Modular lighting system
    3.
    发明授权
    Modular lighting system 失效
    模块化照明系统

    公开(公告)号:US5640069A

    公开(公告)日:1997-06-17

    申请号:US598269

    申请日:1996-02-07

    申请人: Ole K. Nilssen

    发明人: Ole K. Nilssen

    摘要: A fluorescent lighting system has: (A) a central power supply connected with regular power line voltage and including a number of power supply modules (e.g., eight), each such module having: (i) a parallel-resonant self-oscillating bridge inverter operative to provide a 35 kHz sinusoidal output voltage at a pair of primary output terminals; (ii) a tank-inductor and a tank-capacitor parallel-connected across the primary output terminals; and (iii) several (e.g., four) pairs of secondary output terminals, each connected with the primary output terminals via its own dedicated current-limiting sub-circuit; thereby to prevent a load connected with a pair of secondary output terminals from drawing more than a certain amount of power; thereby, in turn, to render each pair of secondary output terminals fire-hazard-safe; (B) a plurality of lighting fixtures (e.g., 32), each having a fluorescent lamp and a power input receptacle; each lighting fixture also including a power-factor-corrected 35 Khz ballast connected between its power input receptacle and its fluorescent lamp; and (C) a light-weight power cord plug-in-connected between the power input receptacle of each lighting fixture and one of the pairs of power output terminals. Thus, a single central multi-port power supply will serve to power a large number (e.g., 32) lighting fixtures, with each individual lighting fixture connected directly with one of the many (e.g., 32) individual pairs of secondary power output terminals of the central power supply.

    摘要翻译: 荧光照明系统具有:(A)与常规电力线电压相连并包括多个电源模块(例如八个)的中央电源,每个模块具有:(i)并联谐振自振荡桥式逆变器 可操作地在一对主输出端子处提供35kHz的正弦输出电压; (ii)在主输出端子之间并联连接的电容器和电容器; 和(iii)多个(例如四个)次级输出端子,每个次级输出端子通过其自己的专用限流子电路与主输出端子相连; 从而防止与一对二次输出端子连接的负载超过一定量的电力; 从而反过来使得每对二次输出端子都易于安全; (B)多个照明器具(例如32),每个具有荧光灯和电源输入插座; 每个照明灯具还包括连接在其电源输入插座和其荧光灯之间的功率因数校正的35KHz镇流器; 和(C)插入连接在每个照明器具的电源输入插座和一对电源输出端子之间的轻量电源线。 因此,单个中央多端口电源将用于为大量(例如32个)照明灯具供电,每个照明器具直接与多个(例如32个)单独的副电源输出端子之一 中央电源。

    Instant-on screw-in fluorescent lamp
    4.
    发明授权
    Instant-on screw-in fluorescent lamp 失效
    即插螺丝荧光灯

    公开(公告)号:US5491385A

    公开(公告)日:1996-02-13

    申请号:US47944

    申请日:1993-04-16

    申请人: Ole K. Nilssen

    发明人: Ole K. Nilssen

    摘要: A compact folded fluorescent lamp and a small incandescent lamp are both mounted on an ordinary Edison-type screw-base capable of being screwed into an ordinary lamp socket at which ordinary AC power line voltage is controllably provided. An inverter-type ballast is integrally combined with the base and is operable to power the fluorescent lamp whenever the base is indeed screwed into the lamp socket. The incandescent lamp is powered from the AC power line voltage by way of an SCR whose conduction angle is controlled such as to cause the total light provided from the combination fluorescent-incandescent lamp to remain substantially constant from the very first moment that AC power line voltage is provided at the lamp socket. Thus, when the AC power line voltage is initially provided, the light provided from the incandescent lamp will be at its maximum while the light provided from the fluorescent lamp will be at its minimum. Thereafter, the light from the incandescent lamp will gradually diminish as the light from the fluorescent lamp gradually increases. After a brief period, the AC power line voltage will be totally disconnected from the incandescent lamp.

    摘要翻译: 紧凑型折叠式荧光灯和小型白炽灯均安装在普通的爱迪生型螺丝刀座上,该基座能够螺纹连接到可控制地设置普通交流电源线电压的普通灯座中。 逆变器型镇流器与基座一体地组合,并且可操作以在基座确实拧入灯座时对荧光灯供电。 白炽灯由交流电源线电压供电,其中SCR的导通角被控制,使得从组合荧光白炽灯提供的总光线从交流电源电压的第一时刻保持基本恒定 设在灯座上。 因此,当最初设置AC电力线电压时,从白炽灯提供的光将处于其最大值,而从荧光灯提供的光将处于其最小值。 此后,随着来自荧光灯的光逐渐增加,来自白炽灯的光将逐渐减小。 短暂的一段时间后,交流电源线的电压将与白炽灯完全断开。

