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    PULSE MODULATION CIRCUIT AND METHOD
    1.
    发明申请
    PULSE MODULATION CIRCUIT AND METHOD 失效
    脉冲调制电路及方法

    公开(公告)号：US20120038335A1

    公开(公告)日：2012-02-16

    申请号：US12956681

    申请日：2010-11-30

    申请人： HSIANG-JUI HUNG ,  KUN-LUNG WU ,  YI-PING LI ,  YONG-XIAN ZHAO ,  SHI-TAO CHEN

    发明人： HSIANG-JUI HUNG ,  KUN-LUNG WU ,  YI-PING LI ,  YONG-XIAN ZHAO ,  SHI-TAO CHEN

    IPC分类号： G05F1/10

    CPC分类号： H02M3/1588 ,  G06F1/26 ,  H02M2001/0032 ,  Y02B70/1466 ,  Y02B70/16

    摘要： A pulse modulation method for adjusting pulse signals according to a working voltage of a load, the method includes the following steps. The working voltage of the load is detected by a feedback terminal of a PWM controller. Whether the load is a light load or a heavy load is determined, if the load is a light load, a pulse skipping mode is entered; the voltage output to the load is detected by the feedback terminal. Whether the voltage output to the load is normal is determined, if the voltage output to the load is low, the pulse skipping mode is stayed for a number of clock cycles; the voltage output to the load is detected to determine whether the voltage is normal. If the voltage output to the load is still low, the pulse skipping mode is jumped out and a normal working mode is entered.

    摘要翻译： 一种用于根据负载的工作电压来调整脉冲信号的脉冲调制方法，该方法包括以下步骤。 负载的工作电压由PWM控制器的反馈端检测。 确定负载是轻负载还是重负载，如果负载是轻负载，则进入脉冲跳跃模式; 通过反馈端检测输出到负载的电压。 确定输出到负载的电压是否正常，如果输出到负载的电压低，则脉冲跳过模式停留多个时钟周期; 检测输出到负载的电压，以确定电压是否正常。 如果输出到负载的电压仍然很低，则跳过脉冲跳跃模式并进入正常工作模式。