发明授权
- 专利标题： Flat transformer and power supply unit having flat transformer
- 专利标题（中）： 扁平变压器和具有扁平变压器的电源单元
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申请号： US141628申请日： 1993-10-27
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公开(公告)号： US5502430A公开(公告)日： 1996-03-26
- 发明人: Tadashi Takahashi , Kenichi Onda , Akihiko Kanouda , Hideaki Horie , Syuya Hagiwara , Noriyuki Uchiyama , Sadamu Saito
- 申请人： Tadashi Takahashi , Kenichi Onda , Akihiko Kanouda , Hideaki Horie , Syuya Hagiwara , Noriyuki Uchiyama , Sadamu Saito
- 申请人地址： JPX Tokyo
- 专利权人： Hitachi, Ltd.
- 当前专利权人： Hitachi, Ltd.
- 当前专利权人地址： JPX Tokyo
- 优先权： JPX4-291124 19921029
- 主分类号： H01F27/28
- IPC分类号： H01F27/28
摘要：
A flat transformer has a coil body. The coil body is formed by winding plural insulated conductive wires. Each of the plural insulated conductive wires has a conductor having a circular shaped cross-section, and an outer peripheral portion of the conductor is coated by an insulating coating. A part of plural insulated conductive wires is used to form a primary winding and the remainder of the plural insulated conductive wires is used to form a secondary winding. A flat transformer may also have plural coil bodies. The plural coil bodies may be wound at plural stages. A part of the plural coil bodies is may be used to form a primary winding and the remainder of plural coil bodies may be used to form a secondary winding. The flat transformer can operate stably at a high frequency with a small loss.
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