    Electronic ballast drawing sinusoidal line current
    5.
    发明授权
    Electronic ballast drawing sinusoidal line current 失效
    电子镇流器绘制正弦线电流

    公开(公告)号:US5469028A

    公开(公告)日:1995-11-21

    申请号:US901989

    申请日:1992-06-22

    申请人: Ole K. Nilssen

    发明人: Ole K. Nilssen

    摘要: In an electronic ballast, a half-bridge inverter drives a series-connected LC circuit near the LC circuit's natural resonance frequency. A relatively high-magnitude substantially sinusoidal 30 kHz output voltage develops across the tank-capacitor of the LC circuit. Each of several instant-start fluorescent lamps is series-connected with a current-limiting capacitor, thereby resulting in several lamp-capacitor series-combinations, each of which is connected across the tank-capacitor. The ballast is powered from ordinary 120 Volt/60 Hz power line voltage by way of a full-wave rectifier. At the DC output terminals of this rectifier exists a DC voltage having an instantaneous absolute magnitude equal to that of the power line voltage. Within the ballast, the inverter is powered from a DC supply voltage of constant magnitude about equal to the peak magnitude of the power line voltage. By interposing power-drawing circuitry in series with each lamp-capacitor combination, an auxiliary DC voltage is developed across a pair of auxiliary DC terminals. When no current flows from the auxiliary DC terminals, the magnitude of the auxiliary DC voltage is equal to that of the DC supply voltage. The maximum DC current available from the auxiliary DC terminals varies with the magnitude of the combined lamp currents and is adjusted so as to be equal to the peak magnitude of the current drawn from the power line; which current, as a result, is nearly sinusoidal.

    摘要翻译: 在电子镇流器中,半桥逆变器在LC电路的固有谐振频率附近驱动串联LC电路。 在LC电路的储能电容器之间产生相对高幅度的基本正弦的30 kHz输出电压。 几个即时启动荧光灯中的每一个与限流电容器串联连接,从而导致几个灯电容器串联组合,其中每一个都连接在容器电容器两端。 镇流器由普通的120伏/ 60赫兹的电力线通过全波整流器供电。 在该整流器的直流输出端存在具有与电力线电压相等的瞬时绝对值的直流电压。 在镇流器内,逆变器由等于电源线电压的峰值幅度的恒定幅度的直流电源供电。 通过与每个灯电容组合插入电源绘图电路,跨越一对辅助直流端子开发辅助直流电压。 当没有电流从辅助直流端子流出时,辅助直流电压的大小等于直流电源电压的大小。 辅助直流端子可获得的最大直流电流随着组合的灯电流的大小而变化,并被调整为等于从电力线抽取的电流的峰值幅值; 结果,哪个电流几乎是正弦的。

    Electronic ballast with two-transistor switching device
    6.
    发明授权
    Electronic ballast with two-transistor switching device 失效
    电子镇流器采用双晶体管开关器件

    公开(公告)号:US5426349A

    公开(公告)日:1995-06-20

    申请号:US107649

    申请日:1993-08-18

    申请人: Ole K. Nilssen

    发明人: Ole K. Nilssen

    摘要: A current-fed parallel-resonant self-oscillating electronic ballast includes four special switching devices, each serving the function of a single switching transistor in a full-bridge inverter. Each special switching device includes two series-connected field effect transistors synchronously gated via positive feedback of a sinusoidal output voltage. The reason for using two series-connected field-effect transistors in lieu of a single field-effect transistor of higher voltage rating relates to the fact that, for the DC supply voltages associated with certain electronic ballast circuits powered from commonly encountered power line voltages, field-effect transistors of lower voltage ratings (e.g., 400 Volt) are substantially lower in cost per-unit Volt-Ampere rating as compared with field-effect transistors of higher voltage ratings (e.g., 800 Volt). Thus, although such higher-voltage transistors are readily available, the net overall ballast cost will nevertheless be significantly reduced by using the special switching devices.

    摘要翻译: 电流并联谐振自振荡电子镇流器包括四个专用开关器件,每个专用开关器件在全桥逆变器中用作单个开关晶体管的功能。 每个特殊开关器件包括通过正弦输出电压的正反馈同步门控的两个串联连接的场效应晶体管。 使用两个串联连接的场效应晶体管代替具有较高额定电压额定值的单个场效应晶体管的原因涉及以下事实:对于由通常遇到的电源线电压供电的某些电子镇流器相关联的DC电源电压, 与具有较高额定电压(例如800伏特)的场效应晶体管相比,具有较低额定电压(例如,400伏特)的场效应晶体管的成本每单位伏特安培额定值要低得多。 因此,虽然这样的高压晶体管是容易获得的,但通过使用特殊的开关器件,整体镇流器的净成本将会显着降低。

    Extra cost-effective electronic ballast
    7.
    发明授权
    Extra cost-effective electronic ballast 失效
    超高性价比的电子镇流器

