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公开(公告)号：US6137239A
公开(公告)日：2000-10-24
申请号：US372201
申请日：1999-08-11
IPC分类号： H05B41/24 , H05B41/282 , G05F1/00
CPC分类号： H05B41/2828 , H05B41/245 , Y02B20/186
摘要： A microprocessor controlled ballast includes a single front end and a plurality of inverters separately controlled by a single microprocessor. Lamps are operated in groups according to separate line inputs to the ballast.
摘要翻译： 微处理器控制的镇流器包括由单个微处理器单独控制的单个前端和多个逆变器。 灯具根据镇流器的单独线路输入分组运行。
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2.发明授权
公开(公告)号：US5936357A
公开(公告)日：1999-08-10
申请号：US122231
申请日：1998-07-24
IPC分类号： H05B41/392 , H05B37/02
CPC分类号： H05B41/2853 , H05B41/28 , H05B41/3925 , Y02B20/186 , Y10S315/04 , Y10S315/07
摘要： A microprocessor controlled, electronic ballast operates a lamp at nominal settings and shifts the operation of the ballast away from nominal settings to reduce interference. The shift is randomized by a test--flip--�shift! routine that prevents all ballasts from attempting the same correction at the same time. On DC input voltage, the frequency of the boost controller is varied to reduce EMI. The ballast operates in bands according to the input voltage. Some bands correspond to full brightness, some to a fixed amount of dimming, and some to a variable amount of dimming. In the event of an abrupt change in load, the microprocessor changes the frequency of the inverter, thereby reducing output power and gradually unloading the boost circuit and maintaining power to the microprocessor.
摘要翻译： 微处理器控制的电子镇流器以标称设置操作灯泡，并将镇流器的操作从标称设置移开，以减少干扰。 该移位通过一个测试触发器[shift]程序进行随机化，该程序可以防止所有镇流器同时进行相同的校正。 在直流输入电压下，升压控制器的频率变化，以减少EMI。 镇流器根据输入电压在频带中工作。 一些频带对应于全亮度，一些到一定量的调光，一些到一个可变量的调光。 在负载突然变化的情况下，微处理器改变变频器的频率，从而降低输出功率并逐渐卸载升压电路并维持微处理器的电力。
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公开(公告)号：US5539281A
公开(公告)日：1996-07-23
申请号：US376774
申请日：1995-01-23
IPC分类号： H05B41/282 , H02M3/155 , H02M7/217 , H05B41/285 , H05B41/392 , H05B37/02
CPC分类号： H05B41/2853 , H05B41/3925 , Y10S315/04 , Y10S315/07
摘要： An electronic ballast includes a converter coupled to a variable frequency inverter and a series resonant, parallel loaded output coupled to the inverter. The frequency of the inverter increases when the supply voltage from the converter decreases. The converter includes a full wave rectifier producing a first voltage and an unregulated boost circuit producing a second voltage which is combined with the first voltage to produce the supply voltage. The amount of boost, and therefore the magnitude of the supply voltage, is varied to provide dimming. Dimming is controlled mechanically, via a potentiometer, or electrically, via a control input. Dimming also occurs in response to changes in the first voltage, i.e. from changes in the voltage on an AC power line or from changes in the voltage provided by a capacitive dimmer coupled between the ballast and an AC power line.
摘要翻译： 电子镇流器包括耦合到可变频逆变器的转换器和耦合到逆变器的串联谐振并联负载输出。 当变频器的电源电压降低时，变频器的频率增加。 该转换器包括产生第一电压的全波整流器和产生与第一电压组合以产生电源电压的第二电压的未调节升压电路。 升高量以及因此的电源电压的大小被改变以提供调光。 调光通过电位计机械地或通过控制输入进行电气控制。 响应于第一电压的变化，即由交流电源线上的电压的变化或者由耦合在镇流器和交流电源线之间的电容调光器提供的电压的变化也发生调光。
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公开(公告)号：US5925990A
公开(公告)日：1999-07-20
申请号：US995278
申请日：1997-12-19
申请人： Kent E. Crouse , Ronald J. Bezdon , Michael W. Bandel , Patrick J. Keegan , Boyko Boykov , Peter W. Shackle , William L. Keith
发明人： Kent E. Crouse , Ronald J. Bezdon , Michael W. Bandel , Patrick J. Keegan , Boyko Boykov , Peter W. Shackle , William L. Keith
IPC分类号： H05B41/285 , H05B41/36 , G05F1/00
CPC分类号： H05B41/2855 , H05B41/36 , Y02B20/186 , Y10S315/07
摘要： An electronic ballast includes an AC to DC converter for power factor correction, a bulk capacitor for storing energy from the converter, and a microprocessor controlled, half-bridge inverter including a series resonant, direct coupled output. Input ports of the microprocessor are coupled to several locations within the ballast to monitor the operation of the ballast or the operation of a gas discharge lamp coupled to the ballast. An analog voltage limiter overrides the microprocessor to limit output voltage under fault conditions. A storage capacitor, connected in series with the bulk capacitor, stores energy at low voltage for powering the microprocessor. The microprocessor is programmed to provide lamp protection features, lumen maintenance, and a warm-up period for a lamp. The microprocessor is also programmed to meet the operating requirements of world markets and of different lamp types.
