-
1.发明授权Method and apparatus for measuring operating characteristics in a load control device 有权用于测量负载控制装置中的工作特性的方法和装置公开(公告)号：US08629624B2
公开(公告)日：2014-01-14
申请号：US13212556
申请日：2011-08-18
申请人： Venkatesh Chitta , Jonathan Robert Quayle , Alexander J. Rovnan , Mark S. Taipale , Dragan Veskovic
发明人： Venkatesh Chitta , Jonathan Robert Quayle , Alexander J. Rovnan , Mark S. Taipale , Dragan Veskovic
IPC分类号： H05B37/02 , H05B39/04 , H05B41/36 , H05B37/00 , H05B39/00 , H05B41/14 , H05B41/16 , H05B41/24 , H05B41/00
CPC分类号： H05B41/24 , H05B37/00 , H05B41/295 , H05B41/38
摘要： A load control device, such as an electronic ballast, for controlling the power delivered from an AC power source to an electrical load, such as one or more fluorescent lamps, comprises a power converter having an inductor and a power switching device coupled to the inductor, a load control circuit adapted to be coupled to the electrical load, and a control circuit operable to calculate an average input power of the load control device. The control circuit may be operable to calculate a cumulative output power of the power converter while the ballast is preheating filaments of the lamps, and to subsequently determine a fault condition in the lamps in response to the calculated cumulative output power of the power converter. Further, the control circuit may be operable to transmit a digital message including the calculated average input power of the load control device.
摘要翻译： 用于控制从AC电源传递到诸如一个或多个荧光灯的电负载的功率的诸如电子镇流器的负载控制装置包括具有耦合到电感器的电感器和功率开关装置的功率转换器 ，适于耦合到所述电负载的负载控制电路，以及可操作以计算所述负载控制装置的平均输入功率的控制电路。 控制电路可以可操作以在镇流器预热灯的灯丝时计算功率转换器的累积输出功率，并且随后响应于所计算的功率转换器的累积输出功率来确定灯中的故障状况。 此外，控制电路可以用于发送包括计算出的负载控制装置的平均输入功率的数字消息。
-
2.发明申请Method and Apparatus for Measuring Operating Characteristics in a Load Control Device 有权用于测量负载控制装置中的工作特性的方法和装置公开(公告)号：US20120043900A1
公开(公告)日：2012-02-23
申请号：US13212556
申请日：2011-08-18
申请人： Venkatesh Chitta , Jonathan Robert Quayle , Alexander J. Rovnan , Mark S. Taipale , Dragan Veskovic
发明人： Venkatesh Chitta , Jonathan Robert Quayle , Alexander J. Rovnan , Mark S. Taipale , Dragan Veskovic
IPC分类号： H05B41/36
CPC分类号： H05B41/24 , H05B37/00 , H05B41/295 , H05B41/38
摘要： A load control device, such as an electronic ballast, for controlling the power delivered from an AC power source to an electrical load, such as one or more fluorescent lamps, comprises a power converter having an inductor and a power switching device coupled to the inductor, a load control circuit adapted to be coupled to the electrical load, and a control circuit operable to calculate an average input power of the load control device. The control circuit may be operable to calculate a cumulative output power of the power converter while the ballast is preheating filaments of the lamps, and to subsequently determine a fault condition in the lamps in response to the calculated cumulative output power of the power converter. Further, the control circuit may be operable to transmit a digital message including the calculated average input power of the load control device.
摘要翻译： 用于控制从AC电源传递到诸如一个或多个荧光灯的电负载的功率的诸如电子镇流器的负载控制装置包括具有耦合到电感器的电感器和功率开关装置的功率转换器 ，适于耦合到所述电负载的负载控制电路，以及可操作以计算所述负载控制装置的平均输入功率的控制电路。 控制电路可以可操作以在镇流器预热灯的灯丝时计算功率转换器的累积输出功率，并且随后响应于所计算的功率转换器的累积输出功率来确定灯中的故障状况。 此外，控制电路可以用于发送包括计算出的负载控制装置的平均输入功率的数字消息。
-
3.发明申请Method of Controlling an Electronic Dimming Ballast During Low Temperature Conditions 审中-公开在低温条件下控制电子调光镇流器的方法公开(公告)号：US20110241561A1
公开(公告)日：2011-10-06
申请号：US12955988
申请日：2010-11-30
IPC分类号： H05B41/16
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.
