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    • 6. 发明授权
    • TUT servo IC architecture
    • TUT伺服IC架构
    • US5491395A
    • 1996-02-13
    • US123325
    • 1993-09-17
    • Larry HutsellCurt BrunerJeff RehGlenn Albert
    • Larry HutsellCurt BrunerJeff RehGlenn Albert
    • G11B19/00G11B19/20G11B21/10G11B33/12G11B21/02
    • G11B33/121G11B19/00G11B19/20G11B21/106
    • An integrated servo circuit that controls the spin motor and voice coil motor of a hard disk drive in response to digital commands that are generated by a microprocessor based controller chip. The servo chip contains a spin motor control circuit and a voice coil control circuit that control the speed of the spin motor and the position of the actuator arm, respectively. The spin motor and voice coil motor control circuits are coupled to a digital to analog converter which converts the digital commands from the controller chip into analog control signals which are utilized to control the spin motor and voice coil motor. Additionally, the servo chip has an analog to digital converter to convert analog signals, such as the servo burst signals, to digital bit strings that relayed to the controller chip. The controller chip and servo chip communicate through a 16 bit synchronous serial port.
    • 一种集成伺服电路,其响应于由基于微处理器的控制器芯片产生的数字命令来控制硬盘驱动器的旋转电机和音圈电机。 伺服芯片包括分别控制旋转马达的速度和致动器臂的位置的旋转马达控制电路和音圈控制电路。 旋转电动机和音圈电动机控制电路耦合到数模转换器,其将来自控制器芯片的数字命令转换成用于控制旋转电动机和音圈电动机的模拟控制信号。 此外,伺服芯片具有模拟数字转换器,用于将诸如伺服脉冲串信号的模拟信号转换成中继到控制器芯片的数字位串。 控制器芯片和伺服芯片通过16位同步串口进行通信。