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    • 2. 发明申请
    • HYBRID DIMMING CONTROL TECHNIQUES FOR LIGHTING DRIVERS
    • 用于照明驱动器的混合调试控制技术
    • US20150257223A1
    • 2015-09-10
    • US14196619
    • 2014-03-04
    • Bernhard SiesseggerBenjamin Alexandrovich
    • Bernhard SiesseggerBenjamin Alexandrovich
    • H05B33/08
    • H05B33/0818H05B33/0815H05B33/0821H05B33/0824H05B33/0827H05B33/083H05B33/0845Y02B20/347
    • Techniques are disclosed for independent control of individual LED strings driven from a single AC current source. A lighting driver circuit includes a DC-AC inverter with series resonance that provides a current that may be split into multiple currents for driving multiple LED assemblies. Current splitting transformers may be used to divide the current from the AC source, and the amplitude of the current from the AC source may be determined by a microcontroller. In some cases the current splitting transformers provide galvanic isolation to the LED assemblies. The multiple LED assemblies may be controlled by a number of switches that may independently activate the individual LED assemblies based on the duty cycle of multiple PWM signals provided to the switches by the microcontroller. When all of the PWM signals output from the microcontroller are on an off-cycle, the current source may be turned off.
    • 公开了用于独立控制从单个AC电流源驱动的各个LED串的技术。 照明驱动器电路包括具有串联谐振的DC-AC逆变器,其提供可分为多个电流以驱动多个LED组件的电流。 可以使用电流分流变压器来分配来自AC源的电流,并且来自AC源的电流的幅度可以由微控制器确定。 在某些情况下,电流分流变压器为LED组件提供电流隔离。 多个LED组件可以由多个开关控制,这些开关可以基于由微控制器提供给开关的多个PWM信号的占空比独立地激活各个LED组件。 当从微控制器输出的所有PWM信号都处于断开周期时,电流源可能会关闭。
    • 4. 发明授权
    • Solid state light source driving and dimming using an AC voltage source
    • 使用交流电压源进行固态光源驱动和调光
    • US08258710B2
    • 2012-09-04
    • US12874292
    • 2010-09-02
    • Benjamin AlexandrovichDavid Betts
    • Benjamin AlexandrovichDavid Betts
    • H05B37/00
    • H05B33/0815H05B33/0818H05B33/0845H05B33/0863
    • Solid state light source driving and dimming systems are provided that enable a plurality of solid state light source (e.g., LED) driver circuits to be coupled to a single AC voltage source. The driver circuits may include constant current circuitry configured to generate a constant AC current from the AC voltage source, and rectifier circuitry configured to generate a DC current to drive the solid state light source (e.g., LEDs). Dimming control includes shunt circuitry operable with a PWM switch to shunt the AC voltage source during certain portions of a PWM signal and to decouple the shunt circuitry from the AC voltage source during other portions of the PWM signal. Shunting the AC voltage source causes the interruption of the DC current to effectively turn off the LEDs. Decoupling the shunt circuitry may improve overall efficiency of power transfer to the LEDs.