摘要翻译： 电子镇流器包括用于功率因数校正的AC-DC转换器，用于存储来自转换器的能量的大容量电容器以及包括串联谐振直接耦合输出的微处理器控制的半桥逆变器。 微处理器的输入端口耦合到镇流器内的多个位置，以监测镇流器的操作或耦合到镇流器的气体放电灯的操作。 模拟电压限制器覆盖微处理器以在故障条件下限制输出电压。 与大容量电容器串联连接的存储电容器以低电压存储能量以为微处理器供电。 微处理器被编程为提供灯保护功能，流明维持和灯的预热时间。 微处理器也被编程为满足世界市场和不同灯类型的操作要求。
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公开(公告)号：US5440475A
公开(公告)日：1995-08-08
申请号：US148295
申请日：1993-11-08
申请人： Randy G. Russell , Kent E. Crouse
发明人： Randy G. Russell , Kent E. Crouse
IPC分类号： H05B41/282 , G05F1/70 , H02M1/00 , H02M1/42 , H02M3/155 , H02M7/217 , H05B41/28 , H02M1/12 , H05B37/02
CPC分类号： H02M1/4225 , G05F1/70 , H05B41/28 , Y02B70/126
摘要： Power factor is increased and harmonic distortion is decreased in a boost circuit by varying the current drawn in phase with the ripple voltage from a rectifying bridge. The boost circuit includes a series connected inductor and switching transistor and the control electrode of the switching transistor is connected to a second inductor. The second inductor is magnetically coupled to the first inductor and provides feedback for sustaining high frequency oscillations in the boost circuit. A third inductor is magnetically coupled to the first and second inductors and to the control electrode of the switching transistor. The voltage from the third inductor is rectified and filtered to remove the high frequency pulses but not the ripple and the voltage is coupled to the control electrode of the switching transistor for changing the power consumed by said boost circuit in phase with the ripple.
摘要翻译： 通过改变与整流桥的纹波电压相位相同的电流，升压电路中的功率因数增加，谐波失真减小。 升压电路包括串联的电感器和开关晶体管，并且开关晶体管的控制电极连接到第二电感器。 第二电感器磁耦合到第一电感器并提供用于在升压电路中维持高频振荡的反馈。 第三电感器磁耦合到第一和第二电感器以及开关晶体管的控制电极。 来自第三电感器的电压被整流和滤波以去除高频脉冲而不是纹波，并且电压耦合到开关晶体管的控制电极，用于与波纹相同地改变由所述升压电路消耗的功率。
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6.发明授权Electronic ballast producing voltage having trapezoidal envelope for instant start lamps 失效电子镇流器产生电压，具有立即起动灯的梯形信封
公开(公告)号：US5982113A
公开(公告)日：1999-11-09
申请号：US879181
申请日：1997-06-20
IPC分类号： H05B41/282 , H05B41/285 , H05B37/02
CPC分类号： H05B41/2853 , H05B41/282 , H05B41/2855 , H05B41/2856 , Y10S315/04
摘要： An instant start ballast includes a variable frequency boost circuit and a driven half-bridge inverter having a series resonant, direct coupled, parallel output. A control circuit includes a variable frequency driver section, a multivibrator section, and a sensing section. The variable frequency driver changes frequency smoothly, i.e. without discontinuities. The multivibrator section acts as a switch that is enabled or disabled by the sensing section for controlling the frequency of the inverter. Lamp current is required for continued operation of the control circuit. The multivibrator section controls starting by causing the inverter to produce an output signal having a trapezoidal envelope. In the event of an arc, the control circuit quenches the arc and the multivibrator periodically pulses the lamp to attempt to re-start the lamp.
摘要翻译： 瞬时启动镇流器包括可变频率升压电路和具有串联谐振，直接耦合并联输出的驱动半桥逆变器。 控制电路包括可变频率驱动器部分，多谐振荡器部分和感测部分。 可变频率驱动器平滑地改变频率，即不间断。 多谐振荡器部分用作感测部分启用或禁用的开关，用于控制变频器的频率。 控制电路的继续运行需要灯电流。 多谐振荡器部分通过使逆变器产生具有梯形包络的输出信号来控制开始。 在电弧的情况下，控制电路使电弧猝灭，并且多谐振荡器周期性地脉冲灯以试图重新启动灯。
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公开(公告)号：US5973455A
公开(公告)日：1999-10-26
申请号：US79844
申请日：1998-05-15
申请人： Grigoriy Mirskiy , William L. Keith , Kent E. Crouse , Peter W. Shackle , Patrick J. Keegan , Ronald J. Bezdon
发明人： Grigoriy Mirskiy , William L. Keith , Kent E. Crouse , Peter W. Shackle , Patrick J. Keegan , Ronald J. Bezdon
IPC分类号： H05B41/295 , H05B41/36 , H05B37/02
CPC分类号： H05B41/36 , H05B41/295 , Y10S315/04 , Y10S315/07
摘要： An electronic ballast for a gas discharge lamp includes an AC to DC converter for changing alternating current at power line voltage to direct current and an inverter powered by the converter and having a series resonant, direct coupled output coupled to the lamp. The inverter includes an AC switch having a diode bridge defining an AC diagonal and a DC diagonal and a transistor connected across the DC diagonal. The primary winding of a filament transformer is connected across the AC diagonal of the bridge and the transistor is coupled to the microprocessor for controlling current through the primary winding. The microprocessor is programmed to close the AC switch while the lamp is starting and to open the switch after the lamp is started, thereby cutting off the filaments from a source of power and reducing the power consumed by the ballast during normal operation. A resistor in series with the transistor is used to detect filament resistance and provide an indication of lamp type.
