公开(公告)号：EP0311424B1

公开(公告)日：1994-03-09

申请号：EP88309375.9

申请日：1988-10-07

申请人： ADVANCE TRANSFORMER CO. (a Division of Philips Electronics North America Corporation)

发明人： Dean, Thomas E. ,  Henrich, William H. ,  Pietsch, Herbert E. ,  Fischer David M. ,  Stratton, Lawrence J.

IPC分类号： H05B41/29

CPC分类号： H05B41/285 ,  H05B41/2856 ,  H05B41/2858 ,  Y02B20/183 ,  Y10S315/07

公开(公告)号：EP0311424A3

公开(公告)日：1989-10-18

申请号：EP88309375.9

申请日：1988-10-07

申请人： ADVANCE TRANSFORMER CO. (a Division of Philips Electronics North America Corporation)

发明人： Dean, Thomas E. ,  Henrich, William H. ,  Pietsch, Herbert E. ,  Fischer David M. ,  Stratton, Lawrence J.

IPC分类号： H05B41/29

CPC分类号： H05B41/285 ,  H05B41/2856 ,  H05B41/2858 ,  Y02B20/183 ,  Y10S315/07

摘要： An electronic frequency inverter circuit receives input electrical power at a lower frequency and energizes in a range of higher frequencies a load circuit (36)(37) including gaseous discharge lamps which varies with frequency. First and second switches (30)(31) are operated alternately by a logic circuit mode control (40) such that the switches operate at the high frequency range and the frequency of current in the load circuit varies as the magnitude of said source voltage (10) varies. The load circuit has an impedance such that the peak amplitude of the load current remains substantially constant despite variations in the magnitude of said source voltage to achieve a desirable crest factor for the load current. A high current limit circuit rapidly turns off the switches when excessively high current begins to flow through the switches. Low voltage is supplied in port from the high frequency current. Normal operation is ensured during start-up, for reduced line voltage and for a semiconductor chip embodiment.

公开(公告)号：EP0311424A2

公开(公告)日：1989-04-12

申请号：EP88309375.9

申请日：1988-10-07

申请人： ADVANCE TRANSFORMER CO. (a Division of Philips Electronics North America Corporation)

发明人： Dean, Thomas E. ,  Henrich, William H. ,  Pietsch, Herbert E. ,  Fischer David M. ,  Stratton, Lawrence J.

IPC分类号： H05B41/29

CPC分类号： H05B41/285 ,  H05B41/2856 ,  H05B41/2858 ,  Y02B20/183 ,  Y10S315/07

摘要： An electronic frequency inverter circuit receives input electrical power at a lower frequency and energizes in a range of higher frequencies a load circuit (36)(37) including gaseous discharge lamps which varies with frequency. First and second switches (30)(31) are operated alternately by a logic circuit mode control (40) such that the switches operate at the high frequency range and the frequency of current in the load circuit varies as the magnitude of said source voltage (10) varies. The load circuit has an impedance such that the peak amplitude of the load current remains substantially constant despite variations in the magnitude of said source voltage to achieve a desirable crest factor for the load current. A high current limit circuit rapidly turns off the switches when excessively high current begins to flow through the switches. Low voltage is supplied in port from the high frequency current. Normal operation is ensured during start-up, for reduced line voltage and for a semiconductor chip embodiment.

摘要翻译： 电子频率逆变器电路以较低的频率接收输入电力，并且在较高频率的范围内激励包括随频率变化的气体放电灯的负载电路（36）（37）。 第一和第二开关（30）（31）通过逻辑电路模式控制（40）交替操作，使得开关在高频范围下工作，并且负载电路中的电流频率随着所述源电压（ 10）不同。 负载电路具有使得负载电流的峰值振幅保持基本上恒定的阻抗，尽管所述源极电压的幅度有变化，以实现负载电流的期望波峰因数。 高电流限制电路在过高的电流开始流过开关时迅速关闭开关。 从高频电流向端口供电低电压。 在启动期间，为了降低线路电压和半导体芯片实施例，确保正常操作。

公开(公告)号：EP0178852B1

公开(公告)日：1994-04-06

申请号：EP85307269.2

申请日：1985-10-10

申请人： ADVANCE TRANSFORMER CO. (a Division of Philips Electronics North America Corporation)

发明人： Grubbs, Calvin E.

IPC分类号： H05B41/29

CPC分类号： H02H7/1227 ,  H05B41/2981 ,  H05B41/392

公开(公告)号：EP0178852A1

公开(公告)日：1986-04-23

申请号：EP85307269.2

申请日：1985-10-10

申请人： ADVANCE TRANSFORMER CO. (a Division of Philips Electronics North America Corporation)

发明人： Grubbs, Calvin E.

IPC分类号： H05B41/29

CPC分类号： H02H7/1227 ,  H05B41/2981 ,  H05B41/392

摘要： An electronic ballast circuit for fluorescent or other gaseous discharge lamps includes a resonant half-bridge inverter circuit. The source voltage to the inverter is a full-wave rectified line voltage together with a DC carry-over voltage for supplying power in the inter-cusp period of the rectified line voltage. A negative feedback circuit is responsive to lamp current to vary the inverter drive frequency and thereby regulate lamp current. The frequency response of the feedback loop is high enough and the gain-versus- frequency response of the inverter is such that lamp current and voltage are regulated to reduce the crest factor of lamp current to compensate for variation in the amplitude of the voltage across the semiconductor switches.

摘要翻译： 用于荧光灯或其他气体放电灯的电子镇流器电路包括谐振半桥逆变器电路。 逆变器的源极电压为全波整流线电压以及直流输出电压，用于在整流线电压的中间期供电。 负反馈电路响应于灯电流来改变逆变器驱动频率，从而调节灯电流。 反馈环路的频率响应足够高，并且逆变器的增益 - 频率响应使得灯电流和电压被调节以减小灯电流的波峰因数，以补偿横跨电压的电压幅度的变化 半导体开关