    • 提供固态光源驱动和调光系统,其使多个固态光源(例如,LED)驱动电路能够耦合到单个AC电压源。 驱动器电路可以包括被配置为从AC电压源产生恒定AC电流的恒定电流电路,以及被配置为产生DC电流以驱动固态光源(例如,LED)的整流器电路。 调光控制包括在PWM信号的某些部分期间利用PWM开关可操作的分流电路,以便在PWM信号的某些部分期间分流AC电压源,并且在PWM信号的其他部分期间将分流电路与AC电压源分离。 分流交流电源会导致直流电流的中断,从而有效地关闭LED。 去耦合分流电路可以提高对LED的功率传输的总体效率。
    • 5. 发明授权
    • Hybrid dimming control techniques for lighting drivers
    • 照明驱动器的混合调光控制技术
    • US09241380B2
    • 2016-01-19
    • US14196619
    • 2014-03-04
    • Bernhard SiesseggerBenjamin Alexandrovich
    • Bernhard SiesseggerBenjamin Alexandrovich
    • H05B41/00H05B33/08
    • H05B33/0818H05B33/0815H05B33/0821H05B33/0824H05B33/0827H05B33/083H05B33/0845Y02B20/347
    • Techniques are disclosed for independent control of individual LED strings driven from a single AC current source. A lighting driver circuit includes a DC-AC inverter with series resonance that provides a current that may be split into multiple currents for driving multiple LED assemblies. Current splitting transformers may be used to divide the current from the AC source, and the amplitude of the current from the AC source may be determined by a microcontroller. In some cases the current splitting transformers provide galvanic isolation to the LED assemblies. The multiple LED assemblies may be controlled by a number of switches that may independently activate the individual LED assemblies based on the duty cycle of multiple PWM signals provided to the switches by the microcontroller. When all of the PWM signals output from the microcontroller are on an off-cycle, the current source may be turned off.
    • 公开了用于独立控制从单个AC电流源驱动的各个LED串的技术。 照明驱动器电路包括具有串联谐振的DC-AC逆变器,其提供可分为多个电流以驱动多个LED组件的电流。 可以使用电流分流变压器来分配来自AC源的电流,并且来自AC源的电流的幅度可以由微控制器确定。 在某些情况下,电流分流变压器为LED组件提供电流隔离。 多个LED组件可以由多个开关控制,这些开关可以基于由微控制器提供给开关的多个PWM信号的占空比独立地激活各个LED组件。 当从微控制器输出的所有PWM信号都处于断开周期时,电流源可能会关闭。
    • 7. 发明申请
    • Solid State Light Source Driving and Dimming Using an AC Voltage Source
    • 使用交流电压源的固态光源驱动和调光
    • US20120056554A1
    • 2012-03-08
    • US12874292
    • 2010-09-02
    • Benjamin AlexandrovichDavid Betts
    • Benjamin AlexandrovichDavid Betts
    • H05B41/36
    • H05B33/0815H05B33/0818H05B33/0845H05B33/0863
    • Solid state light source driving and dimming systems are provided that enable a plurality of solid state light source (e.g., LED) driver circuits to be coupled to a single AC voltage source. The driver circuits may include constant current circuitry configured to generate a constant AC current from the AC voltage source, and rectifier circuitry configured to generate a DC current to drive the solid state light source (e.g., LEDs). Dimming control includes shunt circuitry operable with a PWM switch to shunt the AC voltage source during certain portions of a PWM signal and to decouple the shunt circuitry from the AC voltage source during other portions of the PWM signal. Shunting the AC voltage source causes the interruption of the DC current to effectively turn off the LEDs. Decoupling the shunt circuitry may improve overall efficiency of power transfer to the LEDs.
    • 提供固态光源驱动和调光系统,其使多个固态光源(例如,LED)驱动电路能够耦合到单个AC电压源。 驱动器电路可以包括被配置为从AC电压源产生恒定AC电流的恒定电流电路,以及被配置为产生DC电流以驱动固态光源(例如,LED)的整流器电路。 调光控制包括在PWM信号的某些部分期间利用PWM开关可操作的分流电路,以便在PWM信号的某些部分期间分流AC电压源,并且在PWM信号的其他部分期间将分流电路与AC电压源分离。 分流交流电源会导致直流电流的中断,从而有效地关闭LED。 去耦合分流电路可以提高对LED的功率传输的总体效率。
    • 9. 发明申请
    • Power Splitter Circuit For Electrodeless Lamp
    • 无极灯功率分配电路
    • US20120074855A1
    • 2012-03-29
    • US12893628
    • 2010-09-29
    • Valery GodyakBenjamin AlexandrovichRobert Martin
    • Valery GodyakBenjamin AlexandrovichRobert Martin
    • H05B37/02H05B41/26
    • H01J61/92H01J61/56H01J65/048H05B41/2806Y02B20/22
    • A lamp assembly adapted to operate as one of a total number of lamp assemblies that are connected together in series and connected to a ballast. The lamp assembly comprises an electrodeless, closed-loop, tubular lamp envelope enclosing mercury vapor and a buffer gas, and a transformer core disposed around a portion of the lamp envelope. An input winding is disposed on the transformer core so that it has a particular number of turns, Ninput. An auxiliary winding is disposed on the transformer core so that it has a particular number of turns, Nauxiliary. The auxiliary winding is adapted to connect to the ballast and to couple with the input winding. The ratio of the particular number of turns Ninput to the particular number of turns Nauxiliary is substantially proportional to the total number of lamp assemblies that are adapted to operate in series together.
