公开(公告)号：US20110121747A1

公开(公告)日：2011-05-26

申请号：US12623855

申请日：2009-11-23

申请人： Nanu Brates ,  Bhavinkumar Shah ,  Yiyoung Sun

发明人： Nanu Brates ,  Bhavinkumar Shah ,  Yiyoung Sun

IPC分类号： H05B41/36

CPC分类号： H05B41/2925 ,  Y02B20/208

摘要： An apparatus and method for detecting an end of life (EOL) condition of a lamp that exhibits a re-ignition behavior. A voltage is applied to the lamp to cause the lamp to start emitting light, and a lamp re-ignition voltage to normal lamp voltage difference after a mask-off period expires is monitored. The lamp is determined to have reached the EOL condition when a predetermined percentage of high difference half cycles occur during a set number of lamp voltage half cycles that are measured during a measurement window. The method continuously monitors the lamp re-ignition voltage to normal lamp voltage difference and records whenever the lamp re-ignition voltage to normal lamp voltage difference is higher than the re-ignition difference threshold level at any lamp voltage half cycle. An EOL lamp is detected when a predetermined number of high difference half cycles occurs in a set total number of lamp voltage half cycles measured in a rolling measurement window.

摘要翻译： 一种用于检测呈现再起燃行为的灯的寿命终止（EOL）状况的装置和方法。 对灯施加电压以使灯开始发光，并且监视在遮光期间到期之后灯点亮电压与正常灯电压差异。 当在测量窗口期间测量的设定数量的灯电压半周期期间发生预定百分比的高差异半周期时，确定灯已达到EOL状态。 该方法连续监控灯点火电压与正常的灯电压差，并记录每当灯点亮电压与正常灯电压差高于任何灯电压半周期的再点火差阈值电平。 当在滚动测量窗口中测量的设定的灯电压半周期的总数中发生预定数量的高差异半周期时，检测到EOL灯。

公开(公告)号：US08212496B2

公开(公告)日：2012-07-03

申请号：US12623855

申请日：2009-11-23

申请人： Nanu Brates ,  Bhavinkumar Shah ,  Yiyoung Sun

发明人： Nanu Brates ,  Bhavinkumar Shah ,  Yiyoung Sun

IPC分类号： H05B37/02

CPC分类号： H05B41/2925 ,  Y02B20/208

摘要： An apparatus and method for detecting an end of life (EOL) condition of a lamp that exhibits a re-ignition behavior. A voltage is applied to the lamp to cause the lamp to start emitting light, and a lamp re-ignition voltage to normal lamp voltage difference after a mask-off period expires is monitored. The lamp is determined to have reached the EOL condition when a predetermined percentage of high difference half cycles occur during a set number of lamp voltage half cycles that are measured during a measurement window. The method continuously monitors the lamp re-ignition voltage to normal lamp voltage difference and records whenever the lamp re-ignition voltage to normal lamp voltage difference is higher than the re-ignition difference threshold level at any lamp voltage half cycle. An EOL lamp is detected when a predetermined number of high difference half cycles occurs in a set total number of lamp voltage half cycles measured in a rolling measurement window.

摘要翻译： 一种用于检测呈现再起燃行为的灯的寿命终止（EOL）状况的装置和方法。 对灯施加电压以使灯开始发光，并且监视在遮光期间到期之后灯点亮电压与正常灯电压差异。 当在测量窗口期间测量的设定数量的灯电压半周期期间发生预定百分比的高差异半周期时，确定灯已达到EOL状态。 该方法连续监控灯点火电压与正常的灯电压差，并记录每当灯点亮电压与正常灯电压差高于任何灯电压半周期的再点火差阈值电平。 当在滚动测量窗口中测量的设定的灯电压半周期的总数中发生预定数量的高差异半周期时，检测到EOL灯。

