-
公开(公告)号：US20170332464A1
公开(公告)日：2017-11-16
申请号：US15587408
申请日：2017-05-05
发明人： Hsin-Wu HUANG
CPC分类号： H05B41/16 , H05B41/282 , H05B41/34 , H05B41/38 , H05B41/3927
摘要： An electronic device adapted for adjusting a light effect of a CCFL is provided. The electronic device is electronically connected to the CCFL. The electronic device comprises a PWM controller configured to receive at least a digital signal and to output a specific-frequency reference signal according to the digital signal, a driver electronically connected to the PWM controller and configured to output a first voltage signal according to the specific-frequency reference signal, and a transformer electronically connected to the driver and the CCFL. The transformer amplifies the first voltage signal to generate a second voltage signal and sends the second voltage signal to the CCFL. A light effect is generated by the CCFL according to the second voltage signal.
-
公开(公告)号：US09578726B2
公开(公告)日：2017-02-21
申请号：US13672149
申请日：2012-11-08
发明人： Masashi Okamoto
IPC分类号： H05B41/392 , G03B21/20 , H05B41/16 , G03B21/14 , H05B41/292
CPC分类号： H05B41/16 , G03B21/14 , G03B21/2053 , H05B41/2928 , H05B41/3928 , Y02B20/202
摘要： A discharge lamp lighting apparatus for lighting a discharge lamp in which an electric discharge medium, which contains xenon, is enclosed in an electric discharge container, and a pair of cathode electrode and anode electrode for main discharge is arranged to face each other, comprises a starter for generating dielectric breakdown in the electric discharge container of a discharge lamp, and a power supply circuit for supplying discharge current to the discharge lamp, wherein the power supply circuit has an output current modulation circuit for modulating the magnitude of current passed through the discharge lamp in at least a lighting steady state, according to a modulation signal, and wherein the output current modulation circuit controls speed of change so as to be 2.6 A or less per millisecond in case the magnitude of the lamp current per square millimeter in a cross section of the cathode electrode decreases.
摘要翻译： 一种放电灯点亮装置，用于点燃放电灯，其中包含氙的放电介质被封装在放电容器中，并且一对用于主放电的阴极电极和阳极电极被布置为彼此面对，包括 用于在放电灯的放电容器中产生电介质击穿的起动器和用于向放电灯供给放电电流的电源电路，其中，电源电路具有输出电流调制电路，用于调制通过放电的电流的大小 在调光信号中至少具有照明稳定状态的灯，并且其中，输出电流调制电路控制变化速度，使得在每十亿分之一平方毫米的灯电流的大小的情况下，每毫秒为2.6A或更小 阴极电极的截面减小。
-
公开(公告)号：US09226377B2
公开(公告)日：2015-12-29
申请号：US14330437
申请日：2014-07-14
IPC分类号： H05B41/16 , H05B41/282 , H05B41/392 , H05B33/08
CPC分类号： H05B41/16 , H05B33/0809 , H05B41/2828 , H05B41/3925 , Y02B20/19
摘要： A circuit for controlling a lighting load may operate to minimize flicker in the lighting load and electromagnetic interference (EMI) noise generated on an AC voltage supply for the lighting load. The circuit comprises a bus-voltage-generating circuit for generating a bus voltage, a load regulation circuit having an inverter circuit, and a high speed control circuit characterized by a cutoff frequency much greater than a frequency of a voltage ripple on the bus voltage. The control circuit may comprise an error amplifier circuit configured to spread the frequency of operation of the inverter circuit at a set intensity level of the lighting load into a spread spectrum of frequencies to reduce the time average of peaks of the spectrum of frequencies and peak EMI levels. The circuit may also comprise a non-linear amplifier circuit amplifying a lamp-current-feedback signal representative of the magnitude of the load current through the lighting load.