    • 一种灯组件,其适于作为串联连接在一起并连接到镇流器的总数量的灯组件之一来操作。 灯组件包括封闭汞蒸汽和缓冲气体的无电极闭环管状灯管,以及围绕灯壳的一部分设置的变压器芯。 输入绕组设置在变压器芯上,使其具有特定的匝数Ninput。 辅助绕组设置在变压器芯上,使其具有特定数量的匝数。 辅助绕组适于连接镇流器并与输入绕组耦合。 特定匝数Ninput与特定匝数Nauxiliary的比例与适合串联操作的灯组件总数成正比。
    • 10. 发明申请
    • Re-entrant cavity fluorescent lamp system
    • 再入腔荧光灯系统
    • US20050099141A1
    • 2005-05-12
    • US10883077
    • 2004-07-01
    • Valery GodyakBenjamin AlexandrovichAlexander SapozhnikovKenneth Hutcherson
    • Valery GodyakBenjamin AlexandrovichAlexander SapozhnikovKenneth Hutcherson
    • H01J61/28H01J61/56H01J65/04H05B37/02
    • H01J61/56H01J61/28H01J65/048
    • An electrodeless fluorescent lamp (10) having a burner (20), a ballast housing (30) containing a ballast (40) and a screw base (50) for connection to a power supply. A reentrant cavity (60) is formed in the burner (20) and an amalgam receptacle (70) containing amalgam (75) is formed as a part of the reentrant portion and in communication with the burner (20). A housing cap (80), formed of a suitable plastic, connects the burner (20) to the ballast housing (30) and a suitable adhesive (31) fixes the burner to the housing cap (80). An EMI cup (90) is formed as an insert to fit into the ballast housing (30), which also is formed of a suitable plastic, and has a bottom portion (100) and an EMI cap (110) with an aperture (120) therein closing an upper portion (140). The EMI cup (90) and the EMI cap (110) are preferably formed from 0.5 mm brass. The amalgam receptacle (70) extends through the aperture (120) and into the cup (90). For a fixed amalgam position, changing the aperture size allows adjustment of the amalgam tip temperature, and thus, allows control of the system lumen output, efficacy, CCT and CRI, all of which are dependent on the amalgam temperature.
    • 一种具有燃烧器(20)的无电极荧光灯(10),包含镇流器(40)的镇流器壳体(30)和用于连接到电源的螺丝座(50)。 在燃烧器(20)中形成可折入腔(60),并且形成含有汞齐(75)的汞齐容器(70)作为折返部分的一部分并与燃烧器(20)连通。 由合适的塑料形成的壳体帽(80)将燃烧器(20)连接到镇流器壳体(30),并且合适的粘合剂(31)将燃烧器固定到壳体盖(80)。 EMI杯(90)形成为插入件以装配到也由合适的塑料形成的镇流器壳体(30)中,并且具有底部(100)和具有孔(120)的EMI帽(110) )封闭上部(140)。 EMI杯(90)和EMI帽(110)优选地由0.5mm的黄铜形成。 汞齐容器(70)延伸穿过孔(120)并进入杯(90)。 对于固定的汞齐位置,改变孔径大小允许调整汞齐尖端温度,因此允许控制系统流明输出,功效,CCT和CRI,所有这些都取决于汞齐温度。