公开(公告)号：US5262699A

公开(公告)日：1993-11-16

申请号：US939027

申请日：1992-09-01

申请人： Yiyoung Sun ,  Long T. Nguyen

发明人： Yiyoung Sun ,  Long T. Nguyen

IPC分类号： H05B41/285 ,  H05B37/02

CPC分类号： H05B41/2855 ,  Y02B20/19 ,  Y10S315/04 ,  Y10S315/05 ,  Y10S315/07

摘要： A circuit for starting and operating a discharge lamp, such as a compact fluorescent lamp, at high frequency from a 60 Hz AC supply. The circuit includes a DC power supply coupled to a pair of AC input terminals for generating a DC voltage. An oscillator coupled to the DC power supply includes a pair of semiconductor transistors and a drive transformer having a primary winding and at least one secondary winding. A load coupled to the output of the oscillator comprises a series combination of the primary winding of the drive transformer and a tank circuit including a tank inductor and a tank capacitor. Suitable means for connecting a discharge lamp in parallel with the tank capacitor is provided. An oscillator sensing and controlling circuit responsive to various lamp failure modes is coupled to the secondary winding of the transformer and reduces the output of the oscillator after a predetermined time delay by shunting the base of either one of the semiconductor switches of the oscillator. Upon replacement of the failed lamp, normal operation of the oscillator is resumed without having to disconnect the AC supply.

摘要翻译： 用于从60Hz AC电源以高频率启动和操作诸如紧凑型荧光灯的放电灯的电路。 电路包括耦合到一对AC输入端的DC电源，用于产生DC电压。 耦合到DC电源的振荡器包括一对半导体晶体管和具有初级绕组和至少一个次级绕组的驱动变压器。 耦合到振荡器的输出的负载包括驱动变压器的初级绕组和包括槽电感器和储能电容器的储能回路的串联组合。 提供了用于与放电电容器并联连接放电灯的合适装置。 响应于各种灯故障模式的振荡器感测和控制电路耦合到变压器的次级绕组，并且在预定时间延迟之后通过分流振荡器的任一个半导体开关的基极来减小振荡器的输出。 在更换故障灯时，恢复振荡器的正常操作，而无需断开交流电源。

公开(公告)号：US08084956B2

公开(公告)日：2011-12-27

申请号：US12104789

申请日：2008-04-17

申请人： Kenichi Fukuda ,  Yiyoung Sun

发明人： Kenichi Fukuda ,  Yiyoung Sun

IPC分类号： H05B37/02

CPC分类号： H05B41/2883 ,  H05B41/3928 ,  Y02B20/202

摘要： An electronic ballast includes a microprocessor which is programmed to read a voltage value corresponding to an output of the electronic ballast, output a signal which controls an amount of power outputted by the electronic ballast in accordance with the voltage value, read an external voltage value, and select one of a trimming mode and a normal mode as an operating mode based on the external voltage value. The microprocessor is also programmed, when operating in the trimming mode, to set an internal reference value, compare the voltage value corresponding to the output of the electronic ballast with the internal reference value, trim an amount of power outputted by the electronic ballast to a resistor corresponding to an impedance of a High Intensity Discharge lamp by adjusting the signal based upon the comparison, and store a result of the signal adjustment.

摘要翻译： 电子镇流器包括微处理器，其被编程为读取对应于电子镇流器的输出的电压值，输出根据电压值控制电子镇流器输出的功率量的信号，读取外部电压值， 并且基于外部电压值选择修剪模式和正常模式之一作为操作模式。 微处理器也被编程，当在微调模式下操作时，设置内部参考值，将与电子镇流器的输出相对应的电压值与内部参考值进行比较，将电子镇流器输出的功率量调整为 电阻器，其对应于高强度放电灯的阻抗，通过基于比较调节信号，并存储信号调整的结果。

公开(公告)号：US6144172A

公开(公告)日：2000-11-07

申请号：US311568

申请日：1999-05-14

申请人： Yiyoung Sun

发明人： Yiyoung Sun

IPC分类号： H05B41/292 ,  G05F1/00

CPC分类号： H05B41/2928 ,  Y10S315/05

摘要： A circuit arrangement and method thereof for operating high intensity discharge (HID) lamps with a lower frequency rectangular current waveform, in which the frequency of the higher frequency ripple superimposed on the lower frequency rectangular current is modulated by a pseudo-random noise signal. The pseudo-random noise may be generated by a feedback shift register. The feedback shift register may incorporate run length interrupt logic to address PWM frequency stagnation by reducing the longest run length or lengths of the feedback shift register. The feedback shift register may also or alternatively include an RC low pass analog filter to address PWM frequency stagnation. The center frequency and frequency band of the pseudo-randomly generated noise may be adjustable.

