| 摘要 |
PURPOSE: A ramp parallel driving apparatus is provided to improve driving efficiency by keeping current at the both ends of the lamp balance. CONSTITUTION: An inverter(210) changes a DC voltage into an AC voltage. A first transformer(220) boots the AC voltage from the inverter and supplies it to a lamp(100). A second transformer(230) is connected in parallel to the first transformer, and it boots the AC voltage from inverter and supplies it to the lamp. One side of a primary winding of a first transformer and the second transformer are electrically commonly connected. The other side of a primary winding of a first transformer and the second transformer are commonly electrically connected to the lamp. |
