公开(公告)号：US20190123641A1

公开(公告)日：2019-04-25

申请号：US16225771

申请日：2018-12-19

Applicant: Texas Instruments Incorporated

Inventor： Michael Couleur ,  Neil Gibson ,  Antonio Priego

IPC: H02M3/07 ,  H03L7/089 ,  H03L5/02 ,  H03L7/081

Abstract: Disclosed examples include a transient event detector circuit to detect transient events in a switching converter, including a DLL circuit to detect changes in a duty cycle of a pulse width modulation signal used to operate a switching converter, and an output circuit to provide a status output signal in a first state when no transient event is detected, and to provide the status output signal in a second state indicating a transient event in the switching converter in response to a detected change in the duty cycle of the pulse width modulation signal.

公开(公告)号：US10148177B2

公开(公告)日：2018-12-04

申请号：US15392074

申请日：2016-12-28

Applicant: Texas Instruments Incorporated

Inventor： Stefan Herzer ,  Michael Couleur ,  Antonio Priego

IPC: H02M3/158

Abstract: A multi-phase power converter includes a plurality of power channels arranged in parallel to drive an output of the power converter, and a channel selection circuit. Each of the power channels includes a driver, a feedback control circuit coupled to an output of the driver, and a comparator coupled to the feedback control circuit. The channel selection circuit is coupled to the feedback control circuit of each of the power channels. The channel control circuit is configured to: select a different specific one of the power channels to activate in each of a plurality of phases, and introduce an offset voltage into each of the feedback control circuits, except the feedback control circuit of the specific one of the power channels. The feedback control circuit is configured to apply the offset to bias driver output feedback voltage away from a threshold voltage at which the power channel is activated.