摘要翻译： 用于驱动气体放电灯的电子镇流器电路可操作以控制灯以避免在低温条件下灯的强度的闪烁和闪烁。 镇流器电路包括用于接收直流母线电压并用于产生高频输出电压的反相器电路，用于接收高频输出电压并产生用于驱动所述灯的正弦电压的谐振回路电路，以及可操作地控制电路的控制电路 耦合到逆变器电路，用于在最小强度和最大强度之间调节灯的强度。 控制电路接收表示灯的灯温度的控制信号，并且如果灯的灯温降低到低温阈值以下，则增加灯的最小强度。 此外，镇流器电路还可以包括温度检测电路，其可操作以产生表示灯的灯温度的控制信号。
-
公开(公告)号：US07432661B2
公开(公告)日：2008-10-07
申请号：US11120230
申请日：2005-05-02
CPC分类号： H05B41/282 , Y02B20/183
摘要： An electronic ballast for driving a gas discharge lamp includes a rectifier to convert an AC mains input voltage to a rectified voltage, a valley-fill circuit for producing a DC bus voltage, an inverter for converting the DC bus voltage to a high-frequency AC voltage for driving the lamp, a control circuit for controlling the inverter, and a flyback cat-ear power supply for supplying current to the inverter when the rectified voltage is less than a predetermined level. The flyback cat-ear power supply also provides power to the control circuit. Preferably, the flyback cat-ear power supply draws current only when the inverter is not drawing current directly from the AC mains, so as to make the input current to the ballast substantially sinusoidal. The result is a ballast having substantially improved power factor and THD. Also, the ballast operates more efficiently because the flyback cat-ear ear power supply supplies excess energy not needed by the ballast control circuitry to the inverter to be used to drive the lamp.
摘要翻译： 用于驱动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，用于产生DC总线电压的谷底填充电路，用于将DC总线电压转换为高频AC的逆变器 用于驱动灯的电压，用于控制逆变器的控制电路和用于在整流电压小于预定电平时向逆变器提供电流的回扫式猫耳电源。 反激式猫耳电源还为控制电路提供电源。 优选的是，只有当逆变器没有直接从交流电源引出电流时，回扫式猫耳电源才能产生电流，以使输入电流达到镇流器基本正弦。 结果是具有明显改善的功率因数和THD的镇流器。 此外，镇流器更有效地运行，因为回扫式耳塞式电源将镇流器控制电路不需要的多余能量提供给用于驱动灯的逆变器。
-
公开(公告)号：US07825609B2
公开(公告)日：2010-11-02
申请号：US12168977
申请日：2008-07-08
IPC分类号： G05F1/00
CPC分类号： H05B41/282 , Y02B20/183
摘要： An electronic ballast for driving a gas discharge lamp includes a rectifier to convert an AC mains input voltage to a rectified voltage, a filter circuit for producing a DC bus voltage, an inverter for converting the bus voltage to a high-frequency AC voltage for driving the lamp, an output circuit for supplying an essentially sinusoidal voltage to the lamp, a control circuit for controlling the inverter, and a flyback cat-ear power supply for powering the control circuit. The power supply supplies current to the inverter when the rectified voltage is less than a predetermined level, and draws current only when the inverter is not drawing current directly from the AC mains, so as to make the input current to the ballast substantially sinusoidal. The ballast thus has substantially improved power factor and THD, and operates more efficiently.
摘要翻译： 用于驱动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，用于产生DC总线电压的滤波器电路，用于将总线电压转换为用于驱动的高频AC电压的反相器 灯，用于向灯提供基本正弦电压的输出电路，用于控制逆变器的控制电路和用于为控制电路供电的回扫式猫耳电源。 当整流电压小于预定电平时，电源向逆变器提供电流，只有当变频器没有直接从交流电源引出电流时，才能抽取电流，以使输入电流达到镇流器基本正弦。 因此，镇流器具有显着改善的功率因数和THD，并且更有效地运行。
-
公开(公告)号：US20080315779A1
公开(公告)日：2008-12-25
申请号：US12168977
申请日：2008-07-08
IPC分类号： H05B41/36
CPC分类号： H05B41/282 , Y02B20/183
摘要： An electronic ballast for driving a gas discharge lamp includes a rectifier to convert an AC mains input voltage to a rectified voltage, a valley-fill circuit for producing a DC bus voltage, an inverter for converting the DC bus voltage to a high-frequency AC voltage for driving the lamp, a control circuit for controlling the inverter, and a flyback cat-ear power supply for supplying current to the inverter when the rectified voltage is less than a predetermined level. The flyback cat-ear power supply also provides power to the control circuit. Preferably, the flyback cat-ear power supply draws current only when the inverter is not drawing current directly from the AC mains, so as to make the input current to the ballast substantially sinusoidal. The result is a ballast having substantially improved power factor and THD. Also, the ballast operates more efficiently because the flyback cat-ear ear power supply supplies excess energy not needed by the ballast control circuitry to the inverter to be used to drive the lamp.
