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公开(公告)号:US20120112636A1
公开(公告)日:2012-05-10
申请号:US13384005
申请日:2010-06-30
申请人: Yuhong Fang , Sree Venkit , Sanjaya Kumar Pradhan , Alejandro Lopez , George Grouev , Arun Ganesh , Bruce Rhodes
发明人: Yuhong Fang , Sree Venkit , Sanjaya Kumar Pradhan , Alejandro Lopez , George Grouev , Arun Ganesh , Bruce Rhodes
IPC分类号: H05B41/298
CPC分类号: H05B41/295 , H05B41/2985
摘要: An electronic ballast and startup method including an electronic ballast operably connected to a lamp having a lamp filament, the electronic ballast having a timer (110) generating an inverter control signal (112) and a preheat control signal (114); a converter (120) receiving AC power and generating DC power (122); a self-oscillating inverter (130) receiving DC power (122) and being operable to provide lamp power (132) to the lamp, the self-oscillating inverter (130) being responsive to the inverter control signal (112); and a filament preheater (140) receiving DC power (122) and being operable to provide filament power (142) to the lamp filament, the filament preheater (140) being responsive to the preheat control signal (114). When AC power is initially applied, preheat control signal (114) directs the filament preheater (140) to provide filament power (142), and inverter control signal (112) directs the self-oscillating inverter (130) not to provide lamp power (132).
摘要翻译: 一种电子镇流器和启动方法,包括可操作地连接到具有灯丝的灯的电子镇流器,所述电子镇流器具有产生逆变器控制信号(112)的定时器(110)和预热控制信号(114); 接收AC电力并产生DC电力的转换器(120); 自振荡逆变器(130),其接收直流电力(122)并且可操作以向所述灯提供灯功率(132),所述自振荡逆变器(130)响应于所述逆变器控制信号(112); 以及灯丝预热器(140),其接收直流电力(122)并且可操作以将灯丝功率(142)提供给灯丝,灯丝预热器(140)响应于预热控制信号(114)。 当最初施加交流电源时,预热控制信号(114)引导灯丝预热器(140)提供灯丝功率(142),逆变器控制信号(112)引导自振荡逆变器(130)不提供灯功率 132)。
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公开(公告)号:US09210783B2
公开(公告)日:2015-12-08
申请号:US13384005
申请日:2010-06-30
申请人: Yuhong Fang , Sree Venkit , Sanjaya Kumar Pradhan , Alejandro Lopez , George Grouev , Arun Ganesh , Bruce Rhodes
发明人: Yuhong Fang , Sree Venkit , Sanjaya Kumar Pradhan , Alejandro Lopez , George Grouev , Arun Ganesh , Bruce Rhodes
IPC分类号: H01J7/24 , H05B41/295 , H05B41/298
CPC分类号: H05B41/295 , H05B41/2985
摘要: An electronic ballast and startup method including an electronic ballast operably connected to a lamp having a lamp filament, the electronic ballast having a timer (110) generating an inverter control signal (112) and a preheat control signal (114); a converter (120) receiving AC power and generating DC power (122); a self-oscillating inverter (130) receiving DC power (122) and being operable to provide lamp power (132) to the lamp, the self-oscillating inverter (130) being responsive to the inverter control signal (112); and a filament preheater (140) receiving DC power (122) and being operable to provide filament power (142) to the lamp filament, the filament preheater (140) being responsive to the preheat control signal (114). When AC power is initially applied, preheat control signal (114) directs the filament preheater (140) to provide filament power (142), and inverter control signal (112) directs the self-oscillating inverter (130) not to provide lamp power (132).
摘要翻译: 一种电子镇流器和启动方法,包括可操作地连接到具有灯丝的灯的电子镇流器,所述电子镇流器具有产生逆变器控制信号(112)的定时器(110)和预热控制信号(114); 接收AC电力并产生DC电力的转换器(120); 自振荡逆变器(130),其接收直流电力(122)并且可操作以向所述灯提供灯功率(132),所述自振荡逆变器(130)响应于所述逆变器控制信号(112); 以及灯丝预热器(140),其接收直流电力(122)并且可操作以将灯丝功率(142)提供给灯丝,灯丝预热器(140)响应于预热控制信号(114)。 当最初施加交流电源时,预热控制信号(114)引导灯丝预热器(140)提供灯丝功率(142),逆变器控制信号(112)引导自振荡逆变器(130)不提供灯功率 132)。
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公开(公告)号:US07486031B2
公开(公告)日:2009-02-03
申请号:US10537008
申请日:2003-11-18
IPC分类号: H05B37/02
CPC分类号: H05B41/2985 , H05B41/2858 , H05B41/2988
摘要: A striation correction circuit 300 is arranged to apply a first striation correction current to the first fluorescent lamp L1 and a second striation correction current to the second fluorescent lamp L2. A first voltage appearing across the first fluorescent tube L1 due to the first striation correction current is substantially similar in magnitude but has inverted polarity with respect to a second voltage across the second fluorescent tube L2 due to the second striation correction current. Detection of an end-of-life condition of a fluorescent lamp is facilitated.
摘要翻译: 条纹校正电路300被配置为向第一荧光灯L1施加第一条纹校正电流,并向第二荧光灯L2施加第二条纹校正电流。 由于第一条纹校正电流而在第一荧光管L1上出现的第一电压在幅度上基本相似,但是由于第二条纹校正电流而相对于第二荧光管L2上的第二电压具有反相极性。 荧光灯的寿命终止状况的检测变得容易。
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