摘要翻译： 用于控制照明负载的电路可以操作以最小化照明负载中的闪烁和用于照明负载的AC电压源上产生的电磁干扰（EMI）噪声。 该电路包括用于产生总线电压的总线电压产生电路，具有逆变器电路的负载调节电路和特征在于远大于总线电压上的电压纹波频率的截止频率的高速控制电路。 控制电路可以包括误差放大器电路，其被配置为将逆变器电路的工作频率以照明负载的设定强度水平扩展到频率扩展频谱中，以减少频谱峰值和峰值EMI的时间平均 水平。 电路还可以包括放大灯电流反馈信号的非线性放大器电路，其表示通过照明负载的负载电流的大小。
-
公开(公告)号：US20150270105A1
公开(公告)日：2015-09-24
申请号：US14221132
申请日：2014-03-20
发明人： Satoru Kobayashi , Soonam Park , Dmitry Lubomirsky , Hideo Sugai
IPC分类号： H01J37/32 , H01J37/244
CPC分类号： H01J37/32229 , H01J7/24 , H01J19/80 , H01J37/244 , H01J37/32201 , H01J37/32302 , H01J37/32311 , H01J37/32935 , H01J37/3299 , H05B41/16
摘要： A system provides post-match control of microwaves in a radial waveguide. The system includes the radial waveguide, and a signal generator that provides first and second microwave signals that have a common frequency. The signal generator adjusts a phase offset between the first and second signals in response to a correction signal. The system also includes first and second electronics sets, each of which amplifies a respective one of the first and second microwave signals. The system transmits the amplified, first and second microwave signals into the radial waveguide, and matches an impedance of the amplified microwave signals to an impedance presented by the waveguide. The system also includes at least two monitoring antennas disposed within the waveguide. A signal controller receives analog signals from the monitoring antennas, determines the digital correction signal based at least on the analog signals, and transmits the correction signal to the signal generator.
-
公开(公告)号：US09006980B2
公开(公告)日：2015-04-14
申请号：US13967369
申请日：2013-08-15
发明人： Shih-Chung Huang , Kuang-Yu Jung
IPC分类号： H05B41/06 , H05B41/16 , H05B41/282 , H05B41/285
CPC分类号： H05B41/16 , H05B41/2828 , H05B41/2853
摘要： An apparatus and a method for driving a fluorescent lamp are provided. The apparatus submitted by the present invention includes an LC resonator and an automatic frequency tracing circuit. The LC resonator is used for receiving and converting a square signal to generate a sinusoidal driving signal for driving the fluorescent lamp. The automatic frequency tracing circuit is used for making a frequency of the sinusoidal driving signal automatically following a resonant frequency of the LC resonator according to a feedback signal related to the sinusoidal driving signal.
摘要翻译： 提供了用于驱动荧光灯的装置和方法。 本发明提供的装置包括LC谐振器和自动频率跟踪电路。 LC谐振器用于接收和转换平方信号以产生用于驱动荧光灯的正弦驱动信号。 自动频率跟踪电路用于根据与正弦驱动信号有关的反馈信号，使LC谐振器的谐振频率自动跟随正弦驱动信号的频率。
-
6.发明申请DISCHARGE LAMP DRIVING DEVICE, PROJECTOR, AND METHOD FOR DRIVING A DISCHARGE LAMP 审中-公开放电灯驱动装置，投影仪和驱动放电灯的方法公开(公告)号：US20150055097A1
公开(公告)日：2015-02-26
申请号：US14529722
申请日：2014-10-31
发明人： Keishi KIMURA
CPC分类号： G03B21/2053 , G02B27/2264 , G03B35/16 , H04N9/3155 , H04N13/341 , H04N13/363 , H04N13/398 , H05B41/16 , H05B41/24 , H05B41/2887 , Y02B20/202
摘要： A discharge lamp driving device includes: a direct-current power supply section (a power supply section) that controls a current of power to be supplied to a discharge lamp from input power, and outputs the current; a voltage detecting section that detects a lamp voltage (a drive voltage) of the discharge lamp; and a control section that controls a modulation factor of a lamp current (a drive current) on which amplitude modulation has been performed, the lamp current (the drive current) which is supplied to the discharge lamp from the direct-current power supply section (the power supply section), in accordance with the detected lamp voltage (drive voltage) of the discharge lamp.
