公开(公告)号：US20070096662A1

公开(公告)日：2007-05-03

申请号：US11555922

申请日：2006-11-02

申请人： Thomas Ribarich ,  Dana Wilhelm ,  Ying Xiao

发明人： Thomas Ribarich ,  Dana Wilhelm ,  Ying Xiao

IPC分类号： H05B41/36

CPC分类号： H05B41/3925 ,  H05B41/2828 ,  H05B41/298

摘要： A ballast control circuit having a bridge driver for driving a transistor bridge of a ballast circuit coupled to a resonant ballast output stage including a lamp, the ballast control circuit comprising a circuit for setting a minimum oscillation frequency and a voltage controlled oscillation circuit having a first input, wherein as a voltage at the first input increases, modes of the circuit change from a preheat mode where the frequency of oscillation moves from a first frequency to a lower preheat frequency and continues at a substantially constant preheat frequency for a set duration of preheat time, to an ignition mode where the frequency moves lower towards a resonance frequency of the ballast output stage until the lamp ignites, and to a run mode where the frequency stops decreasing and stays at the minimum set frequency.

摘要翻译： 一种镇流器控制电路，其具有用于驱动耦合到包括灯的谐振镇流器输出级的镇流器电路的晶体管桥的桥接驱动器，所述镇流器控制电路包括用于设置最小振荡频率的电路和具有第一 输入，其中当所述第一输入处的电压增加时，所述电路的模式从所述振荡频率从第一频率移动到较低预热频率的预热模式改变，并以基本上恒定的预热频率继续预定的持续时间 时间到点火模式，其中频率向镇流器输出级的谐振频率向下移动直到灯点亮，并且到频率停止下降并保持在最小设定频率的运行模式。

公开(公告)号：US20070085517A1

公开(公告)日：2007-04-19

申请号：US11548928

申请日：2006-10-12

申请人： Thomas Ribarich ,  Masashi Sekine ,  Dana Wilhelm

发明人： Thomas Ribarich ,  Masashi Sekine ,  Dana Wilhelm

IPC分类号： G05F1/10

CPC分类号： G05F1/70 ,  H02M1/4225 ,  Y02B70/126

摘要： A power factor correction integrated circuit housed in an integrated circuit package for controlling a boost converter circuit having an input inductor coupled in series with a boost rectifier between a rectified AC line input voltage and a DC bus voltage, on a DC bus, the rectified AC line input voltage provided by a rectifier coupled to an AC line input voltage to be power factor corrected. The integrated circuit including a first input circuit sensing the DC bus voltage; a second input circuit sensing current through the inductor and determining when the current through the inductor discharges to substantially zero current, a power switch coupled between a common connection of the inductor and boost rectifier and a return line of the DC bus for allowing the inductor to be charged by current from the rectified AC line input voltage when the power switch is turned on; and a control circuit having inputs coupled to outputs from the first and second input circuits to control the On-Time of the power switch to regulate the DC bus voltage to a desired voltage level and to achieve power factor correction of the AC line input voltage.

摘要翻译： 一种功率因数校正集成电路，其容纳在集成电路封装中，用于控制升压转换器电路，该升压转换器电路具有与DC总线上的整流的AC线路输入电压和DC总线电压之间的升压整流器串联的输入电感器，整流的AC 由耦合到AC线输入电压的整流器提供的线路输入电压被功率因数校正。 所述集成电路包括感测所述直流母线电压的第一输入电路; 第二输入电路感测通过电感器的电流，并确定何时通过电感器的电流放电至基本为零的电流;耦合在电感器和升压整流器的公共连接之间的电源开关和DC总线的返回线， 当电源开关打开时，由整流的交流线路输入电压由电流充电; 以及控制电路，其具有耦合到来自第一和第二输入电路的输出的输入，以控制电源开关的导通时间，以将DC总线电压调节到期望的电压电平并且实现AC线路输入电压的功率因数校正。

公开(公告)号：US20060113922A1

公开(公告)日：2006-06-01

申请号：US11263751

申请日：2005-10-28

申请人： Thomas Ribarich ,  Dana Wilhelm

发明人： Thomas Ribarich ,  Dana Wilhelm

IPC分类号： H05B37/02

CPC分类号： H05B41/2885 ,  H05B41/2882 ,  H05B41/2886 ,  Y02B20/202

摘要： An integrated circuit controls a power converter that includes single stage buck-boost converter and a switching full bridge that may be used to drive an HID lamp. The single stage buck-boost converter 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 to maintain constant power on the HID lamp. The integrated circuit simplifies the design of power converters and electronic ballasts in particular, while reducing part count, complexity and cost in conjunction with the single stage buck-boost converter and the full bridge switching circuit.

