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公开(公告)号：US20060091818A1
公开(公告)日：2006-05-04
申请号：US10982379
申请日：2004-11-04
IPC分类号： H05B39/04
CPC分类号： H05B41/42 , H05B37/0263 , H05B41/2853
摘要： An electronic ballast (10) for powering at least one gas discharge lamp (30) includes a current-fed resonant inverter (300) and a load shed circuit (600). Inverter (300) ordinarily powers the lamp at a first level. When a load shed command is sent by the electric utility and received by an associated load shed receiver within the ballast (10), load shed circuit (600) causes the inverter to reduce the lamp power from the first level to a second level. Preferably, load shed circuit (600) includes an isolation circuit (620) and a bidirectional switch (640) that is coupled in parallel with a return ballasting capacitor (388) within inverter (300). In the absence of a load shed command, bidirectional switch (640) effectively shunts return ballasting capacitor (388), which causes the lamp to be powered at the first level. In response to a load shed command, bidirectional switch (640) ceases to shunt return ballasting capacitor (388), thereby causing the lamp power to be reduced to the second level.
摘要翻译： 用于为至少一个气体放电灯（30）供电的电子镇流器（10）包括电流馈送谐振逆变器（300）和负载脱落电路（600）。 逆变器（300）通常为第一级供电。 当负载脱落指令由电力公司发送并由镇流器（10）内的相关联的负载端接收器接收时，负载脱落电路（600）使逆变器将灯功率从第一电平降低到第二电平。 优选地，负载脱落电路（600）包括与逆变器（300）内的回流镇流电容器（388）并联耦合的隔离电路（620）和双向开关（640）。 在没有负载切换命令的情况下，双向开关（640）有效地分流回流镇流电容器（388），这导致灯在第一级被供电。 响应于负载脱落命令，双向开关（640）停止分流回流镇流电容器（388），从而使灯泡功率降低到第二水平。
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公开(公告)号：US20120161655A1
公开(公告)日：2012-06-28
申请号：US13332621
申请日：2011-12-21
申请人： Robert Martin , Carlos Becerra , Joseph Parisella , Paul Salvi
发明人： Robert Martin , Carlos Becerra , Joseph Parisella , Paul Salvi
IPC分类号： H05B37/02
CPC分类号： H05B41/2858
摘要： A ballast including an inverter circuit for providing an oscillating power signal for energizing at least one lamp. The inverter circuit includes a first transistor having a first gain and a second transistor having a second gain, each configured for alternately operating between a conductive state and a non-conductive state. The power signal has a waveform cycle comprising a first pulse generated when a first transistor operates in a conductive state, and a second pulse generated when the second transistor operates in a conductive state. The integral value of the first pulse of each waveform cycle of the power signal is different from the integral value of the second pulse of each waveform cycle such that a differential relationship between the first gain and the second gain is greater than or equal to a minimum value in order to minimize lamp striations.
摘要翻译： 一种镇流器，包括用于提供用于激励至少一个灯的振荡功率信号的逆变器电路。 逆变器电路包括具有第一增益的第一晶体管和具有第二增益的第二晶体管，每个增益被配置为在导通状态和非导通状态之间交替地工作。 功率信号具有包括在第一晶体管工作在导通状态时产生的第一脉冲的波形周期，以及当第二晶体管处于导通状态时产生的第二脉冲。 功率信号的每个波形周期的第一脉冲的积分值与每个波形周期的第二脉冲的积分值不同，使得第一增益和第二增益之间的差分关系大于或等于最小值 价值，以最小化灯条纹。
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公开(公告)号：US20050067974A1
公开(公告)日：2005-03-31
申请号：US10674143
申请日：2003-09-29
IPC分类号： H05B41/28 , H05B41/285 , H05B37/02
CPC分类号： H05B41/2856 , H05B41/28 , Y10S315/05
摘要： A ballast (10) for powering at least one gas discharge lamp (52) from a three-phase AC voltage source (30) comprises a three-phase rectifier circuit (200), a high frequency filter capacitor (300), and a high frequency inverter (400). Preferably, three-phase rectifier circuit (200) is implemented by a six-diode bridge, and high frequency filter capacitor (300) can be realized by a film capacitor or a ceramic capacitor. Ballast (10) provides a high power factor and low total harmonic distortion without requiring a dedicated power factor correction circuit. Other benefits of ballast (10) include enhanced efficiency, longer life, and lower inrush current.
摘要翻译： 用于从三相AC电压源（30）向至少一个气体放电灯（52）供电的镇流器（10）包括三相整流器电路（200），高频滤波电容器（300）和高 变频器（400）。 优选地，三相整流电路（200）由六二极管电桥实现，高频滤波电容器（300）可由薄膜电容器或陶瓷电容器实现。 镇流器（10）提供高功率因数和低总谐波失真，而不需要专用功率因数校正电路。 镇流器（10）的其他优点包括提高效率，延长寿命和降低浪涌电流。
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公开(公告)号：US20140077704A1
公开(公告)日：2014-03-20
申请号：US13621358
申请日：2012-09-17
申请人： Driss Baba , Ayan Choudhury , Joseph Parisella
发明人： Driss Baba , Ayan Choudhury , Joseph Parisella
IPC分类号： H05B37/02
CPC分类号： H05B37/02 , H05B33/0845 , H05B41/2827 , H05B41/2855 , H05B41/2985
摘要： A ballast comprises an inverter having a transformer comprising a core, a primary winding, and a secondary winding for connecting to a lamp and providing voltage thereto. The ballast includes a fault condition detection circuit connected to the inverter for disabling the inverter to discontinue energization of the lamp when a fault condition occurs. The fault condition detection circuit comprises an other primary winding wound on the core of the transformer for receiving a voltage signal proportional to a voltage across the secondary winding, a voltage blocking circuit connected to the other primary winding for receiving the voltage signal from the other primary winding, and a capacitor connected between the voltage blocking circuit and ground potential. The voltage blocking circuit is configured to selectively conduct and block the received voltage signal as a function of the frequency of the received voltage signal.
