公开(公告)号：EP0655174A4

公开(公告)日：1995-10-25

申请号：EP94912154

申请日：1994-02-22

申请人： MOTOROLA LIGHTING INC

发明人： CROUSE KENT E ,  KONOPKA JOHN G

IPC分类号： H05B41/24 ,  H02M1/00 ,  H02M1/42 ,  H05B41/28 ,  H05B41/282 ,  H02M5/00 ,  H05B41/14

CPC分类号： H02M1/425 ,  H05B41/28 ,  H05B41/2825 ,  Y02B70/126 ,  Y10S315/07

摘要： A circuit with a transistor common to both the inverter (113) and the boost converter (118) powers a gas discharge lamp (144). In a half-bridge inverter, a boost inductor (108) is coupled between the rectifier (104) and the junction (112) between two switching circuits (114, 116).

摘要翻译： 具有与逆变器（113）和升压转换器（118）共用的晶体管的电路为气体放电灯（144）供电。 在半桥逆变器中，升压电感器（108）耦合在整流器（104）与两个开关电路（114,116）之间的结点（112）之间。

公开(公告)号：EP0614583A1

公开(公告)日：1994-09-14

申请号：EP93923365.0

申请日：1993-10-12

申请人： MOTOROLA LIGHTING INC.

发明人： UPADHYAY, Anand, K.

IPC分类号： H01F27 ,  G11C11 ,  H01F10 ,  H03H1 ,  H03H7

CPC分类号： H01F10/32 ,  B82Y25/00 ,  G11C11/14 ,  G11C11/22 ,  G11C11/5607 ,  G11C11/565 ,  H03H1/0007

摘要： Un circuit magnétique intégré pour filtre contre les parasites et interférences (200) comporte des inducteurs différentiels et de mode commun enroulés autour d'un noyau droit (210). Ce dernier est juxtaposé à un noyau en E (202), les surfaces terminales (222, 224, 226) des branches du noyau en E (204, 206, 208) faisant face au noyau droit. Dans le circuit magnétique, le trajet du flux magnétique des inducteurs différentiels (300, 302) et des inducteurs de mode commun (304, 306) est pratiquement fermé.

公开(公告)号：EP0502176A1

公开(公告)日：1992-09-09

申请号：EP91918372.0

申请日：1991-09-27

申请人： MOTOROLA LIGHTING INC.

发明人： STEVENS, Carlile, R.

IPC分类号： H04B3

CPC分类号： H04B3/542 ,  H04B2203/542 ,  H04B2203/5458

摘要： Des données sont transmises par une ligne d'alimentation (15) en tant qu'interruption momentanée de l'alimentation au niveau ou proche du passage par zéro du courant. L'interruption est de préférence une petite fraction de la période de la fréquence de la ligne d'alimentation. Les données sont transmises uniquement aux dispositifs du circuit en série avec l'émetteur. L'émetteur (13) combine des signaux d'horloge 60 Hz et 120 Hz avec les données provenant d'un registre à décalage pour interrompre le courant selon une configuration prédéterminée dans laquelle une interruption des passages positifs par zéro et des passages négatifs par zéro définit un "1" logique et l'absence d'interruption définit un "0" logique. Un préfixe de données identifie des bits successifs en tant que données. Le récepteur (17) produit un signal modulé en largeur d'impulsion en réponse aux données.

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.