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1. 发明申请

WO2005003878A2 BALLAST CONTROL IC WITH MULTI-FUNCTION FEEDBACK SENSE 审中-公开
标题翻译：具有多功能反馈感测功能的BALLAST控制IC
公开(公告)号：WO2005003878A2
公开(公告)日：2005-01-13
申请号：PCT/US2004/020473
申请日：2004-06-24
申请人： INTERNATIONAL RECTIFIER CORPORATION , CONTENTI, Cecilia , GREEN, Peter , RIBARICH, Thomas, J.
发明人： CONTENTI, Cecilia , GREEN, Peter , RIBARICH, Thomas, J.
IPC分类号： G05F
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 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.
摘要翻译：在电子镇流器控制中的多功能反馈感测输入基于灯参数超过指定阈值来指示灯故障的数量。通过利用DC偏移量调节灯反馈来实现寿命终止检测，以提供简单的阈值比较以确定灯是否超过指定的操作边界。通过检测灯丝中的开路并且在灯丝开路的情况下将感测反馈驱动到关闭状态，在相同的反馈意义上检测到未熄灯，熄灯或阴极阴极。镇流器控制包括用于检测过电流状况以及灯故障的电流感测反馈，使得控制检测寿命状态终止，灯不存在，灯损坏，开灯丝，阴极坏死，过电流，硬切换或故障点燃故障最小反馈传感器数量。镇流器控制提供了许多具有简化电路的保护，以降低成本并改善电子镇流器控制的功能。

2. 发明申请

WO2004103026A2 DIGITAL ELECTRONIC BALLAST CONTROL APPARATUS AND METHOD 审中-公开
标题翻译：数字电子控制装置及方法
公开(公告)号：WO2004103026A2
公开(公告)日：2004-11-25
申请号：PCT/US2004/014237
申请日：2004-05-05
申请人： INTERNATIONAL RECTIFIER CORPORATION , RIBARICH, Thomas, J. , GREEN, Peter
发明人： RIBARICH, Thomas, J. , GREEN, Peter
IPC分类号： H05B
CPC分类号： H05B41/295 , H05B41/2828 , H05B41/2981 , Y02B20/186
摘要： A ballast control may include a digitally controlled oscillator to provide a precise and consistent oscillation frequency for switching a half-bridge circuit in the electronic ballast. The ballast control may include a digital memory device for storing ballast control operational parameters. A controller can access the digital memory to retrieve parameter values and apply them to various ballast control components. A counter in the ballast control counts a number of events, such as an over current event, and provides a signal when a predetermined count is reached to contribute to identifying fault conditions. The controller may contain one or more timers to time durations related to events in the electronic ballast, such as the initiation of an ignition current. The digital nature of the ballast control permits a wide degree of flexibility in providing operational set points and reacting to conditions in the electronic ballast and simplifies the ballast control.
摘要翻译：镇流器控制可以包括数字控制的振荡器，以提供用于切换电子镇流器中的半桥电路的精确和一致的振荡频率。镇流器控制可以包括用于存储镇流器控制操作参数的数字存储器件。控制器可以访问数字存储器以检索参数值并将其应用到各种镇流器控制组件。镇流器控制中的计数器对诸如过电流事件的事件进行计数，并且当达到预定计数以有助于识别故障状况时提供信号。控制器可以包含一个或多个定时器以与电子镇流器中的事件相关的时间持续时间，例如启动点火电流。镇流器控制的数字性质允许在提供操作设定点和对电子镇流器中的条件作出反应方面具有广泛的灵活性并简化镇流器控制。

3. 发明申请

WO2006096638A3 AUTOMOTIVE HIGH INTENSITY DISCHARGE LAMP BALLAST CIRCUIT 审中-公开
公开(公告)号：WO2006096638A3
公开(公告)日：2006-09-14
申请号：PCT/US2006/007914
申请日：2006-03-06
申请人： INTERNATIONAL RECTIFIER CORPORATION , RIBARICH, Thomas J. , GREEN, Peter
发明人： RIBARICH, Thomas J. , GREEN, Peter
IPC分类号： H05B37/02 , H05B39/04 , H05B41/36
摘要： An electronic ballast for driving a high intensity discharge (HID) lamp is provided. The electronic ballast includes a voltage boost stage for receiving a DC input voltage and outputting a boosted DC output voltage with a controlled current. It further includes a switching stage for converting the boosted DC output voltage to a switched AC voltage capable of driving the HID lamp. An integrated circuit (IC) is coupled to the voltage boost stage and the switching stage for controlling both. The IC includes a lamp power control circuit comprising a sensing circuit for sensing an output current from the switching stage and the boosted DC output voltage, a current control loop which controls the lamp power if the lamp current is at a maximum level and a power control loop which controls the lamp power if the lamp current is below a maximum level. The IC also includes a controller unit interface and provides an ignition mode and a regular operation mode.

