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    • 7. 发明授权
    • Automatic switch dimmer device
    • 自动开关调光装置
    • US06275163B1
    • 2001-08-14
    • US09138833
    • 1998-08-24
    • Lev BogoradPaul SoccoliMichael Ostrovsky
    • Lev BogoradPaul SoccoliMichael Ostrovsky
    • G08B2100
    • H05B39/083H05B37/0227Y02B20/44
    • An occupancy sensor and an automatic dimmer are connected in series with a light source. The detection of motion in the viewing area of the sensor starts the automatic dimmer which moves from its minimum brightness level to its maximum brightness level. One embodiment of the invention includes a key which can be operated to stop the automatic dimmer at some brightness level below the maximum brightness level which is reached if the key is not operated. A second embodiment provides a presetting device whereby the brightness level can be preset. When all motion in the viewing area ceases the automatic dimmer returns the brightness level to the minimum level at a slow rate.
    • 占用传感器和自动调光器与光源串联连接。 在传感器的观察区域中的运动检测开始自动调光器,其从最小亮度水平移动到其最大亮度水平。 本发明的一个实施例包括一个键,其可以被操作以在低于最大亮度水平的某个亮度级别停止自动调光器,该最大亮度水平是在键未被操作时达到的。 第二实施例提供一种可以预设亮度水平的预设装置。 当观察区域中的所有运动停止时,自动调光器以较慢的速率将亮度水平恢复到最小水平。
    • 8. 发明授权
    • Constant current supply over a wide range of input voltages
    • 恒定电流供应范围广泛的输入电压
    • US6031750A
    • 2000-02-29
    • US219536
    • 1998-12-22
    • Damon F. BruccoleriPaul SoccoliMichael OstrovskyAlfred J. Lombardi
    • Damon F. BruccoleriPaul SoccoliMichael OstrovskyAlfred J. Lombardi
    • G05F3/18H02M7/06
    • G05F3/18H02M7/06
    • Two transistors are arranged as a Darlington amplifier to produce a constant current through an output resistor coupled to the emitter of the second transistor. AC power is supplied to a full wave bridge which converts the AC power from the source to a DC signal. A first zener diode and the base to emitter voltage drops of the transistors control the voltage across the output resistor. As the input voltage to the bridge is increased above the voltage between the emitter of the second transistor and ground, the extra voltage will be dropped across the collector to emitter of the second transistor. The same current will flow through the output resistor regardless of any input voltage in a defined range. By adding a resistor and diode and detecting the voltage between the resistor and diode with respect to the circuit the zero crossings can be detected.
    • 两个晶体管被布置为达林顿放大器,以通过耦合到第二晶体管的发射极的输出电阻产生恒定电流。 AC电源被提供给全波桥,其将来自源的AC电力转换成DC信号。 第一个齐纳二极管和晶体管的基极到发射极电压降控制输出电阻两端的电压。 当到桥的输入电压增加到高于第二晶体管的发射极与地之间的电压时,额外的电压将被降低到第二晶体管的集电极到发射极。 相同的电流将流过输出电阻,而不管任何输入电压在规定范围内。 通过添加电阻和二极管并检测电阻和二极管之间相对于电路的电压,可以检测到过零点。