公开(公告)号：EP0772903A4

公开(公告)日：1998-12-02

申请号：EP95920621

申请日：1995-05-23

申请人： MOTOROLA LIGHTING INC

发明人： STEPHENS DENNIS L

IPC分类号： H02M7/538 ,  H02M7/5383 ,  H05B41/282 ,  H02M7/48

CPC分类号： H02M7/538 ,  H02M7/53832 ,  H05B41/2825 ,  Y02B70/1441

摘要： A multi-resonant circuit has a series-resonant circuit (118) coupled to the input of an inverter (120). The output of the inverter is coupled to a parallel resonant circuit (108, 152). The output of the parallel resonant circuit energizes a load (142, 140), which could be gas discharge lamps. The operating frequency of the inverter (120) is between the resonant frequency of the series-resonant circuit (118) and the resonant frequency fo the parallel resonant circuit (108, 152).

公开(公告)号：EP0691799A3

公开(公告)日：1997-12-03

申请号：EP95109442.4

申请日：1995-06-19

申请人： MOTOROLA LIGHTING INC.

发明人： Konopka, John G. ,  Priegnitz, Robert A.

IPC分类号： H05B41/29

CPC分类号： H05B41/2828

摘要： An electronic ballast having a boot strap capacitor (22) that becomes initially charged at a first rate and a high voltage storage capacitor (23) that becomes charged at a second, faster rate, wherein the boot strap capacitor (22), becoming initially fully charged initiates operation of a PWM driver (18) that in turn causes a power factor corrector and inverter (16) to energize corresponding gas discharge lamps (11). Upon activation of the PWM driver (18) and the corresponding activation of the power factor corrector and inverter (16), a voltage clamp (19) responds to these events by establishing a conductive path (20) between the high voltage storage capacitor (23) and the boot strap capacitor (22), such that continued operation of the PWM driver (18) is ensured. So configured, a relatively small valued capacitor can be utilized for the boot strap capacitor (22), thereby ensuring rapid activation of the lamps (11) without risking subsequent sporadic energization or other operational difficulties.

公开(公告)号：EP0574554B1

公开(公告)日：1997-06-11

申请号：EP92915617.2

申请日：1992-03-06

申请人： MOTOROLA LIGHTING INC.

发明人： MOISIN, Mihail, S.

IPC分类号： H05B41/29

CPC分类号： H05B41/282 ,  Y02B20/183

摘要： A circuit (500) for driving series-connected gas discharge lamps from a transformer secondary winding (528) connected at first (529A) and second (529B) points respectively to first (508) and second (514) output terminals across the lamps. A capacitor (532) couples the first point to an intermediate output terminal (512). The pre-strike voltage produced across the secondary winding is applied across a single lamp (506) to cause it to strike. After striking, current to the intermediate output terminal (512) is limited by the capacitor (532), and the lamps are driven in series. In this way, the voltage which needs to be produced across the secondary winding to ensure striking of all lamps is reduced. Alternatively, the output terminals across the lamps may be connected to points on the secondary winding further apart than the first and second points (Fig. 6) or intermediate the first and second points (Figs. 1-4).

公开(公告)号：EP0541769B1

公开(公告)日：1997-02-26

申请号：EP92912106.9

申请日：1992-05-21

申请人： MOTOROLA LIGHTING INC.

发明人： MOISIN, Mihail, S. ,  KONOPKA, John, G.

IPC分类号： H05B41/29 ,  H02M3/156

CPC分类号： H05B41/2853 ,  H05B41/2986 ,  H05B41/3925 ,  Y02B20/185 ,  Y02B20/186 ,  Y10S315/07

摘要： A circuit for driving gas discharge lamps (102, 104, 106) from a nominal-level voltage supply includes: a voltage boost IC (144); an oscillator (196, 198, 178, 180) producing a high-frequency output voltage applied to the lamps via a transformer (212); and a voltage clamp (215A, 215B) coupling the transformer to the oscillator input (174, 176). The IC (144) regulates the power drawn by the circuit to a constant level if the supply voltage is greater than 95 % of its nominal value. If the supply voltage falls to less than 95 % of its nominal value, regulation is lost and the circuit draws less power in proportion to the fall in the supply voltage. If the supply voltage falls to less than 90 % of its nominal value the clamp operates to reduce the power drawn by the circuit at a rate greater than that of the fall in the supply voltage. The circuit thus enables the power drawn by the circuit to be reduced by reducing the supply voltage to less than 95 % of its nominal value.

公开(公告)号：EP0746965A1

公开(公告)日：1996-12-11

申请号：EP93908656.0

申请日：1993-03-29

申请人： MOTOROLA LIGHTING INC.

发明人： MOISIN, Mihail, S.

IPC分类号： H05B41

CPC分类号： H05B41/295 ,  Y10S315/05

摘要： For driving gas discharge lamps (102, 104) having heatable filaments (102A, 102B, 104A, 104B), a circuit (100) has an inverter (132, 134) and a series-resonant LC oscillator (150, 158, 170) forming a self-oscillating inverter. The oscillator output provides filament-heating current through the filaments in series, and drives arc current serially through the lamps. A feedback transfomer (174) with a winding (172) connected serially in the filament-heating current path controls the operation of the inverter. A voltage clamp (180, 182) limits the voltage applied to the lamps. The circuit does not require an output-coupling transformer to couple the output of the self-oscillating inverter to lamps, thus avoiding the added cost that the use of such a transformer would bring, while providing efficient, substantially fixed frequency operation of a wide variety of lamp loads, together with the ability to address a number of lamp fault modes. Alternatively, the lamps may be driven in parallel.

