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1. 发明授权

US08638042B1 System and method for regulating an open circuit voltage of an HID lamp ballast 有权
标题翻译：用于调节HID灯镇流器的开路电压的系统和方法
公开(公告)号：US08638042B1
公开(公告)日：2014-01-28
申请号：US12979929
申请日：2010-12-28
申请人： Yiyoung Tony Sun , Kenichi Fukuda
发明人： Yiyoung Tony Sun , Kenichi Fukuda
IPC分类号： G05F1/00
CPC分类号： H05B41/2883 , Y02B20/204
摘要： A lamp ballast is provided for igniting and operating an HID lamp. A buck inverter circuit includes a pair of high-frequency and a pair of low-frequency switches. A capacitor and an inductor are series-connected between a first node between the low frequency switches and a second node between the high frequency switches. A lamp igniting circuit is coupled between the first node and a first lamp output terminal, and a second lamp output terminal is coupled to a third node between the capacitor and the inductor. A control circuit turns on and off the switches to regulate low frequency square wave voltage generated across the lamp output terminals to be less than an input DC voltage from the positive rail, wherein the buck inverter operates in either of a critical discontinuous mode or a discontinuous mode during an open circuit operation, and in a critical discontinuous mode during other operations.
摘要翻译：提供灯泡镇流器用于点亮和操作HID灯。降压逆变器电路包括一对高频和一对低频开关。电容器和电感器串联连接在低频开关之间的第一节点和高频开关之间的第二节点之间。灯点燃电路耦合在第一节点和第一灯输出端之间，第二灯输出端耦合到电容器和电感器之间的第三节点。控制电路接通和断开开关，以调节灯输出端子两端产生的低频方波电压小于正轨的输入直流电压，其中降压逆变器工作在临界不连续模式或不连续模式在开路操作期间，在其他操作期间处于关键不连续模式。

2. 发明授权

US07469940B2 Discharge lamp lighting device, lighting system and method 有权
标题翻译：放电灯照明装置，照明系统及方法
公开(公告)号：US07469940B2
公开(公告)日：2008-12-30
申请号：US11951839
申请日：2007-12-06
申请人： Yiyoung Tony Sun , Takeshi Goriki , Kenichi Fukuda
发明人： Yiyoung Tony Sun , Takeshi Goriki , Kenichi Fukuda
IPC分类号： G05F1/00 , H02H3/00
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。

3. 发明授权

US07365951B2 Discharge lamp lighting device, lighting system and method 有权
公开(公告)号：US07365951B2
公开(公告)日：2008-04-29
申请号：US11368667
申请日：2006-03-07
申请人： Yiyoung Tony Sun , Takeshi Goriki , Kenichi Fukuda
发明人： Yiyoung Tony Sun , Takeshi Goriki , Kenichi Fukuda
IPC分类号： H02H3/00
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.

4. 发明授权

US06864645B2 Method and circuit for driving a gas discharge lamp 有权
标题翻译：用于驱动气体放电灯的方法和电路
公开(公告)号：US06864645B2
公开(公告)日：2005-03-08
申请号：US10378828
申请日：2003-03-05
申请人： Yiyoung Tony Sun , Takeshi Goriki , Hiroyasu Eriguchi
发明人： Yiyoung Tony Sun , Takeshi Goriki , Hiroyasu Eriguchi
IPC分类号： H05B41/288 , H05B41/292 , G05F1/00 , H05B41/36
CPC分类号： H05B41/2881 , H05B41/2883 , H05B41/2925 , Y10S315/07
摘要： Circuit and method for driving a gas discharge lamp having a bridge converter. The bridge converter includes a plurality of switches. A controller turns on and off the plurality of switches. The circuit further includes a zero current sensor circuit. The controller senses at least one voltage differential to control a length of time that at least one of the at least four switches is on. The controller controls when at least one of the plurality of switches is turned on in accordance with an output of the zero cross sensor.
摘要翻译：用于驱动具有桥式变流器的气体放电灯的电路和方法。桥式变流器包括多个开关。控制器打开和关闭多个开关。电路还包括零电流传感器电路。控制器感测至少一个电压差以控制至少四个开关中的至少一个开启的时间长度。所述控制器根据所述零交叉传感器的输出来控制所述多个开关中的至少一个开关是否被接通。

5. 发明授权

US08154211B2 End-of-life protection circuit and method for high intensity discharge lamp ballast 有权
标题翻译：寿命终止保护电路和高强度放电灯镇流器的方法
公开(公告)号：US08154211B2
公开(公告)日：2012-04-10
申请号：US12578093
申请日：2009-10-13
申请人： Nanu Brates , Bhavinkumar Shah , Yiyoung Tony Sun
发明人： Nanu Brates , Bhavinkumar Shah , Yiyoung Tony Sun
IPC分类号： H05B37/00 , H05B41/00 , H05B37/02 , H05B39/02 , H05B39/04 , H05B41/36 , H05B39/00 , H01J11/04 , H01J13/48 , H01J17/36 , H01J15/04
CPC分类号： H05B41/2928 , G01R31/44 , Y02B20/208
摘要： An apparatus and method thereof for igniting and operating a high intensity discharge (HID) lamp during an in service life, and powering down the lamp when an end-of-life (EOL) lamp condition is detected. The apparatus and method defines a series of thresholds of lamp voltage asymmetry, or rectification thresholds, and monitors the lamp rectification from ignition through normal operation. The detection scheme is masked off for a predetermined period of time when the lamp is initially started. Thereafter, the rectification threshold of the lamp voltage asymmetry is gradually reduced over time, until a defined minimum rectification threshold level is reached and maintained. The method continuously monitors the lamp voltage and records whenever the lamp voltage asymmetry is higher than the rectification threshold level at any lamp voltage cycle. An EOL lamp condition is determined to exist when a certain number of high asymmetrical cycles occurs in selected total number of lamp voltage cycles during a rolling measurement window.
摘要翻译：一种用于在使用寿命期间点亮和操作高强度放电（HID）灯的装置和方法，以及当检测到寿命终止（EOL）灯条件时对灯进行供电。该装置和方法定义了灯电压不对称或整流阈值的一系列阈值，并且通过正常操作来监视从点火到灯的整流。检测方案在灯最初启动的预定时间段被遮蔽。此后，灯电压不对称的整流阈值随着时间逐渐减小，直到达到并保持所定义的最小整流阈值电平。当灯电压不对称性高于任何灯电压周期的整流阈值电平时，该方法将持续监控灯电压并进行记录。当在滚动测量窗口期间选定的灯电压周期数中出现一定数量的高不对称周期时，确定EOL灯条件存在。

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