摘要翻译： 一种用于操作具有较低频率矩形电流波形的高强度放电（HID）灯的电路装置及其方法，其中叠加在较低频率矩形电流上的较高频率纹波的频率由伪随机噪声信号调制。 伪随机噪声可以由反馈移位寄存器产生。 反馈移位寄存器可以包括游程长度中断逻辑，以通过减少反馈移位寄存器的最长游程长度或长度来解决PWM频率停滞。 反馈移位寄存器还可以或者可选地包括RC低通模拟滤波器来解决PWM频率停滞。 伪随机产生的噪声的中心频率和频带可以是可调节的。

公开(公告)号：US20070210727A1

公开(公告)日：2007-09-13

申请号：US11368667

申请日：2006-03-07

申请人： Yiyoung Sun ,  Takeshi Goriki ,  Kenichi Fukuda

发明人： Yiyoung Sun ,  Takeshi Goriki ,  Kenichi Fukuda

IPC分类号： H05B37/02

CPC分类号： H05B41/2983

摘要： A method and apparatus for protecting a discharge lamp lighting device from damage due to mis-wiring of a source of electrical power to the discharge lamp lighting device. The protection apparatus includes a detector, a comparer and an inhibitor. The detector samples at least one monitor point associated with the discharge lamp lighting device to obtain at least one detection voltage. The comparer compares the at least one detection voltage with a reference voltage. The inhibitor inhibits an operation of the discharge lamp lighting device when the comparer determines that a mis-wiring of the source of electrical power to the discharge lamp lighting device exists.

摘要翻译： 一种用于保护放电灯点亮装置免受由放电灯点亮装置引起的电源的误配的损坏的方法和装置。 保护装置包括检测器，比较器和抑制器。 检测器对与放电灯点亮装置相关联的至少一个监测点进行采样以获得至少一个检测电压。 比较器将至少一个检测电压与参考电压进行比较。 当比较器确定存在对放电灯点亮装置的电力源的错误布线时，抑制器抑制放电灯点亮装置的操作。

公开(公告)号：US5574335A

公开(公告)日：1996-11-12

申请号：US284779

申请日：1994-08-02

申请人： Yiyoung Sun

发明人： Yiyoung Sun

IPC分类号： H05B41/24 ,  H05B41/298 ,  H05B37/00

CPC分类号： H05B41/2985 ,  Y10S315/05

摘要： A ballast includes an inverter for providing an AC voltage to a discharge lamp. As the lamp approaches end-of-life, a DC voltage component develops across the lamp. The ballast includes circuitry for monitoring the condition of each of the cathodes by measuring this DC voltage component. After a predetermined increase in this DC voltage component, the inverter is disabled in order to prevent excessive heating of the cathodes. The inverter is also disabled as a result of a resonant or near resonant mode condition of a tank circuit caused by an open circuit condition or a leaking lamp.

