公开(公告)号：US20170148471A1

公开(公告)日：2017-05-25

申请号：US14950938

申请日：2015-11-24

Applicant: HGST Netherlands B.V.

Inventor： Satoshi Tabata ,  Atsushi Yamada ,  Michiya Kazusawa ,  Masato Shiimoto

IPC: G11B5/09

CPC classification number: G11B20/10009 ,  G11B5/02 ,  G11B5/1278 ,  G11B5/235 ,  G11B5/3153 ,  G11B5/40 ,  G11B5/465 ,  G11B2005/0024

Abstract: A magnetic recording system for preventing data loss resulting magnetic oscillator current. The magnetic recording system includes a magnetic write head with a magnetic write pole, a magnetic oscillator near the magnetic write pole, and a write coil for magnetizing the write pole. Circuitry is connected with the magnetic write coil to supply a current to the write coil and connected with the magnetic oscillator to supply a current to the magnetic oscillator. The circuitry is configured to ensure that the current to the magnetic oscillator does not inadvertently magnetize the write pole after the magnetic write pole has demagnetized.