REDUCTION OF FREQUENCY VARIATION FOR RIPPLE BASED,

专利名称：REDUCTION OF FREQUENCY VARIATION

FOR RIPPLE BASED, CONSTANT-ON-TIMEDC-DC CONVERTERS

发明人：Yue Jing,Ahmad Dashtestani,Shufan Chan申请号：US15088597申请日：20160401

公开号：US20170288537A1公开日：20171005

专利附图：

摘要：Embodiments of a circuit for use with a DC-DC converter are disclosed. In anembodiment, a circuit for controlling frequency variation for a ripple based, constant-on

time DC-DC converter, is discloses. The circuit includes a set/reset (SR) latch, acomparator configured to set the SR latch, and an on-time and frequency variationcontroller configured to reset the SR latch. The on-time and frequency variationcontroller includes a feedback loop configured to increase the rate at which a rampvoltage increases to reduce the time it takes for the ramp voltage to exceed a thresholdvoltage. Embodiments of a method for controlling frequency variation for a ripple based,constant-on time DC-DC converter are also disclosed.

申请人：NXP B.V.

地址：Eindhoven NL

国籍：NL

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