| 摘要 |
PROBLEM TO BE SOLVED: To provide a ballast for driving a lamp, configured to be accelerated to reset by reducing a preset time according to power toggle during a preset time. SOLUTION: A controller 111 is set to a preset immobile time, upon detecting a fault in a stable operating state after start-up, to interrupt operation of an inverter 110 to interrupt supply of driving power to a lamp 121. After the lapse of the preset time, the controller 111 is reset, and starts a start-up cycle to restart the ballast 100. Power is toggled to be ON-OFF-ON during the preset immobile time, whereby a current reducing circuit 140 reduces the ratio of I2/I1 to force automatic reset on the controller. COPYRIGHT: (C)2011,JPO&INPIT |
