公开(公告)号：WO2009061564A1

公开(公告)日：2009-05-14

申请号：PCT/US2008/078106

申请日：2008-09-29

Applicant: GENERAL ELECTRIC COMPANY ,  CHEN, Timothy ,  MIAO, Hailiang ,  KUMAR, Nitin

Inventor： CHEN, Timothy ,  MIAO, Hailiang ,  KUMAR, Nitin

IPC: H05B41/285 ,  H05B41/282 ,  H02M7/538

CPC classification number: H05B41/2856 ,  H05B41/2827

Abstract: A system and method is provided that eliminates DC bias on at least one of a first electrolytic capacitor and a second electrolytic capacitor of a bipolar junction transistor (BJT) based inverter ballast having a shutdown control circuit in association with only one of at least two BJT switches. A duty cycle dependent capacitor is connected in a series with a bus of the ballast, and a resonant circuit, including primary winding of the output transformer and a resonant capacitor. A balancing/charging resistor is connected at one end between the first electrolytic capacitor and the second electrolytic capacitor, and at another end to the duty cycle dependent capacitor and the resonant circuit.

Abstract translation: 提供了一种系统和方法，其消除了具有关闭控制电路的双极结型晶体管（BJT）型逆变器镇流器的第一电解电容器和第二电解电容器中的至少一个上的DC偏压，仅与至少两个BJT 开关。 与占空比相关的电容器与镇流器的总线串联连接，并且包括谐振电路，包括输出变压器的初级绕组和谐振电容器。 平衡/充电电阻器一端连接在第一电解电容器和第二电解电容器之间，另一端连接到占空比相关电容器和谐振电路。

公开(公告)号：WO2008131795A1

公开(公告)日：2008-11-06

申请号：PCT/EP2007/054046

申请日：2007-04-25

Applicant: OSRAM GESELLSCHAFT MIT BESCHRÄNKTER HAFTUNG ,  LECHELER, Reinhard ,  MAYER, Siegfried ,  SCHEMMEL, Bernhard

Inventor： LECHELER, Reinhard ,  MAYER, Siegfried ,  SCHEMMEL, Bernhard

IPC: H05B41/285 ,  H02H9/00

CPC classification number: H05B41/2856

Abstract: Die Erfindung betrifft ein Beleuchtungsgerät mit einer in einer Anschlussklemme (AK) integrierten Einschaltstrombegrenzungsschaltung (D1-D4, R, M).

Abstract translation: 本发明涉及一种具有一个在一个连接端子（AK）集成浪涌电流限制电路（D1-D4，R，M）的照明装置。

公开(公告)号：WO2008011238A2

公开(公告)日：2008-01-24

申请号：PCT/US2007/071330

申请日：2007-06-15

Applicant: LUTRON ELECTRONICS CO., INC. ,  CHITTA, Venkatesh ,  TAIPALE, Mark S. ,  QUAYLE, Jonathan ,  HINDS, Thomas R.

Inventor： CHITTA, Venkatesh ,  TAIPALE, Mark S. ,  QUAYLE, Jonathan ,  HINDS, Thomas R.

CPC classification number: H05B41/2856 ,  H05B41/2986

Abstract: The output current of a ballast is dynamically limited when an over-temperature condition is detected in the ballast according to one of (i) a step function or (ii) a combination of step and continuous functions, so as to reduce the temperature of the ballast while continuing to operate it.

Abstract translation: 当在镇流器中检测到过温度条件时，镇流器的输出电流根据（i）阶跃函数或（ii）阶跃函数和连续函数的组合中的一个来检测，以便降低温度 镇流器，同时继续操作它。

公开(公告)号：WO2007147725A1

公开(公告)日：2007-12-27

申请号：PCT/EP2007/055485

申请日：2007-06-04

Applicant: PATENT-TREUHAND-GESELLSCHAFT FÜR ELEKTRISCHE GLÜHLAMPEN MBH ,  GAO, Wei ,  HECKMANN, Markus ,  LI, Ji ,  XUE, Yanshun

Inventor： GAO, Wei ,  HECKMANN, Markus ,  LI, Ji ,  XUE, Yanshun

IPC: H05B41/282 ,  H05B41/285 ,  H02M3/335

CPC classification number: H05B41/2856 ,  H02M1/38 ,  H05B41/2828 ,  Y02B20/186

Abstract: This invention relates to a method for detecting the real cutting off signal of BJT (bipolar junction transistor) in an electronic ballast and the corresponding electronic ballast. Said electronic ballast comprises a half-bridge circuit composed of two BJTs, the voltage output signal of said half- bridge circuit is on the one hand provided to a lamp and on the other hand is grounded via a capacitor and a backward diode. In order to accurately and quickly detect the real cutting off signal of said BJT, the HB control unit measures the sharp slope of voltage at the connection point (N) between the capacitor and the diode. By measuring the time between the flank of the control pulse for cutting off BJT and the corresponding sharp slope of voltage appearing accordingly at the connection point, the storage times (Ts1, Ts2) of the two BJTs are obtained. Said storage times are compared with each other, wherein the shorter storage time is used to adjust the amplitude of IC output for base current regulation, and the longer storage time is used to adjust the deadtime of IC outputs to make sure that there is always enough and appropriate deadtime. Thereby an electronic ballast operating more safely is provided.

