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    • 3. 发明授权
    • Electronic ballast with lamp current correction circuit
    • 电子镇流器带灯电流校正电路
    • US5519289A
    • 1996-05-21
    • US335528
    • 1994-11-07
    • Robert H. KatylRobert M. Murcko
    • Robert H. KatylRobert M. Murcko
    • H05B41/282H05B41/392H05B37/02
    • H05B41/3921H05B41/282H05B41/392Y10S315/07
    • The present invention features a gas discharge lamp electronic ballast that uses a frequency-dependent control circuit. The lamps are all energized by means of a single electronic ballast, including an electronically regulated power supply, a power oscillator/driver circuit, an output coupling circuit and a feedback circuit that provides frequency-to-voltage conversion for controlling the output voltage of the power supply. In this way, constant lamp current is maintained, regardless of the number of lamps connected. Since the remaining lamps are operated at their specified, correct lamp current, lamp life is preserved. Another feature of the circuit is its ability to dim the lamp output continuously over a limited range to reduce energy usable in circumstances in which full lamp illumination is not required. Such dimming can be controlled by a suitable external control signal such as from a potentiometer, switch, light monitoring device or a motion detector.
    • 本发明的特征在于一种使用频率依赖控制电路的气体放电灯电子镇流器。 这些灯都通过单个电子镇流器供电,包括电子调节电源,功率振荡器/驱动器电路,输出耦合电路和反馈电路,其提供频率 - 电压转换以控制输出电压 电源。 以这种方式,恒定的灯电流被维持,而不管连接的灯的数量。 由于剩余的灯以其指定的正确的灯电流工作,因此保持灯的使用寿命。 该电路的另一个特征是能够在有限的范围内连续调光灯的输出,以减少在不需要全灯照明的情况下可用的能量。 这种调光可以通过合适的外部控制信号来控制,例如来自电位计,开关,光监测装置或运动检测器。
    • 4. 发明授权
    • Remote dimming control system for a fluorescent ballast utilizing existing building wiring
    • 利用现有建筑物布线的荧光镇流器的远程调光控制系统
    • US06218787B1
    • 2001-04-17
    • US09063325
    • 1998-04-20
    • Robert M. MurckoRobert H. KatylDavid W. Dranchak
    • Robert M. MurckoRobert H. KatylDavid W. Dranchak
    • H05B3702
    • H05B37/0263H05B41/3921Y10S315/04
    • A system is described for remotely controlling the dimming level of ballasts for fluorescent lamps through standard two-wire AC power wiring normally used within buildings. The system makes use of a unique dimming control that creates a small positive-negative voltage asymmetry, or DC offset, and encodes this control signal onto the power lines that supply the ballasts to be dimmed. The control unit can be integrated with a wall switch as part of a variable dimming control to supply “local” remote control. It can be interfaced to a building control computer. A small decoding module preferably located in the lighting fixture near the ballast recovers the control signal from the applied asymmetry of the power voltage, processes it if necessary, and feeds it to the ballast. To minimize power losses in the dimming control, a DC offset of zero volts, or no asymmetry, produces full light output. For full dimming, an offset of about 15 volts is used. The resulting maximum dissipation is only a few watts when dimming up to six, 32-watt fluorescent lamps. The advantages include savings in re-wiring costs, higher power factor levels, lower harmonic distortion and lower radio frequency interference compared to other two-wire dimming methods.
    • 描述了一种系统,用于通过通常在建筑物内使用的标准双线交流电力线路远程控制荧光灯镇流器的调光水平。 该系统利用独特的调光控制,产生小的正负电压不对称或DC偏移,并将该控制信号编码到提供镇流器的电源线上。 控制单元可以与墙壁开关集成,作为变量调光控制的一部分,以提供“本地”遥控器。 它可以连接到建筑物控制计算机。 优选地位于靠近镇流器的照明设备中的小解码模块从所施加的电源电压的不对称性中恢复控制信号,如果需要则处理它,并将其馈送到镇流器。 为了最小化调光控制中的功率损耗,零伏特的直流偏移或无不对称性产生全光输出。 对于完全调光,使用约15伏的偏移。 由此产生的最大功耗只有几瓦,当调光到6个,32瓦的荧光灯时。 与其他双线调光方法相比,优点包括节省重新布线成本,更高的功率因数水平,更低的谐波失真和更低的射频干扰。
    • 6. 发明授权
    • Inrush protection circuit
    • 浪涌保护电路
    • US5930130A
    • 1999-07-27
    • US940067
    • 1997-09-29
    • Robert H. KatylRobert M. MurckoDavid W. Dranchak
    • Robert H. KatylRobert M. MurckoDavid W. Dranchak
    • H02H9/00H05B41/285H02H7/125G05F1/10H02M5/42
    • H05B41/2856H02H9/001Y10S323/908
    • A large inrush of electrical current flow occurs during a short interval after switch closure, when power is applied to a conventional electronic ballast commonly used for fluorescent lighting. This inrush current flows as the main filter capacitor in the ballast charges to its steady state value. For a lighting circuit that contains a multiplicity of ballasts, the combined magnitude of the inrush is potentially large enough to cause contact failure of the switching device due to arcing and contact welding. The invention features a circuit for limiting inrush current having a current-limiting resistor that is active for a brief interval during startup. The resistor is subsequently bypassed from the principal current path by a switching transistor. The transistor is controlled by electrical signals normally present in conventional electronic ballasts. The advantage of the inventive circuitry is the use of only two inexpensive components to accomplish inrush current protection.
