发明名称 |
Write head with common mode termination resistor |
摘要 |
A write circuit and a head for a hard disk drive. The head includes a substrate that has an electrical ground and a write element that has a center tap. The head also has a resistor that is connected to the center tap and the electrical ground. The resistor provides a return path for AC and DC components of any common mode signal in a write circuit. The resistor can also generate heat that thermally expands the head and varies a head flying height. The write element is connected to an write driver circuit that provides in phase currents to a write element during the write operation and out of phase currents during a read operation. The out of phase currents allow for thermal expansion and flying height control even during a read operation. |
申请公布号 |
US8085509(B2) |
申请公布日期 |
2011.12.27 |
申请号 |
US20080080640 |
申请日期 |
2008.04.03 |
申请人 |
JANG EUNKYU;SAMSUNG ELECTRONICS CO., LTD. |
发明人 |
JANG EUNKYU |
分类号 |
G11B5/147;G11B5/17 |
主分类号 |
G11B5/147 |
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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