公开(公告)号：US20060018140A1

公开(公告)日：2006-01-26

申请号：US11198629

申请日：2005-08-05

申请人： Vincent Thiery ,  Bruno Nadd ,  Thomas Ribarich ,  John Ribarich

发明人： Vincent Thiery ,  Bruno Nadd ,  Thomas Ribarich ,  John Ribarich

IPC分类号： H02M7/5387

CPC分类号： H02M1/425 ,  H05B41/28 ,  H05B41/282 ,  Y02B20/183 ,  Y02B70/126

摘要： A power converter provides constant load power while achieving a high power factor in a single stage configuration with reduced component count and ratings. The power converter takes a rectified line input to a switching half-bridge that supplies current to a load. A series combination of shunt switch and capacitor is connected across the load to store energy from the input and supply energy to the load. The switches are operated with conduction angles that achieve constant power supplied to the load while drawing a sinusoidal current in phase with the input voltage to achieve high power factor. The circuit provides a simplified configuration over prior power converters that may be used with a resonant load as part of an electronic ballast or an AC-to-DC converter. The power converter configuration and operation also achieves a low total harmonic distortion on the input line power.

公开(公告)号：US20050195626A1

公开(公告)日：2005-09-08

申请号：US11063524

申请日：2005-02-22

申请人： Zan Huang ,  Thomas Ribarich

发明人： Zan Huang ,  Thomas Ribarich

IPC分类号： H02M5/42

CPC分类号： H02M1/425 ,  H05B41/282 ,  Y02B70/126

摘要： A resonant switching converter comprising a first pair of series connected switches comprising a high side switch and a low side switch coupled across a DC input voltage, there being a first switched node between the switches; a second pair of series connected switches comprising a high side switch and a low side switch coupled across a DC bus, there being a second switched node between the switches; a DC bus capacitor coupled across the DC bus; the first and second switched nodes adapted to have a load coupled therebetween; the high side switch of the first pair of switches supplying current to the load from the DC input voltage, the low side switch of the first pair of switches being switched opposite the high side switch of the first pair of switches and providing a re-circulation path to allow bi-directional current flow through the load; the high side switch of the second pair of switches supplying current to the load from the DC bus capacitor, the low side switch of the second pair of switches being switched opposite said high side switch of the second pair of switches and providing a re-circulation path to allow bidirectional current flow through the load; a controller for controlling the switching of each of the switches of the first and second pairs of switches, the controller comprising a phase shift circuit providing a phase shift between the control signals driving the switches of the first and second pairs of switches to shape the waveshape of the output voltage of the converter provided to the load; the controller further comprising a first circuit for providing a first compensation signal for the control signals driving the first pair of switches to compensate for variation of the DC input voltage; and a second circuit for providing a second compensation signal for the control signals driving the second pair of switches to compensate for variation of the DC bus voltage.

摘要翻译： 一种谐振开关转换器，包括第一对串联连接的开关，其包括跨越DC输入电压耦合的高侧开关和低侧开关，所述开关之间存在第一开关节点; 第二对串联连接开关，包括跨越DC总线耦合的高侧开关和低侧开关，在开关之间存在第二开关节点; 一个直流总线电容耦合在直流母线上; 所述第一和第二开关节点适于在其间耦合负载; 第一对开关的高侧开关从直流输入电压向负载提供电流，第一对开关的低侧开关与第一对开关的高侧开关相反地切换并提供再循环 允许双向电流流过负载的路径; 第二对开关的高侧开关从DC总线电容器向负载供电，第二对开关的低侧开关与第二对开关的高侧开关相反地切换并提供再循环 允许双向电流流过负载的路径; 用于控制第一和第二对开关的每个开关的切换的控制器，所述控制器包括相移电路，其提供驱动第一和第二对开关的开关的控制信号之间的相移，以形成波形 提供给负载的转换器的输出电压; 所述控制器还包括第一电路，用于为驱动所述第一对开关的控制信号提供第一补偿信号，以补偿所述DC输入电压的变化; 以及第二电路，用于为驱动第二对开关的控制信号提供第二补偿信号，以补偿DC母线电压的变化。

