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公开(公告)号：EP1454408A1
公开(公告)日：2004-09-08
申请号：EP02787005.4
申请日：2002-12-11
发明人： RIBARICH, Thomas, J.
IPC分类号： H02M7/5387
CPC分类号： H02M7/53871 , H02M3/3376 , H02M2007/4815 , H02M2007/53878 , Y02B70/1433 , Y02B70/1441
摘要： A phase delay control for a power converter operates with a phase locked loop and current sense feedback to provide improved control stability and dynamic output range. The phase lock loop includes a voltage controlled oscillator that is controlled based on an error signal derived from a phase of the power converter output. The error signal applied to the voltage controlled oscillator produces a shift in switching frequency for the converter to drive the error to zero. The power converter includes an LCC resonant circuit to manipulate resonant electrical energy to improve switching speed and power density.
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公开(公告)号：EP1377888A1
公开(公告)日：2004-01-07
申请号：EP02733927.4
申请日：2002-03-28
IPC分类号： G05F1/00
CPC分类号： H05B37/0254 , H05B41/2981 , H05B41/36 , H05B41/3921 , Y10S315/04
摘要： An electronic ballast circuit (15) for powering a gas discharge lamp (26) is networked with other ballast circuits to provide large scale lighting control on a local or remote basis. The ballast has an interface (10) connectable to a standard PC (20) for receiving commands and obtaining query information. The ballasts can be controlled individually or in groups. The ballast control also can download lighting profiles to a microcontroller in the ballast, and can support lighting control protocols including the DALI standard.
摘要翻译： 用于为气体放电灯（26）供电的电子镇流器电路（15）与其他镇流器电路联网以在本地或远程的基础上提供大规模照明控制。 镇流器具有可连接到标准PC（20）的接口（10），用于接收命令并获得查询信息。 镇流器可以单独或分组控制。 镇流器控制器还可以将照明配置文件下载到镇流器中的微控制器，并且可以支持包括DALI标准的照明控制协议。
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公开(公告)号：EP1604546A2
公开(公告)日：2005-12-14
申请号：EP04757486.8
申请日：2004-03-16
IPC分类号： H05B1/00
CPC分类号： H05B41/2886 , H05B41/2888 , Y02B20/202 , Y02B20/206
摘要： An integrated circuit (14) controls a power converter that includes single stage buck-boost converter (10) and a switching full bridge (12) that may be used to drive an HID lamp. The single stage buck-boost converter (10) reduces the complexity and parts count of the power converter, or electronic ballast, while permitting PFC and DC bus voltage regulation under control of the integrated circuit. The integrated circuit (14) also provides all the drive signals to operate the switching full bridge circuit (12) to maintain constant power on the HID lamp. A wait timer provides an interval of time between restart attempts for the HID lamp to permit the lamp to cool so that high hot restart voltages are avoided. The integrated circuit (14) simplifies the design of power converters and electronic ballasts in particular, while contributing to reducing part count, complexity and cost in conjunction with the single stage buck-boost converter (10).
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公开(公告)号：EP1377888B1
公开(公告)日：2008-11-19
申请号：EP02733927.4
申请日：2002-03-28
IPC分类号： G05F1/00 , H05B41/392 , H05B37/02 , H05B37/03
CPC分类号： H05B37/0254 , H05B41/2981 , H05B41/36 , H05B41/3921 , Y10S315/04
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公开(公告)号：EP1370917B1
公开(公告)日：2008-03-05
申请号：EP02723577.9
申请日：2002-03-22
发明人： RIBARICH, Thomas, J.
IPC分类号： G05F1/00 , H05B41/288 , H05B41/292
CPC分类号： H05B41/3928 , H05B41/2883 , H05B41/2887 , H05B41/2925 , Y02B20/202
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公开(公告)号：EP1736037A2
公开(公告)日：2006-12-27
申请号：EP05735716.2
申请日：2005-04-08
发明人： RIBARICH, Thomas, J.
IPC分类号： H05B37/02
CPC分类号： H05B41/28 , H05B41/2981 , H05B41/2985 , H05B41/2986
摘要： The IRS21681 D (Figure 2) is a fully integrated, fully protected 600V ballast control IC designed to drive all types of fluorescent lamps. The IRS21681D (Figure 2) is based on the popular IR2166 control IC with additional improvements to increase ballast performance. PFC circuitry (Figure 19) operates in critical conduction mode and provides high PF, low THD and DC bus regulation. The IRS21681D (Figure 2) features include programmable preheat and run frequencies, programmable preheat time, programmable ignition ramp, programmable PFC over-current protection, and programmable end-of-life protection. Comprehensive protection features such as protection from failure of a lamp to strike, filament failures, end-of-life protection, DC bus under-voltage reset as well as an automatic restart function, have been included in the design. The IRS2168D (Figure 2) has, in addition, closed-loop half-bridge ignition current regulation and a novel fault counter. The IRS21681D, unlike the IRS2168D, ramps up during ignition and shuts down at the first over- current fault. The IRS21681D and IRS2168D are both available in either 16- pin PDfP or 16-pin narrow body SOIC packages.
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公开(公告)号：EP1637014A2
公开(公告)日：2006-03-22
申请号：EP04756120.4
申请日：2004-06-24
CPC分类号： H05B41/2985 , H05B41/2981
摘要： A multi-function feedback sense input in an electronic ballast control indicates a number of lamp faults on the basis of lamp parameters exceeding specified thresholds. An end of life detection is achieved by conditioning a lamp feedback with a DC offset to provide a simple threshold comparison to determine if the lamp exceeds specified operational boundaries. An open filament, absent lamp or broken cathode is detected on the same feedback sense by detecting an open circuit in the lamp filament and driving the sense feedback to a shutdown state in the event of a filament open circuit. The ballast control includes a current sense feedback (70) for detecting overcurrent conditions as well as lamp faults so that the control detects an end of life condition, lamp absence, broken lamp, open filament, broken cathode, overcurrent, hardswitching or failure to ignite fault with a minimum number of feedback sensors. The ballast control provides a number of protections with a simplified circuit to reduce cost and improve functionality of the electronic ballast control.
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公开(公告)号：EP1370917A1
公开(公告)日：2003-12-17
申请号：EP02723577.9
申请日：2002-03-22
发明人： RIBARICH, Thomas, J.
IPC分类号： G05F1/00
CPC分类号： H05B41/3928 , H05B41/2883 , H05B41/2887 , H05B41/2925 , Y02B20/202
摘要： A dimmable electronic ballast for an HID lamp (50) includes a rectifier stage for rectifying an AC input (10) and providing a rectified DC output (14), a power factor (20) correction stage for modifying a power factor of the AC input and for providing an increased voltage DC output from the rectified DC output, an electronic ballast control circuit (80) for providing a driving signal comprising a pulse train for controlling a switching operation of an output switch stage (940) driving the HID lamp; the output switch stage (40) having at least one electronic switching element coupled to the increased voltage DC output for providing a pulsed power signal to the HID lamp to power the lamp (50), the electronic ballast control circuit (80) having a feedback input comprising a signal related to the power dissipated by the HID lamp for maintaining the power at a desired level, the desired level being set by a dimming control input (82) to the electronic ballast control circuit (80). The circuit provides high frequency power, typically above 50 kHz, to the HID lamp (50).
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