Invention Grant
US06683487B2 Current driver circuit for supplying write current to a write head while changing a flow direction of the write current
失效
用于在改变写入电流的流动方向的同时向写入头提供写入电流的当前驱动器电路
- Patent Title: Current driver circuit for supplying write current to a write head while changing a flow direction of the write current
- Patent Title (中): 用于在改变写入电流的流动方向的同时向写入头提供写入电流的当前驱动器电路
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Application No.: US10212702Application Date: 2002-08-07
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Publication No.: US06683487B2Publication Date: 2004-01-27
- Inventor: Toru Takeuchi , Takehiko Umeyama
- Applicant: Toru Takeuchi , Takehiko Umeyama
- Priority: JP2002-054361 20020228
- Main IPC: H03K1756
- IPC: H03K1756
Abstract:
An H-type bridge circuit includes four transistors, two resistors, and a write head. A write current supplied from a current supply circuit including a first of the transistors and resistors flows through the write head and is received in a current receiving circuit including a second of the resistors and a fourth of the transistors, and another write current supplied from a current supply circuit including the second of the transistors and the second resistor flows through the write head and is received in a current receiving circuit including the first of the resistors and the third of the transistors. Impedance of the write head matches an output impedance of the current supply circuit and matches an input impedance of the current receiving circuit.
Public/Granted literature
Information query
