公开(公告)号：US20150028825A1

公开(公告)日：2015-01-29

申请号：US14378751

申请日：2012-03-07

Applicant: ST-Ericsson SA

Inventor： Jingwen Mao ,  Zhiyong Luo ,  Kaihua Zheng

IPC: H02M3/04 ,  H02M1/08

CPC classification number: H02M3/04 ,  H02M1/08 ,  H02M3/157 ,  H02M3/1588 ,  H02M2001/0003 ,  Y02B70/1466

Abstract: A control circuit (115), a control method, a DC-DC converter and an electronic device are provided. The control circuit (115) is used to control the DC-DC converter to switch its operation modes. In the control circuit (115), whether mode of the DC-DC converter is to be switched is judged according to parameters of a first duration of an active duration and a second duration of an inactive duration. Comparison of analogue values is prevented, and as a result, the use of the analogue comparator is reduced, thus the influence of the semiconductor processes on designing a controller can be reduced.

Abstract translation: 提供控制电路（115），控制方法，DC-DC转换器和电子设备。 控制电路（115）用于控制DC-DC转换器切换其工作模式。 在控制电路（115）中，根据活动持续时间的第一持续时间和非活动持续时间的第二持续时间的参数来判断是否要切换DC-DC转换器的模式。 可以防止模拟值的比较，结果减少了模拟比较器的使用，从而可以降低半导体工艺对设计控制器的影响。