| 摘要 |
A ballast for feeding a high-pressure discharge lamp. The ballast:supplies the lamp with an AC voltage at an ignition frequency (fi) during an ignition period (ti),supplies the lamp with an AC voltage at a glow frequency (fg) during a glow period (tg) following the ignition period (ti),repeats the start-up sequence of ignition period and glow period (ti, tg),supplies the lamp with an AC voltage at an operating frequency (fb) during an operating period (tb) following the last start-up sequence, andinterrupts the power supply to the lamp in a start-up sequence, not being the last start-up sequence, during an interruption period (td) following the glow period (tg). |
