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公开(公告)号：US6111365A
公开(公告)日：2000-08-29
申请号：US394865
申请日：1999-09-13
IPC分类号： H05B41/28 , H05B41/282 , H05B41/16
CPC分类号： H05B41/28 , H05B41/282 , Y02B20/183 , Y10S315/07
摘要： An electronic ballast includes a zener diode in series with the bulk capacitor of the ballast to provide a charging voltage for a small capacitor that powers a power factor correction circuit within the ballast. A SCR in parallel with the zener diode shuts off the zener diode after the power factor correction circuit begins operation.
摘要翻译： 电子镇流器包括与镇流器的体积电容器串联的齐纳二极管，以为为镇流器内的功率因数校正电路供电的小电容器提供充电电压。 与齐纳二极管并联的SCR在功率因数校正电路开始工作后关闭齐纳二极管。
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公开(公告)号：US6091199A
公开(公告)日：2000-07-18
申请号：US903311
申请日：1997-07-30
IPC分类号： H01L23/367 , H01L23/433 , H01L25/16 , H01J7/24
CPC分类号： H01L23/367 , H01L23/433 , H01L25/165 , H01L2924/0002
摘要： An insulating enclosure for an electronic ballast has at least one major surface and a thermally conductive heat spreader at the major surface. The heat spreader is thermally coupled to at least one of the electronic components within the ballast and has an area greater than the area of the component as measured parallel with the major surface. The electronic components are thermally coupled to the heat spreader by a thermally conductive, deformable means such as caulk or by domes or dimples in the heat spreader that accommodate the variations in height among the electronic components. An electrically insulating layer can be located between the heat spreader and some of the components to prevent the heat spreader from electrically shorting the components.
摘要翻译： 用于电子镇流器的绝缘外壳在主表面具有至少一个主表面和导热散热器。 散热器热连接到镇流器内的至少一个电子部件，并且具有大于与主表面平行测量的部件的面积的面积。 电子部件通过热传导的可变形的装置（例如填缝）或散热器中的圆顶或凹坑热耦合到散热器，以适应电子部件之间的高度变化。 电绝缘层可以位于散热器和部件之间，以防止散热器电气短路部件。
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公开(公告)号：US6023132A
公开(公告)日：2000-02-08
申请号：US170144
申请日：1998-10-12
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 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： 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：US5789866A
公开(公告)日：1998-08-04
申请号：US893741
申请日：1997-07-11
IPC分类号： H05B41/295 , H05B37/00
CPC分类号： H05B41/295 , Y10S315/05
摘要： An electronic ballast includes a series resonant inductor and capacitor and a filament winding magnetically coupled to said inductor. The filament winding forms a closed circuit with a filament in a gas discharge lamp, wherein the current induced in the winding opposes a portion of the current through the inductor to reduce the net voltage on the filament during normal lamp operation. In accordance with another aspect of the invention, the filament winding is reversely wound with the inductor on a common core to reverse the phase of the current induced in the filament winding from the current through the inductor.
摘要翻译： 电子镇流器包括串联谐振电感器和电容器以及与所述电感器磁耦合的细丝绕组。 灯丝绕组在气体放电灯中形成具有灯丝的闭合回路，其中在绕组中感应的电流与通过电感器的电流的一部分相反，以在正常的灯操作期间降低灯丝上的净电压。 根据本发明的另一方面，灯丝绕组与电感器反向卷绕在公共芯上，以将从灯丝绕组感应的电流的相位从电流反转。
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15.发明授权Booster driven inverter ballast employing the output from the inverter to trigger the booster 失效增压器驱动的逆变器镇流器采用变频器的输出来触发升压器
公开(公告)号：US5461287A
公开(公告)日：1995-10-24
申请号：US202053
申请日：1994-02-25
IPC分类号： H05B41/298 , H05B37/02
CPC分类号： H05B41/2985 , Y10S315/05 , Y10S315/07
摘要： An electronic ballast includes a triggered boost circuit, a driven inverter, and a low voltage signal generator in a a half-bridge, push-pull, series resonant, parallel loaded configuration. The boost circuit is triggered by a voltage from the inverter and the inverter is controlled by the low voltage signal generator. The boost circuit includes a low voltage output for powering the signal generator. In the event of a fault, the operation of the signal generator is interrupted, thereby shutting off the boost circuit and the inverter. A DC blocking capacitor is in series with the lamps and a resistor is connected in parallel with the DC blocking capacitor. The ballast is started by a pulse of displacement current through the lamp filaments to the boost circuit. Since the lamp filaments must be intact, the ballast does not begin a lamp starting sequence until lamps are connected to the ballast.
摘要翻译： 电子镇流器包括触发升压电路，从动逆变器和半桥式推挽串联谐振并联负载配置中的低电压信号发生器。 升压电路由变频器的电压触发，变频器由低压信号发生器控制。 升压电路包括用于为信号发生器供电的低电压输出。 发生故障时，信号发生器的运行中断，从而关闭升压电路和逆变器。 直流隔离电容器与灯串联，并且电阻器与隔直流电容器并联连接。 镇流器通过灯丝的位移电流脉冲启动到升压电路。 由于灯丝必须是完整的，所以镇流器不会开始灯起动顺序，直到灯泡连接到镇流器。
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公开(公告)号：US20030146716A1
公开(公告)日：2003-08-07
申请号：US10066059
申请日：2002-02-01
申请人： Energy Savings, Inc.
