首页>
外国专利>
Reference circuit for write driver circuit with programmable write current, overshoot duration and overshoot amplitude control
Reference circuit for write driver circuit with programmable write current, overshoot duration and overshoot amplitude control
展开▼
机译:用于写驱动器电路的参考电路,具有可编程写电流,过冲持续时间和过冲幅度控制
展开▼
页面导航
摘要
著录项
相似文献
摘要
A write current circuit (40) adapted to drive a thin film write head (L0) of a mass media information storage device. The write current circuit includes a write current reference voltage circuit (42) adapted to selectively establish amplitude of a write current signal. The write current circuit further includes programming circuitry (M5-M10) driven such that several parameters of the write current waveform can be controlled, including the write current amplitude, overshoot amplitude and overshoot duration. The present invention achieves technical advantages by providing the ability to both produce an accurate write current, and also providing the ability to establish the write current waveform shape so that customers can optimize disk drive performance even when using different thin film write heads available from different suppliers.
展开▼