| 摘要 |
PURPOSE:To provide a starting circuit able to generate starting pulses with a wide pulse width and high pulse energy for a rectangular wave lighting-type discharge lamp lighting apparatus. CONSTITUTION:A starting circuit is composed of an inductor 11 connected with a metal halide lamp 10 in series and a nonlinear capacitor 12 connected with the lamp 10 in parallel wherein the starting circuit is in a rectangular wave lighting-type discharge lamp lighting apparatus composed of a commercial electric power source 1, a current rectifying device 2, a filter 3, a voltage lowering type chopper circuit 4 for current control, and a full bridge-type inverter 5. |
