METHODS AND CIRCUITS FOR IMPROVING THE DYNAMIC RESPONSE OF A DC-DC CONVERTER

摘要

Methods and circuits are described herein which may be used to improve theunloadingtransient response of a DC-DC converter. In some embodiments the transientresponse may beimproved by improving the way MOSFET switches in the buck converter arecontrolled at thepoint in time when a current transient is detected, and subsequently duringthe transient, in such away that the impact of the current transient is mitigated. In otherembodiments an auxiliarycurrent source is used to provide rapid transient response required by theoverall powerconverter, leaving the main portion of the DC-DC converter to provide longterm stability.