摘要翻译： 用于驱动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，用于产生DC总线电压的谷底填充电路，用于将DC总线电压转换为高频AC的逆变器 用于驱动灯的电压，用于控制逆变器的控制电路和用于在整流电压小于预定电平时向逆变器提供电流的回扫式猫耳电源。 反激式猫耳电源还为控制电路提供电源。 优选的是，只有当逆变器没有直接从交流电源引出电流时，回扫式猫耳电源才能产生电流，以使输入电流达到镇流器基本正弦。 结果是具有明显改善的功率因数和THD的镇流器。 此外，镇流器更有效地运行，因为回扫式耳塞式电源将镇流器控制电路不需要的多余能量提供给用于驱动灯的逆变器。
-
公开(公告)号：US20100171435A1
公开(公告)日：2010-07-08
申请号：US12714972
申请日：2010-03-01
IPC分类号： H05B37/02
CPC分类号： H05B41/2856 , H05B41/2986
摘要： The output current of a ballast is dynamically limited when an over-temperature condition is detected in the ballast according to one of (i) a step function or (ii) a combination of step and continuous functions, so as to reduce the temperature of the ballast while continuing to operate it.
摘要翻译： 当在镇流器中检测到过温条件时，镇流器的输出电流根据（i）阶跃函数或（ii）阶跃函数和连续函数的组合之一被检测，以便降低温度 镇流器，同时继续操作它。
-
公开(公告)号：US07940015B2
公开(公告)日：2011-05-10
申请号：US12714972
申请日：2010-03-01
IPC分类号： G05F1/00
CPC分类号： H05B41/2856 , H05B41/2986
摘要： The output current of a ballast is dynamically limited when an over-temperature condition is detected in the ballast according to one of (i) a step function or (ii) a combination of step and continuous functions, so as to reduce the temperature of the ballast while continuing to operate it.
摘要翻译： 当在镇流器中检测到过温条件时，镇流器的输出电流根据（i）阶跃函数或（ii）阶跃函数和连续函数的组合之一被检测，以便降低温度 镇流器，同时继续操作它。
-
9.发明授权Electronic ballast having a boost converter with an improved range of output power 有权具有升压转换器的电子镇流器具有改善的输出功率范围公开(公告)号：US07528554B2
公开(公告)日：2009-05-05
申请号：US11801860
申请日：2007-05-11
CPC分类号： H05B41/3924 , H05B41/2886 , Y02B20/202
摘要： A boost converter for an electronic dimming ballast for driving a gas discharge lamp has an increased output power range. The boost converter operates in discontinuous conduction mode when a desired intensity of the lamp is below a first threshold intensity, and operates in critical conduction mode when the desired intensity is above a second threshold intensity. The boost converter comprises a delay circuit for introducing an amount of delay into the conduction of current through the boost converter. A control circuit of the ballast is operable to drive the delay circuit and thus control the operation of the boost converter in response to the desired intensity of the lamp. The control circuit is further operable to drive the delay circuit with a pulse-width modulated signal to provide multiple amounts of delay into the operation of the boost converter.
摘要翻译： 用于驱动气体放电灯的电子调光镇流器的升压转换器具有增加的输出功率范围。 当所需灯的强度低于第一阈值强度时，升压转换器工作在不连续导通模式，并且当所需强度高于第二阈值强度时，升压转换器工作在临界导通模式。 升压转换器包括用于将一定量的延迟引入通过升压转换器的电流导通的延迟电路。 镇流器的控制电路可操作以驱动延迟电路，从而响应于所需灯的强度来控制升压转换器的操作。 控制电路还可操作以用脉冲宽度调制信号驱动延迟电路，以向升压转换器的操作提供多个延迟。
-
10.发明申请Electronic ballast having a boost converter with an improved range of output power 有权具有升压转换器的电子镇流器具有改善的输出功率范围公开(公告)号：US20080278086A1
公开(公告)日：2008-11-13
申请号：US11801860
申请日：2007-05-11
IPC分类号： G05F1/00
CPC分类号： H05B41/3924 , H05B41/2886 , Y02B20/202
摘要： A boost converter for an electronic dimming ballast for driving a gas discharge lamp has an increased output power range. The boost converter operates in discontinuous conduction mode when a desired intensity of the lamp is below a first threshold intensity, and operates in critical conduction mode when the desired intensity is above a second threshold intensity. The boost converter comprises a delay circuit for introducing an amount of delay into the conduction of current through the boost converter. A control circuit of the ballast is operable to drive the delay circuit and thus control the operation of the boost converter in response to the desired intensity of the lamp. The control circuit is further operable to drive the delay circuit with a pulse-width modulated signal to provide multiple amounts of delay into the operation of the boost converter.
摘要翻译： 用于驱动气体放电灯的电子调光镇流器的升压转换器具有增加的输出功率范围。 当所需灯的强度低于第一阈值强度时，升压转换器工作在不连续导通模式，并且当所需强度高于第二阈值强度时，升压转换器工作在临界导通模式。 升压转换器包括用于将一定量的延迟引入通过升压转换器的电流导通的延迟电路。 镇流器的控制电路可操作以驱动延迟电路，从而响应于所需灯的强度来控制升压转换器的操作。 控制电路还可操作以用脉冲宽度调制信号驱动延迟电路，以向升压转换器的操作提供多个延迟。
-
-
-
-
-
-
-
-
-
搜索结果
47 条记录 (耗时 0.023 秒)