公开(公告)号：US08243476B2

公开(公告)日：2012-08-14

申请号：US13108259

申请日：2011-05-16

申请人： Thomas Ribarich

发明人： Thomas Ribarich

IPC分类号： H02M3/335

CPC分类号： H02M7/217 ,  H02M7/21 ,  H03F3/38 ,  H03K17/687 ,  Y02B70/1483

摘要： A half-bridge circuit in accordance with an embodiment of the present application includes an input voltage terminal operable to receive an input voltage, a first bi-directional switch, a second bi-directional switch connected in series with the first bi-directional switch, wherein the first and second bi-directional switches are connected to the input voltage terminal such that the input voltage is provided across the first and second bi-directional switches and a controller operable to turn the first and second bi-directional switches ON and OFF such that a desired voltage is provided at an midpoint node positioned between the first bi-directional switch and the second bi-directional switch. The first bi-directional switch and the second bi-directional switch are high electron mobility transistors structured to allow for conduction in two directions when ON and to prevent conduction in any direction when OFF.

摘要翻译： 根据本申请的实施例的半桥电路包括可操作以接收输入电压的输入电压端子，第一双向开关，与第一双向开关串联连接的第二双向开关， 其中所述第一和第二双向开关连接到所述输入电压端子，使得所述输入电压跨所述第一和第二双向开关提供，以及控制器，其可操作以将所述第一和第二双向开关接通和断开， 在位于第一双向开关和第二双向开关之间的中点节点处提供期望的电压。 第一双向开关和第二双向开关是高电子迁移率晶体管，其被构造为当ON时允许在两个方向上的导通，并且当OFF时防止在任何方向上的导通。

公开(公告)号：US20080054824A1

公开(公告)日：2008-03-06

申请号：US11926475

申请日：2007-10-29

申请人： Thomas Ribarich

发明人： Thomas Ribarich

IPC分类号： H05B37/02

CPC分类号： H05B41/28 ,  H05B41/2981 ,  H05B41/2985 ,  H05B41/2986

摘要： The IRS21681D is a fully integrated, fully protected 600V ballast control IC designed to drive all types of fluorescent lamps. The IRS21681D is based on the popular IR2166 control IC with additional improvements to increase ballast performance. PFC circuitry operates in critical conduction mode and provides high PF, low THD and DC bus regulation. The IRS21681D 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 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 PDIP or 16-pin narrow body SOIC packages.

摘要翻译： IRS21681D是一款完全集成的完全保护的600V镇流器控制IC，用于驱动所有类型的荧光灯。 IRS21681D基于受欢迎的IR2166控制IC，具有额外的改进，以增加镇流器性能。 PFC电路在临界导通模式下工作，并提供高PF，低THD和DC总线调节。 IRS21681D功能包括可编程预热和运行频率，可编程预热时间，可编程点火斜坡，可编程PFC过流保护和可编程寿命终止保护。 设计中已经包括全面的保护功能，例如防止灯泡发生故障，灯丝故障，寿命终止保护，直流母线欠压复位以及自动重启功能。 IRS2168D还具有闭环半桥点火电流调节和新型故障计数器。 IRS21681D与IRS2168D不同，在点火期间上升，在第一次过流故障时关闭。 IRS21681D和IRS2168D均采用16引脚PDIP或16引脚窄体SOIC封装。

公开(公告)号：US20080042595A1

公开(公告)日：2008-02-21

申请号：US11769516

申请日：2007-06-27

申请人： Thomas Ribarich

发明人： Thomas Ribarich

IPC分类号： H05B37/02

CPC分类号： H05B41/2828 ,  H05B41/2985 ,  Y02B20/186

摘要： A ballast control circuit for use with a fluorescent lamp in accordance with an embodiment of the present application includes a voltage controlled oscillator operable to provide an operating signal for the ballast control circuit, wherein a frequency of the operating signal depends on an input voltage provided to the voltage controller oscillator, and a driver circuit operable to provide a first driver signal via a first driver terminal and a second driver signal via a second driver terminal to a first switch and a second switch of a half bridge, respectively, wherein the first switch and the second switch are connected in series across a power source, such that a desired output voltage for powering the fluorescent lamp is provided at a node between the first switch and the second switch. The first control signal and the second control signal control the first switch and the second switch to provide a desired duty cycle and dead time based on the frequency of the operating signal. The input voltage of the voltage controlled oscillator is provided at a power supply terminal of the ballast control circuit and is maintained within a desired range such that the frequency of the operating signal is maintained in a second desired range.