公开(公告)号：EP0683966A4

公开(公告)日：1996-05-22

申请号：EP95901160

申请日：1994-11-07

申请人： MOTOROLA LIGHTING INC

发明人： SHACKLE PETER W

IPC分类号： H05B41/24 ,  H05B41/28 ,  H05B37/02

CPC分类号： H05B41/28 ,  H02M2001/4275 ,  Y02B70/126 ,  Y10S315/05

摘要： A power factor corrected electronic ballast circuit uses two transformer components (130, 230). An inductively coupled charge pump technique is used for power factor correction (130) while the gates of the transistor switches (20, 30) are driven directly from a resonant inductor (40).

公开(公告)号：EP0604643A4

公开(公告)日：1994-12-28

申请号：EP93917180

申请日：1993-07-15

申请人： MOTOROLA LIGHTING INC

发明人： KONOPKA JOHN G

IPC分类号： H05B41/28 ,  H05B41/282 ,  H05B41/392 ,  H05B41/42 ,  H05B37/02

CPC分类号： H05B41/3927 ,  H05B41/28 ,  H05B41/42 ,  Y10S315/04 ,  Y10S315/05 ,  Y10S315/07

摘要： A power supply circuit (100) for use in driving fluorescent lamps (102, 104, 106) has a current mode control voltage boost IC (144) which produces a boosted voltage and has a power control input (pin 3) and a frequency control input (pin 4). The lamps are driven by a self oscillating inverter (178, 180, 196, 198) which is powered from the voltage boost IC and which operates at a frequency independent therefrom. In order to dim the lamps a D.C. bias voltage is applied to the power control input. At the same time a commensurate D.C. bias voltage is applied to the frequency control input so as to provide power factor correction in dependence on the power produced by the voltage boost IC. The circuit thus provides a substantially constant, optimum power factor at both full and dimmed light levels.

公开(公告)号：EP0624304A1

公开(公告)日：1994-11-17

申请号：EP93923364.0

申请日：1993-10-12

申请人： MOTOROLA LIGHTING INC.

发明人： TURNER, Thomas, W.

IPC分类号： H05B41

CPC分类号： H05B41/2855

摘要： Un circuit pour alimenter des lampes à décharge gazeuse comporte un filtre passe-bande couplé entre la sortie de l'onduleur (112) et la commande de ce dernier. Ce filtre passe-bande assure une protection contre le fonctionnement en diode des lampes à décharge gazeuse. Ce passe-bande se compose d'un condensateur (180) et de l'inductance de perméance d'un transformateur (134).

公开(公告)号：EP0604643A1

公开(公告)日：1994-07-06

申请号：EP93917180.0

申请日：1993-07-15

申请人： MOTOROLA LIGHTING INC.

发明人： KONOPKA, John, G.

IPC分类号： H05B41

CPC分类号： H05B41/3927 ,  H05B41/28 ,  H05B41/42 ,  Y10S315/04 ,  Y10S315/05 ,  Y10S315/07

摘要： L'invention se rapporte à un circuit d'alimentation (100) pour l'excitation de lampes fluorescentes (102, 104, 106), qui comprend un circuit intégré survolteur de commande en mode courant (144), lequel produit une surtension et comporte une entrée de commande de puissance (broche 3) et une entrée de commande de fréquence (broche 4). Les lampes sont excitées par un onduleur auto-oscillant (178, 180, 196, 198) qui est alimenté par le circuit intégré survolteur et qui fonctionne à une fréquence indépendante de lui. Afin d'abaisser la lumière des lampes, une première tension de polarisation cc est appliquée à l'entrée de commande de puissance. Au même moment, une deuxième tension de polarisation cc proportionnelle à la première est appliquée à l'entrée de commande de fréquence afin de produire une correction de facteur de puissance qui dépende de la puissance produite par le circuit intégré survolteur. Le circuit décrit fournit ainsi un facteur de puissance optimum essentiellement constant aussi bien à un niveau pleine lumière qu'à un niveau de lumière abaissée.

摘要翻译： 本发明涉及一种用于激励荧光灯（102,104,106）的电源电路（100），该电源电路包括产生过电压的电流模式升压控制集成电路（144），并包括 一个电源控制输入（引脚3）和一个频率控制输入（引脚4）。 这些灯由自激振荡逆变器（178,180,196,198）激励，该自激振荡逆变器由升压集成电路供电，并以与其无关的频率工作。 为了降低灯的光，第一偏压c.c.施加到功率控制输入端。 同时，与频率成比例的第二偏置电压c.c.与频率控制输入成比例，以产生取决于升压集成电路产生的功率的功率因数校正。 所描述的电路因此在全光级和降低的光级都提供基本恒定的最佳功率因数。

公开(公告)号：EP0551474A4

公开(公告)日：1994-02-16

申请号：EP92916457

申请日：1992-07-27

申请人： MOTOROLA LIGHTING, INC.

发明人： KONOPKA, JOHN, G.

IPC分类号： H05B41/24 ,  H05B41/28 ,  H05B41/282 ,  H05B37/02

CPC分类号： H05B41/2827 ,  H05B41/28 ,  Y10T307/944 ,  Y10T307/951