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1. 发明申请

WO2008130840A1 COMMUNICATION CIRCUIT FOR A DIGITAL ELECTRONIC DIMMING BALLAST 审中-公开
标题翻译：数字电子调光电路的通讯电路
公开(公告)号：WO2008130840A1
公开(公告)日：2008-10-30
申请号：PCT/US2008/059662
申请日：2008-04-08
申请人： LUTRON ELECTRONICS COMPANY, INC. , CHITTA, Venkatesh , DVORKIN, Elik , VESKOVIC, Dragan
发明人： CHITTA, Venkatesh , DVORKIN, Elik , VESKOVIC, Dragan
IPC分类号： H05B37/02 , H04L25/02
CPC分类号： H05B37/0254 , H04L25/028
摘要： 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.
摘要翻译：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。

2. 发明公开

EP2556728A2 METHOD OF CONTROLLING AN ELECTRICAL DIMMING BALLAST DURING LOW TEMPERATURE CONDITIONS 审中-公开
标题翻译：一种用于控制电动DIMMVORSCHALTGERÄTS期间低温条件
公开(公告)号：EP2556728A2
公开(公告)日：2013-02-13
申请号：EP11716108.3
申请日：2011-04-06
申请人： Lutron Electronics Company, Inc.
发明人： CHITTA, Venkatesh , OZBEK, Mehmet , QUAYLE, Jonathan, Robert , TAIPALE, Mark, S. , VESKOVIC, Dragan
IPC分类号： H05B41/392
CPC分类号： H05B41/3921 , H05B41/3925
摘要： An electronic ballast circuit for driving a gas discharge lamp is operable to control the lamp to avoid flicking and flashing of the intensity of the lamp during low temperature conditions. The ballast circuit includes an inverter circuit for receiving a DC bus voltage and for generating a high-frequency output voltage, a resonant tank circuit for receiving the high-frequency output voltage and generating a sinusoidal voltage for driving said lamp, and a control circuit operatively coupled to the inverter circuit for adjusting an intensity of the lamp between a minimum intensity and a maximum intensity. The control circuit receives a control signal representative of a lamp temperature of the lamp, and increases the minimum intensity of the lamp if the lamp temperature of the lamp drops below a cold temperature threshold. In addition, the ballast circuit may also include a temperature sensing circuit operable to generate the control signal representative of the lamp temperature of the lamp.

3. 发明授权

EP2140734B1 COMMUNICATION CIRCUIT FOR A DIGITAL ELECTRONIC DIMMING BALLAST 有权
标题翻译：通信电路对数字电子VERDUNKELUNGSVORSCHALTGERÄT
公开(公告)号：EP2140734B1
公开(公告)日：2012-09-12
申请号：EP08745299.1
申请日：2008-04-08
申请人： Lutron Electronics Company, Inc.
发明人： CHITTA, Venkatesh , DVORKIN, Elik , VESKOVIC, Dragan
IPC分类号： H05B37/02 , H04L25/02
CPC分类号： H05B37/0254 , H04L25/028

4. 发明公开

EP2140734A1 COMMUNICATION CIRCUIT FOR A DIGITAL ELECTRONIC DIMMING BALLAST 有权
标题翻译：通信电路对数字电子VERDUNKELUNGSVORSCHALTGERÄT
公开(公告)号：EP2140734A1
公开(公告)日：2010-01-06
申请号：EP08745299.1
申请日：2008-04-08
申请人： Lutron Electronics Company, Inc.
发明人： CHITTA, Venkatesh , DVORKIN, Elik , VESKOVIC, Dragan
IPC分类号： H05B37/02 , H04L25/02
CPC分类号： H05B37/0254 , H04L25/028
摘要： 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.

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