发明名称 |
Step-up type magnetic head |
摘要 |
A magnetic head integrally assembled with a step-up transformer. The magnetic head portion is formed on a lower substrate by a thin film technology and the number of turns of the signal winding is 1 or a value near 1. The transformer portion mainly comprises a transformer magnetic circuit which is formed by the lower substrate and upper substrate. A one-turn primary coil of a thin film formed over the lower substrate and a secondary coil by a bulk wire are arranged so as to couple inductively with each other through the transformer magnetic circuit. The signal winding and the primary coil winding are formed by the same thin film process. The head portion and the transformer portion thus are arranged very closely and hence coupled with very little transfer loss of signal.
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申请公布号 |
US4787003(A) |
申请公布日期 |
1988.11.22 |
申请号 |
US19860851518 |
申请日期 |
1986.04.14 |
申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. |
发明人 |
NAKAMURA, KAZUO;TAKAHASHI, KEN |
分类号 |
G11B5/127;G11B5/17;G11B5/31;(IPC1-7):G11B5/17;H01F17/06 |
主分类号 |
G11B5/127 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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