4. 发明申请

WO2009099408A1 AUTOMOTIVE HID HEADLAMP BALLAST CONTROL IC 审中-公开
标题翻译：汽车头灯控制IC
公开(公告)号：WO2009099408A1
公开(公告)日：2009-08-13
申请号：PCT/US2008/001566
申请日：2008-10-06
申请人： INTERNATIONAL RECTIFIER CORPORATION , WILHELM, Dana , GREEN, Peter
发明人： WILHELM, Dana , GREEN, Peter
IPC分类号： G05F1/00
CPC分类号： H05B41/2885 , H05B41/2886 , Y02B20/202
摘要： A ballast control integrated circuit for a ballast driving a high intensity discharge (HID) lamp. The control integrated circuit has a first circuit for controlling a DC to DC converter receiving a first DC voltage and providing an increased DC voltage. The first circuit includes a driver for providing a pulsed signal to drive a first switch coupled to a flyback transformer of the DC to DC converter. A second circuit controls a DC to AC converter, the second circuit controlling a switching circuit receiving the increased DC voltage and driving the HID lamp with an AC voltage. The second circuit has a driver circuit for driving the switching circuit. The switching circuit is an H-bridge switching circuit coupled to drive the HID lamp.
摘要翻译：用于镇流器的镇流器控制集成电路驱动高强度放电（HID）灯。控制集成电路具有用于控制DC-DC转换器的第一电路，其接收第一DC电压并提供增加的DC电压。第一电路包括用于提供脉冲信号以驱动耦合到DC-DC转换器的回扫变压器的第一开关的驱动器。第二电路控制DC到AC转换器，第二电路控制接收升高的直流电压并用AC电压驱动HID灯的开关电路。第二电路具有用于驱动开关电路的驱动电路。开关电路是耦合以驱动HID灯的H桥开关电路。

5. 发明申请

WO2008011041A3 IMPROVED BALLAST CONTROL CIRCUIT FOR USE WITH CCFL AND EEFL LAMPS 审中-公开
公开(公告)号：WO2008011041A3
公开(公告)日：2008-01-24
申请号：PCT/US2007/016227
申请日：2007-07-18
申请人： INTERNATIONAL RECTIFIER CORPORATION , GREEN, Peter
发明人： GREEN, Peter
IPC分类号： H05B37/02 , H05B41/16
摘要： A ballast control circuit for driving at least one gas discharge lamp (14) in accordance with an embodiment of the present applicatio includes a high side driver operable to provide a high side driving signal to a high side switch (MHS) of a half bridge (12) controlle a ballast control circuit, wherein the high side driving signal indicates a preferred duty cycle for the high side switch (MHS), a low s driver operable to provide a low side driving signal to a low side switch (MLS) of the half bridge, wherein the low side driving sign indicates a preferred duty cycle for the low side switch and a dead time control circuit operable to provide a dead time signal that indicates a dead time during which both the high side and low side siwtches (MHS, MLS) are turned off, wherein the dead time is s based on a value of an external dead time resistor (TDT).