摘要翻译： 根据本申请的实施例的与荧光灯一起使用的镇流器控制电路包括可操作以提供用于镇流器控制电路的操作信号的压控振荡器，其中操作信号的频率取决于提供给 电压控制器振荡器和驱动电路，其可操作以分别经由第一驱动器端子和第二驱动器端子将第一驱动器信号经由第二驱动器端子提供给半桥的第一开关和第二开关，其中第一开关 并且第二开关串联连接在电源上，使得在第一开关和第二开关之间的节点处提供用于为荧光灯供电的期望的输出电压。 第一控制信号和第二控制信号控制第一开关和第二开关，以基于操作信号的频率提供期望的占空比和死区时间。 压控振荡器的输入电压设置在镇流器控制电路的电源端子处，并保持在期望的范围内，使得操作信号的频率保持在第二期望范围内。

公开(公告)号：US20060186834A1

公开(公告)日：2006-08-24

申请号：US11056748

申请日：2005-02-11

申请人： Thomas Ribarich ,  Zan Huang

发明人： Thomas Ribarich ,  Zan Huang

IPC分类号： H05B39/00

CPC分类号： H05B41/2855 ,  H05B41/2828 ,  H05B41/2853

摘要： A ballast control circuit for multiple lamps comprising a ballast control circuit for driving two series connected switches of a lamp ballast connected across a supply potential and having a switched node between the switches; the switched node adapted to be connected to an output circuit comprising a plurality of parallel connected lamps; the control circuit comprising an oscillator, the output circuit comprising the plurality of parallel connected lamps including inductive and capacitive components and having a resonance frequency that is dependent on the number of lamps in the output circuit; a lamp output voltage being developed across the output circuit; further comprising a feedback circuit for controlling the oscillator whereby the oscillator sweeps from a first frequency above resonance to a lower frequency closer to resonance such that the output voltage increases to a potential above a lamp ignition threshold, thereby igniting at least one lamp; the feedback circuit controlling the oscillator whereby the oscillator frequency reduces each time a lamp ignites, causing the output voltage across the output voltage circuit to increase above the threshold, thereby igniting another of the lamps.

摘要翻译： 一种用于多个灯的镇流器控制电路，包括镇流器控制电路，用于驱动连接在电源电位上并且在开关之间具有开关节点的灯镇流器的两个串联连接的开关; 所述开关节点适于连接到包括多个并联连接的灯的输出电路; 所述控制电路包括振荡器，所述输出电路包括所述多个并联连接的灯，其包括电感和电容部件，并且具有取决于所述输出电路中的灯的数量的谐振频率; 在输出电路两端形成灯输出电压; 还包括用于控制所述振荡器的反馈电路，由此所述振荡器从谐振之上的第一频率扫描到更接近谐振的较低频率，使得所述输出电压增加到高于灯点火阈值的电位，从而点燃至少一个灯; 所述反馈电路控制所述振荡器，从而每当灯点燃时，所述振荡器频率降低，使得所述输出电压电路两端的输出电压增加到所述阈值以上，从而点燃另一个所述灯。

公开(公告)号：US20050225265A1

公开(公告)日：2005-10-13

申请号：US11102603

申请日：2005-04-08

申请人： Thomas Ribarich

发明人： Thomas Ribarich

IPC分类号： H05B37/02 ,  H05B41/28 ,  H05B41/298

CPC分类号： H05B41/28 ,  H05B41/2981 ,  H05B41/2985 ,  H05B41/2986

摘要： The IRS21681D is a fully integrated, fully protected 600V ballast control IC designed to drive all types of fluorescent lamps. The IRS21681D is based on the popular IR2166 control IC with additional improvements to increase ballast performance. PFC circuitry operates in critical conduction mode and provides high PF, low THD and DC bus regulation. The IRS21681D 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 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 PDIP or 16-pin narrow body SOIC packages.

摘要翻译： IRS21681D是一款完全集成的完全保护的600V镇流器控制IC，用于驱动所有类型的荧光灯。 IRS21681D基于受欢迎的IR2166控制IC，具有额外的改进，以增加镇流器性能。 PFC电路在临界导通模式下工作，并提供高PF，低THD和DC总线调节。 IRS21681D功能包括可编程预热和运行频率，可编程预热时间，可编程点火斜坡，可编程PFC过流保护和可编程寿命终止保护。 设计中已经包括全面的保护功能，例如防止灯泡发生故障，灯丝故障，寿命终止保护，直流母线欠压复位以及自动重启功能。 IRS2168D还具有闭环半桥点火电流调节和新型故障计数器。 IRS21681D与IRS2168D不同，在点火期间上升，在第一次过流故障时关闭。 IRS21681D和IRS2168D均采用16引脚PDIP或16引脚窄体SOIC封装。