摘要翻译： 镇流器包括用于向放电灯提供AC电压的逆变器。 当灯接近寿命时，直流电压分量在整个灯泡上形成。 镇流器包括通过测量该直流电压分量来监测每个阴极的状况的电路。 在该直流电压分量预定增加之后，逆变器被禁用以防止阴极的过度加热。 由于开路状况或泄漏灯引起的电路谐振或接近共振状态，逆变器也被禁用。

公开(公告)号：US08664872B2

公开(公告)日：2014-03-04

申请号：US12710664

申请日：2010-02-23

申请人： Kenichi Fukuda ,  Yiyoung Sun

发明人： Kenichi Fukuda ,  Yiyoung Sun

IPC分类号： H05B37/00

CPC分类号： H05B41/2883

摘要： An apparatus for operating a gas discharge lamp. The apparatus includes an electronic ballast and a controller. The electronic ballast includes a half bridge configuration, a full bridge configuration, a first network, and a second network. The electronic ballast is controlled by a controller that causes the half bridge configuration to ignite an arc between electrodes of the gas discharge lamp in an igniter function that uses the first network, to switch the electronic ballast from the half bridge configuration to the full bridge configuration after the arc is ignited so that a buck inverter function using the second network sustains the arc between the electrodes of the gas discharge lamp, and to provide a transient operation function to the buck inverter function to produce a spike voltage that is used to re-ignite the arc between the electrodes of the gas discharge lamp when the arc extinguishes.

摘要翻译： 一种用于操作气体放电灯的装置。 该装置包括电子镇流器和控制器。 电子镇流器包括半桥配置，全桥配置，第一网络和第二网络。 电子镇流器由控制器控制，该控制器使得半桥配置在使用第一网络的点火器功能中点燃气体放电灯的电极之间的电弧，以将电子镇流器从半桥配置切换到全桥配置 在电弧被点燃之后，使得使用第二网络的降压逆变器功能维持气体放电灯的电极之间的电弧，并且为降压逆变器功能提供瞬态操作功能以产生用于重新开始的尖峰电压， 当电弧熄灭时点燃气体放电灯的电极之间的电弧。

公开(公告)号：US06593703B2

公开(公告)日：2003-07-15

申请号：US09880822

申请日：2001-06-15

申请人： Yiyoung Sun

发明人： Yiyoung Sun

IPC分类号： H05B3702

CPC分类号： H05B41/388 ,  H05B41/2883 ,  H05B41/2888 ,  Y02B20/202 ,  Y02B20/204

摘要： A circuit arrangement and control thereof for igniting a high intensity discharge lamp, for reducing current stresses imposed on semiconductor devices during a polarity transition of a lamp voltage or lamp current, and for maintaining a parasitic current within an envelope of a square wave lamp current. A high frequency ignition voltage is only applied to the lamp during a starting operation. After the lamp breaks down in the starting operation, an imbalanced high frequency current flows through the lamp to assist a glow-to-arc transition. The high discharge current of the buck filter capacitor that is generally applied to the semiconductor devices during the polarity transition of the lamp voltage or lamp current, due to lamp extinguishing, is reduced. The lamp current is maintained as a low frequency square wave. Any spikes that may occur at the polarity transition of the lamp voltage or lamp current are superimposed on the lamp current within the envelope of the low frequency square wave lamp current.

公开(公告)号：US5138235A

公开(公告)日：1992-08-11

申请号：US664161

申请日：1991-03-04

申请人： Yiyoung Sun ,  Long T. Nguyen

发明人： Yiyoung Sun ,  Long T. Nguyen

IPC分类号： H05B41/24 ,  H05B41/298

CPC分类号： H05B41/2985 ,  Y02B20/19 ,  Y10S315/07

摘要： A circuit for starting and operating a discharge lamp, such as a compact fluorescent lamp, at high frequency from an 60 Hz AC supply. The circuit includes a power supply for generating a DC voltage coupled to a pair of AC input terminals. A DC/AC converter includes an oscillator having a pair of semiconductor switches coupled in parallel with the DC power supply. an oscillator starting circuit is coupled to one of the semiconductor switches and includes a series circuit comprising a resistor, capacitor and threshold element. The input of the oscillator starting circuit is coupled to one of the AC input terminals so as to prevent a momentary flicker in the lamp after the AC supply is removed and the lamp has extinguished. In accordance with another aspect of the invention, the oscillator includes fusible circuit elements which render the oscillator inoperable upon failure of the lamp due to depletion of emissive material on at least one of the lamp electrodes.