IPC分类号： H05B037/02
CPC分类号： H05B41/2851
摘要： Gas discharge lamps may conduct current from the common rail to earthen ground through a fixture containing the lamps. A transistor is coupled in series in the current path to the common rail. When the ballast is placed in a quiescent state, the transistor is rendered non-conducting, thereby solating the lamps from the common rail and preventing flicker. In accordance with another aspect of the invention, the control electrode of the transistor is coupled to a source of low voltage and the transistor is rendered non-conducting when the source of low voltage is turned off. The lamps can also be isolated from the common rail by using a semiconductor switch in the rectifier section or by referencing the output of the inverter to the high voltage rail.
摘要翻译： 气体放电灯可以通过包含灯的固定装置将电流从共轨传导到土地。 晶体管在共轨的电流路径中串联耦合。 当镇流器处于静止状态时，晶体管变得不导通，从而从共轨引导灯并防止闪烁。 根据本发明的另一方面，晶体管的控制电极耦合到低电压源，并且当低电压源关闭时，晶体管变为不导通。 灯也可以通过在整流器部分中使用半导体开关或通过将逆变器的输出引用到高压轨道而与共轨隔离。
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公开(公告)号：US5500576A
公开(公告)日：1996-03-19
申请号：US227953
申请日：1994-04-15
CPC分类号： G05F1/70 , H02M1/4225 , H05B41/28 , Y02B70/126 , Y10S315/05
摘要： An electronic ballast has a high voltage portion and a low voltage portion. The high voltage portion includes a converter, having a variable frequency boost circuit, and a half-bridge, driven inverter having a series resonant, direct coupled output. The low voltage portion of the ballast includes a control circuit and fault detectors for shutting off the boost circuit and the inverter circuit. The fault detectors consume very little power when the ballast and lamp are functioning normally. Separate magnetics are used for boost, inverter, and output. Each magnetic is essentially cubic in shape and carries as little current as possible.
摘要翻译： 电子镇流器具有高电压部分和低电压部分。 高电压部分包括具有可变频率升压电路的转换器和具有串联谐振直接耦合输出的半桥驱动逆变器。 镇流器的低电压部分包括控制电路和用于关断升压电路和逆变器电路的故障检测器。 当镇流器和灯正常工作时，故障检测器消耗的功率很小。 单独的磁力线用于升压，逆变和输出。 每个磁体的形状基本上是立方体，并且尽可能少地传输电流。
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公开(公告)号：US5493181A
公开(公告)日：1996-02-20
申请号：US436789
申请日：1995-05-08
IPC分类号： H05B41/285 , H05B39/00
CPC分类号： H05B41/2855 , Y10S315/07
摘要： An electronic ballast includes a boost circuit, a low voltage control circuit, and a driven inverter in a half-bridge, push-pull, series resonant, parallel loaded configuration. The boost circuit includes a low voltage output for powering the control circuit. In the event of a fault, the control circuit shuts off the boost circuit and the inverter. A sense capacitor is in series with the lamps and the voltage across the capacitor prevents a timer in the control circuit from shutting off the ballast. The timer circuit waits a period longer than the time it takes for the lamps to start normally. The sense capacitor is either in series with the lamp across the resonant capacitor or is in series with the resonant capacitor.
摘要翻译： 电子镇流器包括升压电路，低压控制电路和半桥，推挽，串联谐振，并联负载配置中的从动逆变器。 升压电路包括用于为控制电路供电的低电压输出。 发生故障时，控制电路将关闭升压电路和逆变器。 感测电容器与灯串联，并且电容器两端的电压防止控制电路中的定时器关闭镇流器。 定时器电路等待一段比灯正常启动所需的时间更长的时间。 感测电容器与谐振电容器上的灯串串联或与谐振电容器串联。
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公开(公告)号：US5396155A
公开(公告)日：1995-03-07
申请号：US266746
申请日：1994-06-28
IPC分类号： H05B41/285 , H05B41/392 , G05F1/00
CPC分类号： H05B41/2853 , H05B41/3925 , Y02B20/185 , Y10S315/04 , Y10S315/07
摘要： A self-dimming electronic ballast for a gas discharge lamp includes a converter having an unregulated boost circuit coupled to a variable frequency inverter having a series resonant, parallel loaded output. The inverter includes a variable frequency driver circuit having a timing circuit for determining the frequency of the driver. A transistor in the timing circuit operates as an inverting amplifer and is controlled by a signal proportional to the voltage of the AC line. The frequency of the inverter increases with decreasing voltage on the AC line. The ballast can be on the same circuit as incandescent lamps and powered by a triac or variac dimmer for dimming both the incandescent and gas discharge lamps.
摘要翻译： 用于气体放电灯的自调光电子镇流器包括具有耦合到具有串联谐振并联负载输出的变频器的未调节升压电路的转换器。 逆变器包括具有用于确定驾驶员的频率的定时电路的可变频率驱动器电路。 定时电路中的晶体管作为反相放大器工作，并由与AC线的电压成比例的信号控制。 变频器的频率随着交流线路上的电压降低而增加。 镇流器可以与白炽灯在同一电路上，并且由三端双向可控硅开关元件或可变调光器供电，用于对白炽灯和气体放电灯进行调光。
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