Abstract translation: 本发明涉及一种用于检测电子镇流器中的BJT（双极结型晶体管）和相应的电子镇流器的实际截止信号的方法。 所述电子镇流器包括由两个BJT组成的半桥电路，所述半桥电路的电压输出信号一方面提供给灯，另一方面通过电容器和反向二极管接地。 为了准确，快速地检测到所述BJT的实际切断信号，HB控制单元测量电容器和二极管之间的连接点（N）处的电压的急剧斜率。 通过测量用于切断BJT的控制脉冲的侧面与相应地在连接点出现的相应的急剧斜率之间的时间，获得两个BJT的存储时间（Ts1，Ts2）。 所述存储时间相互比较，其中使用较短的存储时间来调节用于基极电流调节的IC输出的幅度，并且使用较长的存储时间来调整IC输出的死区时间，以确保总是足够 和适当的死时间。 从而提供更安全地操作的电子镇流器。

公开(公告)号：WO2006128435A2

公开(公告)日：2006-12-07

申请号：PCT/DE2006/000932

申请日：2006-05-31

Applicant: PATENT-TREUHAND-GESELLSCHAFT FÜR ELEKTRISCHE GLÜHLAMPEN MBH ,  FISCHER, Klaus ,  KREITTMAYR, Josef

Inventor： FISCHER, Klaus ,  KREITTMAYR, Josef

IPC: H05B41/285

CPC classification number: H05B41/2856

Abstract: Eine Schaltungsanordnung zum Betrieb einer Niederdruckentladungslampe (EL), bei der die Entladungslampe Leistung aufnimmt, ist so ausgeführt, dass leistungsbestimmende Bauteile (C2a, L2a) der Schaltungsanordnung derart temperaturabhängig ausgeführt sind, dass bei steigender Temperatur die Leistungsaufnahme der Lampe begrenzt wird. Insbesondere können Kondensatoren (C2a) und Drosseln (L2a) in einem Ansteuerkreis (AS) der Schaltungsanordnung temperaturabhängig ausgeführt sein.

Abstract translation: 用于操作的低气压放电灯（EL），其中，所述放电灯接收电力的电路装置，被设计成使得确定功率的部件（C2A，L2a而）以这样的方式依赖于温度，当温度升高时，该灯的功率消耗是有限的是由电路装置的。 特别地，在该电路装置的一个驱动电路（AS）的电容器（C2A）和电感器（L2a而）可以被设计成是温度依赖性的。

公开(公告)号：WO2004086463A2

公开(公告)日：2004-10-07

申请号：PCT/US2004/008904

申请日：2004-03-24

Applicant: INTERNATIONAL RECTIFIER CORPORATION ,  WILHELM, Dana

Inventor： WILHELM, Dana

IPC: H01L

CPC classification number: H02M7/538 ,  H02M2001/0048 ,  H03K17/063 ,  H03K17/0822 ,  H03K2217/0036 ,  H05B41/2856 ,  Y02B20/186 ,  Y02B70/1491

Abstract: A high voltage offset detection circuit registers the voltage at the midpoint of a switching half-bridge to 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. The MOSFET may be selectively enabled to detect the voltage. The buffer operates to prevent voltages being applied to the MOSFET lower than a low side return voltage to prevent shorts in the IC between the low side supply voltage and low side return. The offset detection circuit may be completely implemented on a monolithic integrated circuit with a switching half-bridge driver, or may be a separate circuit coupled to the half-bridge and external to the half-bridge driver.

Abstract translation: 高电压失调检测电路在开关半桥的中点登记电压，以确定中点电压何时达到给定值，以避免半桥开关中的硬开关。 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，以获得指示切换半桥的开关何时被接通以避免硬切换的信号。 可以选择性地使能MOSFET来检测电压。 缓冲器用于防止施加到MOSFET的电压低于低侧返回电压，以防止IC在低侧电源电压和低侧返回之间的短路。 偏移检测电路可以在具有开关半桥驱动器的单片集成电路上完全实现，或者可以是耦合到半桥并且半桥驱动器外部的单独电路。

公开(公告)号：WO00002422A3

公开(公告)日：2000-02-24

申请号：PCT/IB1999/001126

申请日：1999-06-17

IPC: H05B41/24 ,  H05B41/28 ,  H05B41/285 ,  H05B41/36 ,  H05B41/392

CPC classification number: H05B41/2856 ,  H05B41/28

Abstract: In a circuit arrangement for operating a lamp comprising a power feedback and an antiboost switch disabling the power feedback for part of the time, the control of the antiboost switch is realized by means of a very simple and, hence, inexpensive control circuit.

