Power supply for multiple discharge lamps and the current balance device thereof

A power supply for multiple discharge lamps, comprising:

• a transformer;
• and
• a current balance device coupled between the transformer and a plurality of discharge lamps, wherein the current balance device comprises:
• a first inductor having a magnetic core with a plurality of legs and a plurality of windings and each leg having one winding wound thereon;
• and
• a second inductor having a magnetic core with a plurality of legs and a plurality of windings and each leg having one winding wound thereon;
• wherein at least one winding of the first inductor and at least one winding of the second inductor are connected in series with each other and each serially-connected winding is coupled to a discharge lamp, and the other windings of the first inductor and the other windings of the second inductor are respectively coupled to a discharge lamp.

A power supply for multiple discharge lamps including:

• a transformer;
• and
• a current balance device coupled between the transformer and a plurality of discharge lamps, wherein the current balance device comprises:
• a plurality of inductors, each of which has a magnetic core with a plurality of legs and a plurality of windings and each leg has one winding wound thereon;
• wherein a portion of windings allocated to different inductors are connected in series with each other and each serially-connected winding is coupled to a discharge lamp, and the other windings of the plurality of inductors are respectively coupled to a discharge lamp.