-20
    • PCT/US2012/028906
    • 2012-03-13
    • LUTRON ELECTRONICS CO., INC.VESKOVIC, Dragan
    • VESKOVIC, Dragan
    • H05B33/08
    • H05B33/0815H05B33/0824H05B33/0848
    • An LED driver for controlling the intensity of an LED light source includes a power converter circuit for generating a DC bus voltage, an LED drive circuit for receiving the bus voltage and controlling a load current through, and thus the intensity of, the LED light source, and a controller operatively coupled to the power converter circuit and the LED drive circuit. The LED drive circuit comprises a controllable-impedance circuit adapted to be coupled in series with the LED light source. The controller adjusts the magnitude of the bus voltage to a target bus voltage and generates a drive signal for controlling the controllable-impedance circuit. To adjust the intensity of the LED light source, the controller controls both the magnitude of the load current and the magnitude of the regulator voltage. The controller controls the magnitude of the regulator voltage by simultaneously maintaining the magnitude of the drive signal constant and adjusting the target bus voltage.
    • 用于控制LED光源的强度的LED驱动器包括用于产生DC总线电压的功率转换器电路,用于接收总线电压并控制负载电流的LED驱动电路,并且因此控制LED光源的强度 以及可操作地耦合到功率转换器电路和LED驱动电路的控制器。 LED驱动电路包括适于与LED光源串联耦合的可控阻抗电路。 控制器将总线电压的大小调整为目标总线电压,并产生用于控制可控阻抗电路的驱动信号。 为了调整LED光源的强度,控制器控制负载电流的大小和调节器电压的大小。 控制器通过同时保持驱动信号的幅值恒定并调节目标总线电压来控制调节器电压的幅度。