摘要翻译： 放电灯驱动装置包括：直流电源部（电源部），其从输入电力控制向放电灯供电的电力电流，并输出电流; 电压检测部，其检测放电灯的灯电压（驱动电压）; 以及控制部，其控制已经进行了幅度调制的灯电流（驱动电流）的调制度，从直流电源部提供给放电灯的灯电流（驱动电流） 电源部），根据检测到的放电灯的灯电压（驱动电压）。
-
公开(公告)号：US08664886B2
公开(公告)日：2014-03-04
申请号：US13334760
申请日：2011-12-22
申请人： Michael Ostrovsky
发明人： Michael Ostrovsky
CPC分类号： H05B41/16 , H05B33/0815 , H05B41/282 , H05B41/392 , Y02B20/346
摘要： Timer-based switching circuit synchronization in an electrical dimmer is provided. The energizing of a switching circuit in a dimmer is synchronized with an AC wave to facilitate providing by the dimmer electrical power to a load. The synchronizing includes starting a timer having a predetermined timeout, responsive to receipt of a zero-crossing signal. Responsive to receipt of a subsequent zero-crossing signal prior to reaching the timeout, the timer is restarted, and responsive to expiration of the timeout, a switching circuit is energized at a predetermined firing angle with respect to the zero-crossing signal to supply electrical power to the load.
摘要翻译： 提供了电调光器中基于定时器的开关电路同步。 调光器中的开关电路的激励与AC波同步以便于通过调光器电力向负载提供。 同步包括启动具有预定超时的定时器，响应于接收到过零信号。 响应于在到达超时之前接收到的过零信号，定时器被重新启动，并且响应于超时期满，开关电路相对于过零信号以预定的触发角通电，以提供电 电源给负载。
-
8.发明申请公开(公告)号：US20130162168A1
公开(公告)日：2013-06-27
申请号：US13334760
申请日：2011-12-22
申请人： Michael OSTROVSKY
发明人： Michael OSTROVSKY
CPC分类号： H05B41/16 , H05B33/0815 , H05B41/282 , H05B41/392 , Y02B20/346
摘要： Timer-based switching circuit synchronization in an electrical dimmer is provided. The energizing of a switching circuit in a dimmer is synchronized with an AC wave to facilitate providing by the dimmer electrical power to a load. The synchronizing includes starting a timer having a predetermined timeout, responsive to receipt of a zero-crossing signal. Responsive to receipt of a subsequent zero-crossing signal prior to reaching the timeout, the timer is restarted, and responsive to expiration of the timeout, a switching circuit is energized at a predetermined firing angle with respect to the zero-crossing signal to supply electrical power to the load.
摘要翻译： 提供了电调光器中基于定时器的开关电路同步。 调光器中的开关电路的激励与AC波同步以便于通过调光器电力向负载提供。 同步包括启动具有预定超时的定时器，响应于接收到过零信号。 响应于在到达超时之前接收到的过零信号，定时器被重新启动，并且响应于超时期满，开关电路相对于过零信号以预定的触发角通电，以提供电 电源给负载。
-
公开(公告)号：US20110187273A1
公开(公告)日：2011-08-04
申请号：US13017363
申请日：2011-01-31
摘要： A lighting control system includes a plurality of luminaires each having a selectively powerable first light source and a selectively powerable second light source. The luminaires are powerable and controllable by a common AC power source. A signal receiving controller of each of the luminaires is electrically connected to the first light source and the second light source and selectively causes power to be routed to either the first light source or the second light source dependent on a control signal sent via the AC power source.
摘要翻译： 照明控制系统包括多个灯具，每个照明器具有选择性供电的第一光源和可选择性地供电的第二光源。 灯具是可通过公共交流电源供电和控制的。 每个灯具的信号接收控制器电连接到第一光源和第二光源，并且根据经由AC电源发送的控制信号选择性地使功率被路由到第一光源或第二光源 资源。
-
公开(公告)号：US20090189535A1
公开(公告)日：2009-07-30
申请号：US12011771
申请日：2008-01-29
IPC分类号： H05B41/24
CPC分类号： H05B41/16 , H05B41/2853
摘要： A transformer wiring method and apparatus for fluorescent lighting are described. The fluorescent lighting apparatus includes a transformer and a ballast. An installer is easily able to balance the system load because each fluorescent lighting apparatus includes its own transformer and may be connected directly to a facility's three phase power distribution while still operating at rated voltages. Moreover, the ballast is protected from surges and stray voltages thereby reducing the frequency of ballast failures.
摘要翻译： 描述了用于荧光照明的变压器布线方法和装置。 荧光照明装置包括变压器和镇流器。 安装者很容易平衡系统负载，因为每个荧光照明设备都包括自己的变压器，并且可以直接连接到设备的三相配电，同时仍然在额定电压下工作。 此外，镇流器可以防止浪涌和杂散电压，从而降低镇流器故障的频率。
-
-
-
-
-
-
-
-
-
搜索结果
118 条记录 (耗时 0.054 秒)
