Transformer for inverter circuit

A thin-type high power transformer used in an inverter for driving a discharge tube, the transformer comprising:

• a first U-shaped core;
• a second U-shaped core;
• a first bobbin having a first hollow portion for inserting a part of the first U-shaped core and a part of the second U-shaped core;
• a second bobbin substantially disposed parallel to the first bobbin, the second bobbin having a second hollow portion for inserting a part of the first U-shaped core and a part of the second U-shaped core;
• primary coils wound around the first bobbin;
• and
• secondary coils wound around the second bobbin.

A transformer for an inverter circuit, comprising:

• a core module having a first core portion and a second core portion;
• a first bobbin having a first coiled portion and a first hollow portion for receiving the first core portion;
• a second bobbin having a plurality of flanges, the second bobbin substantially disposed parallel to the first bobbin, the second bobbin having a second coiled portion and a second hollow portion for receiving the second core portion;
• primary coils wound around the first coiled portion;
• and
• secondary coils wound around the second coiled portion.