    • 在通常用于荧光照明的常规电子镇流器上施加电力时,在开关闭合之后的短时间内会发生大的电涌流动。 该镇流电流作为镇流器中的主滤波电容器流过其稳态值。 对于包含多个镇流器的照明电路,浪涌的组合幅度潜在地大到足以导致开关装置由于电弧和接触焊接而导致的接触故障。 本发明的特征在于一种用于限制具有限流电阻器的浪涌电流的电路,该限流电阻器在启动期间短暂地间隔起作用。 电阻器随后由开关晶体管从主电流路径旁路。 晶体管由常规电子镇流器中通常存在的电信号控制。 本发明电路的优点是仅使用两个便宜的组件来实现浪涌电流保护。
    • 8. 发明授权
    • Ballast fixture for fluorescent lighting
    • 镇流器用于荧光灯
    • US5908235A
    • 1999-06-01
    • US846195
    • 1997-04-28
    • James R. PetrozelloFletcher W. ChapinDavid W. DranchakRobert M. MurckoScott W. KnaussRobert H. KatylJohn R. Susko
    • James R. PetrozelloFletcher W. ChapinDavid W. DranchakRobert M. MurckoScott W. KnaussRobert H. KatylJohn R. Susko
    • H05B41/02F21V21/00
    • H05B41/02
    • The present invention features an integrated, electronic fluorescent ballast fixture which includes an electronic ballast packaged with a set of fluorescent lamp connectors into an integral fixture. The fixture has a circuit board that selectably supports up to four fluorescent lamps. The housing of the fixture id configured to receive a number of lamp connectors. The connectors are electrically, connected to the circuit board use wire and poke-in type connectors. When used with conventional, straight fluorescent lamps, a second set of sockets at the far end of the lamps are also connected to the circuit board using wires received in poke-in connector on the circuit board. The integrated ballast package also works with U-shaped lamps. The housing of the fixture is shaped to accommodate projecting electronic ballast components attached to the circuit board. The transformers and transistors of the circuit board may be thermally sinked, so that their heat is carried to the housing by thermally conductive means. The housing consists of two halves that are assembled together with snap-in action latches, making the fixture quickly and easily fabricated. The ballast fixture can be used with a wide variety of light fixtures because of its modularity, affording a high degree of universality.
    • 本发明的特征在于一种集成的电子荧光灯镇流器,其包括一个电子镇流器,该电子镇流器与一组荧光灯连接器一体化成一体的夹具。 该灯具具有可选择地支撑多达四个荧光灯的电路板。 固定装置的外壳被配置为接收多个灯连接器。 连接器电气连接到电路板上,使用导线和插入式连接器。 当与常规的直的荧光灯一起使用时,在灯的远端处的第二组插座也使用接在电路板上的插入式连接器中的导线连接到电路板。 集成的镇流器封装也可与U形灯一起使用。 固定装置的壳体被成形为容纳连接到电路板的突出的电子镇流器部件。 电路板的变压器和晶体管可以被散热,使得它们的热量通过导热装置被传送到壳体。 外壳由两个半部组成,与卡入动作闩锁组装在一起,使夹具快速轻松地制作。 镇流器夹具可以与各种灯具一起使用,因为它的模块化,提供了高度的普遍性。
    • 9. 发明授权
    • Fluorescent light ballast with information transmission circuitry
    • 带信息传输电路的荧光灯镇流器
    • US5838116A
    • 1998-11-17
    • US632297
    • 1996-04-15
    • Robert H. KatylRobert M. MurckoDavid W. Dranchak
    • Robert H. KatylRobert M. MurckoDavid W. Dranchak
    • H04B10/10H05B37/02H05B41/36G05F1/00
    • H04B10/1149H04B10/116H05B37/0263H05B41/36Y10S315/04
    • The present invention features an electronic fluorescent lighting ballast which provides a way to transmit data by modulating the light that is emitted from lamps in a luminaire. The modulation occurs at a sufficiently high frequency, so that it is imperceptible in the range of human vision. Data can be represented in the emitted light by frequency-, phase- or amplitude-modulation. Communication methods can be either simplex or duplex. In the preferred embodiment, a simple modification of the base circuit of a typical, Class D, bipolar, push-pull inverter permits frequency- or phase-modulation of the inverter waveform. This causes modulation of the emitted light from the lamps of the luminaire. The transmission of data through an otherwise conventional lighting luminaire is desirable for many commercial applications. One example of its usage is in the transmission of audio or digital information in a grocery or department store from a centralized computer to display units on store shelves. Another example of its usage is in the transmission of audio or digital information from a central computer to various fixed or portable display terminals in an airport, providing arrival and departure information.
    • 本发明的特征在于一种电子荧光照明镇流器,其提供通过调制在灯具中的灯发出的光来传输数据的方式。 调制以足够高的频率发生,使得它在人类视觉的范围内是不可察觉的。 数据可以通过频率,相位或幅度调制在发射光中表示。 通信方式可以是单工还是双工。 在优选实施例中,典型的D类双极推挽逆变器的基本电路的简单修改允许逆变器波形的频率或相位调制。 这导致来自照明器的灯的发射光的调制。 通过另外传统的照明灯具的数据传输对于许多商业应用是理想的。 其使用的一个示例是将音频或数字信息从杂货店或百货公司从中央计算机传输到商店货架上的单元。 其使用的另一个例子是将音频或数字信息从中央计算机传输到机场中的各种固定或便携式显示终端,提供到达和离开信息。