公开(公告)号：US5327059A

公开(公告)日：1994-07-05

申请号：US950457

申请日：1992-09-24

申请人： Van K. Truong ,  Edward H. Patrick ,  David E. Woodral

发明人： Van K. Truong ,  Edward H. Patrick ,  David E. Woodral

IPC分类号： G11B15/46 ,  G11B15/48 ,  G11B19/20 ,  G11B19/28 ,  H02P6/20 ,  H02P1/28 ,  H02P1/30

CPC分类号： H02P6/20 ,  G11B15/46 ,  G11B15/48 ,  G11B19/20 ,  G11B19/28

摘要： A system and apparatus for startup and speed regulation of low-inertia capstan motors under circumstances where the capstan load during startup may vary widely. A stiction handler provides dynamic control of the motor drive voltage imposed to overcome stationary friction, minimizing the power consumption on startup independently of variations in drag load or motor inertia. A stepped speed-up signal is applied to the motor instead of a conventional constant current-limited signal or sawtooth ramp signal. Motor speed regulation is imposed at each step of a stepped speed-up drive signal. This invention is particularly useful, for example, in low-power magnetic tape drives that must efficiently adapt to variations in drag between one tape cassette or cartridge and another.

摘要翻译： 在启动期间主导轴负载可能变化很大的情况下，用于启动和调速低惯性绞盘电机的系统和装置。 静态处理器可以动态地控制电机驱动电压，以克服固定摩擦，使启动时的功耗最小化，无论阻力负载或电机惯量的变化如何。 步进加速信号被施加到电动机，而不是传统的恒定电流限制信号或锯齿波形信号。 在步进加速驱动信号的每一步施加电机调速。 本发明在例如低功率磁带驱动器中特别有用，其必须有效地适应一个磁带盒或磁带盒与另一磁带盒之间的拖动变化。