6. 发明申请

WO2005079513A2 HALF BRIDGE ADAPTIVE DEAD TIME CIRCUIT AND METHOD 审中-公开
标题翻译：半桥自适应死区时间电路和方法
公开(公告)号：WO2005079513A2
公开(公告)日：2005-09-01
申请号：PCT/US2005/005349
申请日：2005-02-22
申请人： INTERNATIONAL RECTIFIER CORPORATION , RUSU, Iulia , WILHELM, Dana , GREEN, Peter
发明人： RUSU, Iulia , WILHELM, Dana , GREEN, Peter
IPC分类号： G05F1/40 , H02M1/38
CPC分类号： H02M1/38 , H03K17/166 , H03K17/284 , H03K17/6871 , H03K2217/0063 , H03K2217/0072 , H03K2217/0081
摘要： A high voltage offset detection circuit registers the voltage at the midpoint of a switching half-bridge and may determine when the midpoint voltage reaches a given value to avoid hard-switching in the half-bridge switches. The midpoint voltage of the switching half-bridge is applied through a buffer to a MOSFET that is current limited to produce a voltage that reflects the voltage of the midpoint of the switching half-bridge. The voltage produced by the MOSFET may be supplied to a comparator with a threshold input to obtain a signal that indicates when the switches of the switching half-bridge may be turned on to avoid hard-switching. An adaptive dead-time circuit and method may comprise the above sensing circuit, a first circuit for generating a first signal indicative of a high to low transition of the midpoint voltage; and an output circuit for generating an adaptive dead-time output signal based thereon. A second circuit may generate a second signal indicative of a low to high transition of the voltage; wherein the output circuit generates the adaptive dead-time output signal based on both the first and second signals. The second circuit preferably generates the second signal by reproducing the first signal. The first circuit may generate the first signal by charging a capacitor in response to pulses, and the second circuit may generate the second signal by charging a second capacitor corresponding to said first capacitor, and the adaptive dead-time output signal may be responsive to the charges on the first and second capacitors.
摘要翻译：高电压失调检测电路在开关半桥的中点登记电压，并且可以确定中点电压何时达到给定值以避免半桥开关中的硬切换。开关半桥的中点电压通过缓冲器施加到电流限制的MOSFET，以产生反映开关半桥中点电压的电压。由MOSFET产生的电压可以提供给具有阈值输入的比较器，以获得指示开关半桥的开关何时导通以避免硬切换的信号。自适应死区时间电路和方法可以包括上述感测电路，用于产生指示中点电压的高到低转换的第一信号的第一电路; 以及用于基于此产生自适应死区时间输出信号的输出电路。第二电路可以产生指示电压的低到高转换的第二信号; 其中所述输出电路基于所述第一和第二信号两者产生所述自适应死区时间输出信号。第二电路优选地通过再现第一信号来产生第二信号。第一电路可以通过响应于脉冲对电容器充电来产生第一信号，并且第二电路可以通过对与所述第一电容器相对应的第二电容器进行充电来产生第二信号，并且自适应死区时间输出信号可以响应于在第一和第二电容器上充电。

7. 发明申请

WO2007044948A2 DIMMABLE BALLAST CONTROL INTEGRATED CIRCUIT 审中-公开
标题翻译：二极管控制集成电路
公开(公告)号：WO2007044948A2
公开(公告)日：2007-04-19
申请号：PCT/US2006/040304
申请日：2006-10-12
申请人： INTERNATIONAL RECTIFIER CORPORATION , RIBARICH, Thomas , GREEN, Peter
发明人： RIBARICH, Thomas , GREEN, Peter
IPC分类号： H05B41/36
CPC分类号： H05B41/3925 , H05B41/2828 , H05B41/298 , Y02B20/186
摘要： An IC for controlling a power supply circuit for delivering power to a fluorescent lamp in accordance with an embodiment of the present invention includes a ballast control section operable to provide drive signals to the power supply circuit and an amplifier section integrated into the IC and operable to provide a dimming signal to the ballast control section. The ballast control section drives the power supply circuit to provide for dimming of the lamp based on the dimming signal. An IC for controlling a power supply circuit for delivering power to a fluorescent lamp in accordance with another embodiment of the present application includes a ballast control section operable to provide drive signals to the power supply circuit; and an amplifier section integrated into the IC. The ballast control section provides the drive signals to the power supply circuit, receives current sense signals indicative of current in said lamp, and responds to the current sense signals by modifying the drive signals.
摘要翻译：根据本发明的实施例的用于控制用于向荧光灯供电的电源电路的IC包括：镇流器控制部分，其可操作以向电源电路提供驱动信号;以及放大器部分，集成到IC中并可操作以向镇流器控制部分提供调光信号。镇流器控制部分驱动电源电路以根据调光信号提供灯的调光。根据本申请的另一实施例的用于控制向荧光灯供电的电源电路的IC包括可操作以向电源电路提供驱动信号的镇流器控制部分; 以及集成到IC中的放大器部分。镇流器控制部分将驱动信号提供给电源电路，接收指示所述灯中的电流的电流感测信号，并通过修改驱动信号来响应电流检测信号。