Abstract translation: 在用于操作包括功率反馈和反升压开关的灯的电路装置中，该功率反馈和反升压开关在一部分时间内超越功率反馈，借助控制电路实现反升压开关的控制。 非常简单，因此价格便宜。

公开(公告)号：WO99007192A1

公开(公告)日：1999-02-11

申请号：PCT/IB1998/000909

申请日：1998-06-11

IPC: H05B41/24 ,  H05B41/285 ,  H05B41/392 ,  H05B41/36

CPC classification number: H05B41/2856 ,  H05B41/3925

Abstract: A circuit arrangement according to the invention for the high-frequency operation of a discharge lamp (Li) comprises first rectifying means (D1-D4) for generating a DC voltage across first capacitive means (C1) from a low-frequency supply voltage. The circuit arrangement further comprises a DC/AC converter (IV) for generating a high-frequency AC voltage with a frequency f from the DC voltage. A load branch (B) provided with coupling means (T3, T4) for coupling the discharge lamp (Li) to the load branch connects a junction point (N1) of the DC/AC converter to a junction point (N2) between the first rectifying means and the first capacitive means. The circuit arrangement further comprises second rectifying means for converting a high-frequency voltage generated by the DC/AC converter into a DC voltage. The second rectifying means are coupled to the first capacitive means and to a junction point (N3) in the load branch. The circuit arrangement is in addition provided with means (CR) for controlling the power consumed by the discharge lamp (Li) through variation of the frequency f. The coupling means are connected between the junction point (N2) and the junction point (N3) in the load branch.

Abstract translation: 根据本发明的用于放电灯（Li）的高频操作的电路装置包括用于从低频电源电压产生跨越第一电容装置（C1）的DC电压的第一整流装置（D1-D4）。 电路装置还包括用于产生具有来自DC电压的频率f的高频AC电压的DC / AC转换器（IV）。 设有用于将放电灯（Li）耦合到负载支路的耦合装置（T3，T4）的负载支路（B）将DC / AC转换器的连接点（N1）连接到第一 整流装置和第一电容装置。 电路装置还包括用于将由DC / AC转换器产生的高频电压转换成直流电压的第二整流装置。 第二整流装置耦合到第一电容装置和耦合到负载支路中的连接点（N3）。 电路装置还具有用于通过频率f的变化来控制由放电灯（Li）消耗的功率的装置（CR）。 耦合装置连接在负载分支中的连接点（N2）和接合点（N3）之间。

公开(公告)号：WO98054934A1

公开(公告)日：1998-12-03

申请号：PCT/JP1998/002231

申请日：1998-05-21

IPC: H01L41/107 ,  H01L41/04 ,  H02M11/00 ,  H05B41/285 ,  H05B41/29

CPC classification number: H01L41/044 ,  H05B41/2855 ,  H05B41/2856

Abstract: In a piezoelectric transformer control circuit, when a load (2) is disconnected from a piezoelectric transformer (1) and changes to an open state, an output detection voltage (Vdet) becomes higher than a reference voltage (Vref2), and the output from a voltage comparator (10a) goes "Low". When the output of the piezoelectric transformer (1) is short-circuited to GND, the output detection voltage (Vdet) abruptly drops to almost "0" and becomes lower than a reference voltage (Vref3). The output from a voltage comparator (10b) goes "Low". A voltage-controlled oscillation circuit (6) detects the signal "Low" to stop the generation of the oscillation signal to a driving circuit (7) for driving the piezoelectric transformer (1).

Abstract translation: 在压电变压器控制电路中，当负载（2）与压电变压器（1）断开并变为打开状态时，输出检测电压（Vdet）变得高于参考电压（Vref2），并且输出 电压比较器（10a）变为“低”。 当压电变压器（1）的输出与GND短路时，输出检测电压（Vdet）突然下降到几乎“0”，并变得低于参考电压（Vref3）。 电压比较器（10b）的输出变为“低”。 电压控制振荡电路（6）检测信号“低”以停止产生振荡信号到用于驱动压电变压器（1）的驱动电路（7）。

公开(公告)号：WO98046050A1

公开(公告)日：1998-10-15

申请号：PCT/IB1998/000416

申请日：1998-03-23

IPC: H05B41/24 ,  H05B41/282 ,  H05B41/285 ,  H05B41/392 ,  H05B41/29

CPC classification number: H05B41/3925 ,  H05B41/2856 ,  H05B41/3924 ,  Y02B20/19 ,  Y10S315/04

Abstract: A triac dimmable compact fluorescent lamp having a low power factor. A power feedback circuit coupled between the input and output stages of the lamp ballast creates sufficient current demand to sustain triac conduction at low dim levels. The power fed back from the output stage to the input stage, which includes a voltage doubler, reflects the voltage across the lamp.

Abstract translation: 具有低功率因数的三端双向可控硅可调光紧凑型荧光灯。 耦合在灯镇流器的输入级和输出级之间的功率反馈电路产生足够的电流需求以在低昏暗水平下维持三端双向可控硅开关元件的导通。 从输出级反馈到输入级的功率（包括倍压器）反映了灯两端的电压。