摘要翻译： 镇流器包括具有变压器的逆变器，变压器包括用于连接到灯并提供电压的铁芯，初级绕组和次级绕组。 镇流器包括连接到逆变器的故障状态检测电路，用于当发生故障时禁止逆变器停止灯的通电。 故障状态检测电路包括缠绕在变压器的磁芯上的另一个初级绕组，用于接收与次级绕组两端的电压成比例的电压信号，连接到另一个初级绕组的电压阻断电路，用于从另一个初级绕组接收电压信号 绕组和连接在电压阻断电路和地电位之间的电容器。 电压阻断电路被配置为根据接收的电压信号的频率选择性地导通和阻断接收的电压信号。
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公开(公告)号：US20050269972A1
公开(公告)日：2005-12-08
申请号：US11096008
申请日：2005-03-31
IPC分类号： H05B37/02 , H05B41/285
CPC分类号： H05B41/2855
摘要： An electronic ballast (10) for powering a lamp load comprising an even number of gas discharge lamps (30,32, . . . ,34,36) includes an inverter (300), an output circuit (400), and a protection circuit (500). During operation, protection circuit (500) disables the inverter (300) in response to an end-of-lamp-life condition that is characterized by a predetermined imbalance in the operating current provided to each of the even number of lamps. Preferably, the output circuit (400) includes a current-sensing transformer (480) for detecting the predetermined imbalance, and the protection circuit (500) includes a silicon-controlled rectifier (530) for disabling the inverter (300).
摘要翻译： 包括偶数个气体放电灯（30,32，...，34,36）的灯负载供电的电子镇流器（10）包括逆变器（300），输出电路（400）和保护电路 （500）。 在操作期间，保护电路（500）响应于终止灯寿命状态而禁用逆变器（300），其特征在于为每个偶数个灯提供的工作电流的预定不平衡。 优选地，输出电路（400）包括用于检测预定不平衡的电流检测变压器（480），并且保护电路（500）包括用于禁用逆变器（300）的硅控整流器（530）。
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公开(公告)号：US09084304B2
公开(公告)日：2015-07-14
申请号：US13621358
申请日：2012-09-17
申请人： Driss Baba , Ayan Choudhury , Joseph Parisella
发明人： Driss Baba , Ayan Choudhury , Joseph Parisella
CPC分类号： H05B37/02 , H05B33/0845 , H05B41/2827 , H05B41/2855 , H05B41/2985
摘要： A ballast comprises an inverter having a transformer comprising a core, a primary winding, and a secondary winding for connecting to a lamp and providing voltage thereto. The ballast includes a fault condition detection circuit connected to the inverter for disabling the inverter to discontinue energization of the lamp when a fault condition occurs. The fault condition detection circuit comprises an other primary winding wound on the core of the transformer for receiving a voltage signal proportional to a voltage across the secondary winding, a voltage blocking circuit connected to the other primary winding for receiving the voltage signal from the other primary winding, and a capacitor connected between the voltage blocking circuit and ground potential. The voltage blocking circuit is configured to selectively conduct and block the received voltage signal as a function of the frequency of the received voltage signal.
摘要翻译： 镇流器包括具有变压器的逆变器，变压器包括用于连接到灯并提供电压的铁芯，初级绕组和次级绕组。 镇流器包括连接到逆变器的故障状态检测电路，用于当发生故障时禁止逆变器停止灯的通电。 故障状态检测电路包括缠绕在变压器的磁芯上的另一个初级绕组，用于接收与次级绕组两端的电压成比例的电压信号，连接到另一个初级绕组的电压阻断电路，用于从另一个初级绕组接收电压信号 绕组和连接在电压阻断电路和地电位之间的电容器。 电压阻断电路被配置为根据接收的电压信号的频率选择性地导通和阻断接收的电压信号。
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公开(公告)号：US20050212638A1
公开(公告)日：2005-09-29
申请号：US10807797
申请日：2004-03-24
CPC分类号： H05K3/308 , H01F5/04 , H01F27/04 , H01F27/292 , H01F38/10 , H01F41/076 , H05K2201/10757
摘要： A coil bobbin (10) has a housing (12) having a floor (14) with at least one electrical lead-in (16) projecting therethrough for attachment to a printed circuit board (18). The at least one electrical lead-in (16) is provided with thermal-strain relief (20) between said floor (14) and the printed circuit board (18). In a preferred embodiment of the invention the strain relief takes the form of a loop formed in the lead-in.
摘要翻译： 线圈骨架（10）具有具有底板（14）的壳体（12），其中至少一个电引入件（16）突出穿过其中，用于附接到印刷电路板（18）。 所述至少一个电引入件（16）在所述底板（14）和所述印刷电路板（18）之间设置有热应变浮雕（20）。 在本发明的一个优选实施例中，应变消除采用在引入部中形成的环的形式。
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