8. 发明申请

WO2006010123A3 FLUORESCENT BALLAST CONTROLLER IC 审中-公开
公开(公告)号：WO2006010123A3
公开(公告)日：2006-01-26
申请号：PCT/US2005/024548
申请日：2005-07-12
申请人： INTERNATIONAL RECTIFIER CORPORATION , GREEN, Peter , HUANG, Zan
发明人： GREEN, Peter , HUANG, Zan
IPC分类号： H05B37/02 , H05B41/16
摘要： A ballast control integrated circuit (ICl) for driving at least one gas discharge lamp comprising a first oscillator circuit for producing a first oscillating signal; a driver circuit for driving first and second output transistors (Ql, Q2) connected in a half-bridge configuration; the driver circuit being provided with pulsed signals derived from the first oscillating signal for generating pulsed drive signals for driving the first and second transistors (Ql, Q2); and a dimming control circuit responsive to a dimming input signal to drive the driver circuit such that the driver circuit provides the pulsed drive signals in bursts thereby to dim the lamp in dependence on the level of the dimming input signal. The ballast control integrated cirucit also provides overcurrent and overvoltage sensing and allows master/slave opeartion.

9. 发明申请

WO2003059017A1 BASIC HALOGEN CONVERTOR IC 审中-公开
标题翻译：基本卤化物转换器IC
公开(公告)号：WO2003059017A1
公开(公告)日：2003-07-17
申请号：PCT/US2002/041836
申请日：2002-12-30
申请人： INTERNATIONAL RECTIFIER CORPORATION , GREEN, Peter , RUSU, Iulia
发明人： GREEN, Peter , RUSU, Iulia
IPC分类号： H05B37/02
CPC分类号： H05B39/02 , H05B39/045 , H05B41/2981
摘要： A driving circuit for providing a control signal to a power semiconductor device for providing power to a filament lamp, said driving circuit comprising an oscillator for generating said control signal. The driving circuit may further comprise a soft start circuit (180) which controls said oscillator so as to avoid excessive current in said lamp at start-up; a voltage compensation circuit which controls said oscillator so as to compensate for variations in load; a shutdown circuit (254) for shutting down and automatically restarting said oscillator in response to a fault condition; an adaptive dead time circuit (78) which controls said oscillator for providing cool running of said power semiconductor device; and/or a dimming circuit which controls said oscillator for driving said lamp. The driving circuit and its control circuitry may be implemented in an integrated circuit (50).
摘要翻译：一种用于向功率半导体器件提供控制信号以向白炽灯提供电力的驱动电路，所述驱动电路包括用于产生所述控制信号的振荡器。驱动电路还可以包括软启动电路（180），其控制所述振荡器，以避免启动时所述灯中的过大电流; 电压补偿电路，其控制所述振荡器以补偿负载的变化; 关闭电路（254），用于响应于故障状况关闭和自动重启所述振荡器; 自适应死区电路（78），其控制所述振荡器以提供所述功率半导体器件的冷却运行; 和/或控制用于驱动所述灯的所述振荡器的调光电路。驱动电路及其控制电路可以在集成电路（50）中实现。

10. 发明申请

WO2004017370A3 DRIVER IC FOR USE WITH SIMPLE MICROCONTROL 审中-公开
公开(公告)号：WO2004017370A3
公开(公告)日：2004-02-26
申请号：PCT/US2003/025371
申请日：2003-08-13
申请人： INTERNATIONAL RECTIFIER CORPORATION
发明人： GREEN, Peter
IPC分类号： H05B37/02
摘要： A driver circuit (120) for driving a switching circuit driving a load, e.g., a gas discharge lamp (20), the drive circuit comprising an input trigger circuit (Fig. 2) receiving a pulsed input signal for controlling the generation of two drive signals, a first drive signal driving a high side switch (190) of a half bridge switching circuit and a second drive signal driving a low side switch (200) of the half bridge switching circuit, a circuit for providing a dead time between the first and second drive signals whereby both the first and second drive signals are substantially zero, the input trigger circuit generating a control signal for controlling the generation of the first and second drive signals based on a characteristic of the pulsed input signal and first and second drive circuits for providing the first and second drive signals.

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