MAGNETIC-RECORDING-MEDIA PROCESSING DEVICE AND METHOD FOR CONTROLLING MAGNETIC-RECORDING-MEDIA PROCESSING DEVICE

摘要

To provide a magnetic recording medium processing device in which the bad influence to the reading of magnetic data is reduced and illegal acquisition of magnetic data can be prevented with certainty, and a control method for the magnetic recording medium processing device. The magnetic recording medium processing device has a drive power supply unit 51 for supplying a drive voltage VCC, a reference potential unit 522, and resonance drive unit 523 including a resonance circuit in which an inductor L51 and a capacitor C51 are connected between the first node ND52 and the second node ND53, a resonance unit 511 in which the first node receives the drive voltage and the second node resonates while connected to the reference potential unit 522 to generate a magnetic field, and a drive switching element DSW51 which is connected between the second node ND53 at the resonance unit and the reference potential unit 522 and is to be switched between a conducting state and a non-conducting state according to the control signal CTL to switch the connection status of the second node at the resonance unit and the reference potential unit between the connected state and the disconnected state.