    公开(公告)号:US5191262A

    公开(公告)日:1993-03-02

    申请号:US819655

    申请日:1992-01-13

    申请人: Ole K. Nilssen

    发明人: Ole K. Nilssen

    摘要: A half-bridge inverter is powered from a constant DC voltage and provides an AC output voltage that is--in contrast with the usual squarewave voltage--describable as being a sinusoidal waveform with the tops clipped off at some fixed magnitude; or, described differently, a waveform composed of truncated sinusoidal waves; or, described still differently, a waveform having trapezoidally shaped half-cycles. This AC voltage is applied across the primary winding of a so-called reactance transformer, whose loosely coupled secondary winding is connected across a gas discharge lamp. The internal inductive reactance of the secondary winding constitutes a lamp ballasting means by way of limiting the magnitude of the resulting lamp current to a pre-established desired level. Potentially damaging parasitic resonances--which are very likely to occur under actual operational circumstances with an unloaded secondary winding when the primary winding is supplied with a squarewave voltage--are avoided because of the tuncated sinusoidal waveshape of the AC voltage; which truncated sinusoidal shape is effeciently attained by a combination of three factors: (i) using rapidly switching transistors in the inverter; (ii) having the transformer's primary winding exhibit a substantial shunt inductance; and (iii) providing for a slow-down capacitor coupled directly across the primary winding, thereby to substantially slow down the rise time of the inverter's output voltage as compared with what it would have been if it were to have been determined solely by the high switching speed of the transistors.

    摘要翻译: 半桥逆变器由恒定的直流电压供电,并提供一个交流输出电压,与通常的方波电压相反,可以描述为一个正弦波形,顶端以一定的幅度被截止; 或者以不同的方式描述由截断的正弦波组成的波形; 或者不同地描述具有梯形半周期的波形。 该交流电压施加在所谓的电抗变压器的初级绕组上,其中松散耦合的次级绕组连接在气体放电灯上。 次级绕组的内部感抗通过将所得到的灯电流的大小限制到预先确定的期望水平来构成灯镇流装置。 由于交流电压的正弦波形的波形,避免了在初级绕组提供方波电压时,在实际运行情况下可能会发生无负载次级绕组的潜在的寄生谐振。 截断的正弦形状通过三个因素的组合有效地实现:(i)使用逆变器中的快速开关晶体管; (ii)使变压器的初级绕组具有相当大的并联电感; 和(iii)提供直接耦合在初级绕组上的减速电容器,从而基本上减慢了逆变器的输出电压的上升时间,如果仅仅由高电平 晶体管的切换速度。

    Load activated normally quiescent waveform generator
    9.
    发明授权
    Load activated normally quiescent waveform generator 失效
    负载激活正常静态波形发生器

    公开(公告)号:US4228405A

    公开(公告)日:1980-10-14

    申请号:US32603

    申请日:1979-04-23

    摘要: There is disclosed a novel compact power oscillator which is normally quiescent until applied to a load, to produce, under load, a unique waveform which has a unique application to self-protective devices and medical uses. The oscillator includes a high gain inverting amplifier, preferably a Darlington pair constituted by a germanium output transistor driven by a small signal transistor, a transformer, a D.C. source such as a battery, and a pair of output electrodes.

    摘要翻译: 公开了一种新颖的紧凑型功率振荡器,其通常静止直到施加到负载,以在负载下产生独特的波形,其具有对自保护装置和医疗用途的独特应用。 振荡器包括高增益反相放大器,优选地由由小信号晶体管驱动的锗输出晶体管,变压器,诸如电池的直流源和一对输出电极构成的达林顿对。

    Fail-safe constant amplitude signal generator
    10.
    发明授权
    Fail-safe constant amplitude signal generator 失效
    故障安全恒幅信号发生器

    公开(公告)号:US4009454A

    公开(公告)日:1977-02-22

    申请号:US590515

    申请日:1975-06-26

    申请人: John O. G. Darrow

    发明人: John O. G. Darrow

    IPC分类号: B61L7/06 H03K3/30 H03B5/12

    CPC分类号: B61L7/067 H03K3/30

    摘要: This disclosure relates to a fail-safe constant amplitude signal generator including a shunt regulator for supplying d.c. operating potential to a free-running transistor oscillator as well as for controlling the quality factor of a resonant tuned circuit and, in turn, the oscillator so that an a.c. output signal is capable of being produced with a known amplitude which cannot be changed by any critical circuit or component failure.

    摘要翻译: 本公开涉及一种故障安全恒定幅度信号发生器,包括用于提供直流电流的分流调节器。 对于自由运行的晶体管振荡器的工作电位以及用于控制谐振调谐电路的品质因数,以及振荡器,使得一个等 输出信号能够以已知的幅度产生,该幅度不能被任何关键电路或元件故障所改变。