摘要翻译： 用于气体放电灯的电子镇流器包括用于将电力线电压下的交流电流改变为直流电的AC至DC转换器和由转换器供电的具有耦合到灯的串联谐振的直接耦合输出的逆变器。 逆变器包括AC开关，其具有限定AC对角线和DC对角线的二极管桥和跨DC对角线连接的晶体管。 灯丝变压器的初级绕组连接在桥的AC对角线上，晶体管耦合到微处理器，用于控制通过初级绕组的电流。 微处理器被编程为在灯启动时闭合AC开关，并且在灯启动之后打开开关，从而将灯丝从电源切断，并降低正常操作期间镇流器消耗的功率。 与晶体管串联的电阻器用于检测灯丝电阻并提供灯类型的指示。
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公开(公告)号：US5747941A
公开(公告)日：1998-05-05
申请号：US568623
申请日：1995-12-07
IPC分类号： H05B41/298 , H05B37/02
CPC分类号： H05B41/2985 , Y10S315/05
摘要： An electronic ballast includes an inverter producing pulses having a DC component, an output circuit connecting the filaments of one or more lamps in series, and a control circuit for detecting direct current through the filaments. The control circuit includes a capacitor charged by the DC component. When the voltage on the capacitor reaches a predetermined value, the ballast applies a high voltage to the lamps. The predetermined value is not reached unless a direct current passes from the output of the inverter through all lamp filaments to the capacitor. If a lamp filament is not intact, the inverter will not apply high voltage to the lamp.
摘要翻译： 电子镇流器包括产生具有DC分量的脉冲的逆变器，串联连接一个或多个灯的灯丝的输出电路和用于检测通过灯丝的直流电的控制电路。 控制电路包括由DC分量充电的电容器。 当电容器上的电压达到预定值时，镇流器对灯施加高电压。 除非直流电流从逆变器的输出通过所有灯丝到电容器，否则不能达到预定值。 如果灯丝不完整，变频器将不会对灯施加高电压。
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公开(公告)号：US5493180A
公开(公告)日：1996-02-20
申请号：US416022
申请日：1995-03-31
IPC分类号： H05B41/24 , H05B41/298 , H05B39/10
CPC分类号： H05B41/2985
摘要： A lamp protective, electronic ballast includes a lamp voltage detector having a capacitor and resistor series connected across a discharge lamp. The junction of the resistor and capacitor is coupled to a voltage sensitive switch for detecting DC offset on the lamp and excessive AC voltage on the lamp. The switch is more sensitive to DC offset than to excessive AC voltage and is disabled while the lamp is started.
摘要翻译： 灯保护电子镇流器包括具有连接在放电灯上的电容器和电阻器串联的灯电压检测器。 电阻器和电容器的结点耦合到电压敏感开关，用于检测灯上的直流偏移和灯上的过大的交流电压。 开关比直流偏移比过大的交流电压更敏感，在启动灯时禁用。
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公开(公告)号：US20090310272A1
公开(公告)日：2009-12-17
申请号：US12140391
申请日：2008-06-17
申请人： William D. Howell
发明人： William D. Howell
CPC分类号： H01G5/40 , H01G5/38 , H02H7/16 , H02J3/1821 , H02J3/1828 , Y02E40/30
摘要： An energy savings and surge protection devices device that saves electrical energy by optimizing the power factor in single-phase and three-phase applications through the use of capacitors (10) with fixed levels of capacitance and variable capacitance capacitors (13) while providing selectable periods of correction for periods of high or low energy demand through the use of on/off switches/buttons (6), timers (12), meters (17), and servo-loop controls (14) which are used to activate and deactivate capacitors (10) with fixed levels of capacitance and/or discreet capacitive cells (15) of variable capacitance capacitors (13). Additionally, surge protection is promoted through the use of surge arresters (11), also called metal oxide varistors (MOVs).
摘要翻译： 一种节能和浪涌保护装置，通过使用具有固定电容容量和可变电容电容器（13）的电容器（10）优化单相和三相应用中的功率因数来节省电能，同时提供可选择的周期 通过使用用于激活和去激活电容器的开/关开关/按钮（6），定时器（12），仪表（17）和伺服回路控制（14）来校正高或低能量需求的时间段 （10）具有固定电容电平和/或可变电容电容器（13）的离散电容单元（15）。 此外，通过使用避雷器（11），也称为金属氧化物变阻器（MOV）来提升浪涌保护。
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