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    • 86. 发明专利
    • Motor drive signal generation system, semiconductor device, and electronic apparatus
    • 电机驱动信号发生系统,半导体器件和电子设备
    • JP2014023427A
    • 2014-02-03
    • JP2013141676
    • 2013-07-05
    • Samsung Electronics Co Ltd三星電子株式会社Samsung Electronics Co.,Ltd.
    • HAN YUN-CHEOLKIM JI-HYUN
    • H02P7/06
    • G08B6/00B06B1/0215B06B1/045B06B2201/70
    • PROBLEM TO BE SOLVED: To provide a motor drive signal generation system.SOLUTION: A motor drive signal generation system includes: a voltage distributor for generating a reference voltage by distributing a supply voltage according to a setting; a first control part in which a first input signal which is an analog signal is provided, the first input signal is initialized, and a magnitude of the first input signal is varied in step of a first level so that a first output signal whose magnitude is larger than the reference voltage is outputted; and a second control part in which the first output signal is provided, the first output signal is initialized, and the magnitude of the first output signal is varied in step of a second level which is smaller than the first level, and a second output signal is generated whose magnitude is closer to the reference voltage than the first output signal. The first control part includes a first control logic in which the first output signal is provided, and the magnitude of the first output signal is compared with the reference voltage, for outputting a gain control signal consisting of n-bit, and a first gain adjusting part in which the gain control signal is applied and the magnitude of the first input signal is varied in step of the first level.
    • 要解决的问题:提供一种电动机驱动信号发生系统。电动机驱动信号发生系统包括:电压分配器,用于根据设定分配电源电压产生参考电压; 提供作为模拟信号的第一输入信号的第一控制部分,第一输入信号被初始化,并且第一输入信号的幅度在第一电平的步长中变化,使得其幅度大小的第一输出信号 大于参考电压输出; 以及第二控制部分,其中提供第一输出信号,第一输出信号被初始化,并且第一输出信号的幅度在小于第一电平的第二电平的步长中变化,第二输出信号 产生其幅度比第一输出信号更接近基准电压。 第一控制部分包括第一控制逻辑,其中提供第一输出信号,并且将第一输出信号的幅度与参考电压进行比较,以输出由n位组成的增益控制信号和第一增益调整 其中施加增益控制信号的部分和第一输入信号的幅度在第一级的步骤中变化。