公开(公告)号：US4524399A

公开(公告)日：1985-06-18

申请号：US384428

申请日：1982-06-02

申请人： David B. Jepsen

发明人： David B. Jepsen

IPC分类号： G05F1/56 ,  G11B19/00 ,  G11B19/28 ,  G11B25/04 ,  G11B33/12 ,  G11B5/012 ,  G04B19/00 ,  G05B19/40 ,  G11B5/45

CPC分类号： G11B33/122 ,  G11B19/00 ,  G11B19/28 ,  G11B25/043

摘要： In a magnetic disk memory, a magnetic disk is driven by a DC motor having a permanent magnet rotor and a pair of stator windings sharing a common ground connection point. The windings are alternately energized from an electrical power source by a switching circuit which produces positive voltage pulses of predetermined duration across the windings. The negative emf induced in the windings between energizing pulses provides a source of regulated, negative DC voltage which may be used to power various components requiring such a supply.

摘要翻译： 在磁盘存储器中，磁盘由具有永磁转子和共享共同接地连接点的一对定子绕组的直流电动机驱动。 绕组由电源交替地通过开关电路供电，所述开关电路在绕组上产生预定持续时间的正电压脉冲。 在激励脉冲之间的绕组中感应的负电动势提供调节的负直流电压源，其可用于为需要这种电源的各种部件供电。