会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 5. 发明授权
    • Adaption circuit for operating a high-pressure discharge lamp
    • 用于操作高压放电灯的自适应电路
    • US4728865A
    • 1988-03-01
    • US846653
    • 1986-03-31
    • Johny A. J. Daniels
    • Johny A. J. Daniels
    • H05B41/16H05B41/231H05B37/02
    • H05B41/231Y10S315/07
    • An adaptation circuit (3) for operating a high-pressure discharge lamp (1) via a controlled semiconductor switch (4) in series with the lamp. The control circuit for the switch (4) to comprise a voltage division circuit (5,6). The voltage division circuit is connected in parallel with the switch when the lamp is connected to the circuit output terminals (E,F) and one branch of the voltage division circuit comprises a parallel-combination of a capacitor (57) and a resistor (56). Thus, the variation of the voltage across the lamp influences the control of the semiconductor switch so that it is possible to stabilize, for the major part, the power dissipated by the lamp against, variation in the supply voltage and against lamp voltage variations during the life of the lamp.
    • 一种用于经由与灯串联的受控半导体开关(4)操作高压放电灯(1)的适配电路(3)。 用于开关(4)的控制电路包括分压电路(5,6)。 当灯连接到电路输出端(E,F)时,分压电路与开关并联,并且分压电路的一个支路包括电容器(57)和电阻器(56)的并联组合 )。 因此,灯两端的电压的变化影响半导体开关的控制,使得主要部分能够抵抗灯的功率,电源电压的变化和灯电压变化的稳定性 灯的寿命。
    • 8. 发明授权
    • Cut-off arrangement for and method of protecting a ballast-starter
circuit from high pressure sodium lamp cycling malfunction
    • 用于保护镇流器起动器电路的高压钠灯循环故障的切断装置和方法
    • US4207500A
    • 1980-06-10
    • US969384
    • 1978-12-14
    • George DuveDaniel DiCarlo
    • George DuveDaniel DiCarlo
    • H01H47/00H01H47/24H05B37/03H05B41/231
    • H05B37/03H01H47/004H01H47/24Y10S315/02
    • A cycling cut-off arrangement and method of protecting from burn-out a ballast-starter of a luminaire having a power source normally connected to the ballast-starter, and a high pressure sodium lamp across which the ballast-starter supplies voltage of predetermined magnitude to operate the lamp, in the event of a cycling malfunction wherein the lamp is extinguished and the ballast-starter applies a voltage of greater magnitude than the predetermined magnitude across the extinguished lamp. The voltage across the lamp is detected, and a current signal is generated when the voltage magnitude across the lamp reaches a threshold magnitude which is greater than said predetermined magnitude. In response to the generation of the current signal, the power source is disabled from the ballast-starter to protect the latter from damage. A latching-type switch is employed to maintain the disabled condition of the ballast-starter, and a manual reset push button serves to reset the ballast-starter back to its normally-connected condition with the power source. A timer switch generates a timer signal lasting for a predetermined time period which begins upon power resumption after a power malfunction of duration less than said predetermined time period. The timer signal makes the latching-type switch inoperative during the predetermined time period to thereby prevent disablement of the ballast-starter in the event of a power malfunction.
    • 循环切断装置和防止燃烧通常连接到镇流器起动器的电源的照明器的镇流器起动器的方法以及镇流器起动器提供预定大小的电压的高压钠灯 以在灯熄灭的循环故障的情况下操作灯,并且镇流器起动器在熄灭的灯处施加比预定大小更大的电压的电压。 检测灯两端的电压,并且当灯两端的电压幅度达到大于所述预定幅度的阈值幅度时,产生电流信号。 响应于当前信号的产生,电源从镇流器起动器禁用,以防止损坏。 使用闭锁型开关来保持镇流器起动器的禁用状态,并且手动复位按钮用于将镇流器起动器重新设置为与电源的正常连接状态。 定时器开关产生持续预定时间段的定时器信号,该预定时间段在持续时间小于所述预定时间段的功率故障之后在恢复功率时开始。 定时器信号使得锁定型开关在预定时间段期间不起作用,从而防止在电源故障的情况下镇流器起动器的禁用。
    • 9. 发明授权
    • Discharge lamp operating circuit
    • 放电灯工作电路
    • US4187449A
    • 1980-02-05
    • US904059
    • 1978-05-08
    • David W. Knoble
    • David W. Knoble
    • H05B41/282H05B41/231H05B41/30H05B41/16
    • H05B41/231H05B41/30
    • Circuit for providing low ripple DC power supply from a single-phase AC source without the use of a filter capacitor. The circuit comprises a high leakage reactance transformer with a primary winding and two secondary windings arranged with the secondary windings on opposite sides of the primary winding, a leading current circuit connected to one secondary winding and a lagging current circuit connected to the other secondary winding, and a three-phase full wave rectifier bridge connected to the leading and lagging current circuits to provide a low ripple DC power output. The DC power supply circuit is used with a pulse generating circuit to provide pulsed operation of a gaseous discharge lamp such as a high pressure sodium vapor lamp, and produces desirable relationship of lamp watts to lamp volts for improved lamp life and uniformity of illumination.
    • 用于从不使用滤波电容器的单相交流电源提供低纹波直流电源的电路。 该电路包括具有初级绕组的高漏电抗变压器和在初级绕组的相对侧上布置有次级绕组的两个次级绕组,连接到一个次级绕组的引导电流电路和连接到另一个次级绕组的滞后电流电路, 并连接到前导和滞后电流电路的三相全波整流桥,以提供低纹波直流电源输出。 直流电源电路与脉冲发生电路一起使用以提供诸如高压钠蒸气灯的气体放电灯的脉冲操作,并且产生灯瓦特与灯电压的期望关系,以提高灯的寿命和照明的均匀性。
    • 10. 发明授权
    • Electric discharge lamp control circuit having a temperature dependent
capacitor
    • 具有温度依赖性电容器的放电灯控制电路
    • US4134042A
    • 1979-01-09
    • US833152
    • 1977-09-14
    • Johan F. T. van Heemskerck Veeckens
    • Johan F. T. van Heemskerck Veeckens
    • H01J61/56H05B41/16H05B41/231H01J7/44H01J17/34
    • H01J61/56H05B41/231Y10S315/05
    • An improved control circuit for an electric discharge lamp includes a temperature-dependent capacitor connected in series or in parallel with the discharge lamp. The capacitor preferably has a negative temperature characteristic and is responsive to the heat generated in the discharge lamp. During the start-up period, the lamp temperature is low and the capacitance is relatively high, whereas in the operating condition of the lamp its temperature increases and the capacitance of the capacitor drops to a relatively low value. In the series arrangement, the starting current of the lamp is thereby increased over the operating current to promote better ignition of the lamp. Similarly, in the parallel arrangement the high capacitance capacitor facilitates lamp ignition, whereas during normal lamp operation the low capacitance shunt branch effectively appears as an open circuit exerting minimal influence on the lamp operation.
    • 一种用于放电灯的改进的控制电路包括与放电灯串联或并联连接的温度依赖电容器。 电容器优选具有负温度特性并且对放电灯中产生的热量有反应。 在启动期间,灯温度低,电容相对较高,而在灯的工作状态下,其温度升高,电容器的电容下降到相对较低的值。 在串联装置中,灯的启动电流因此在工作电流上增加,以促进灯的更好的点火。 类似地,在并联布置中,高容量电容器便于灯点亮,而在正常的灯操作期间,低电容分流支路有效地表现为对灯操作施加最小影响的开路。