公开(公告)号：US09775205B1

公开(公告)日：2017-09-26

申请号：US15442023

申请日：2017-02-24

Applicant: NXP B.V.

Inventor： Chao Peng ,  Hendrik Boezen

IPC: G05F1/00 ,  H05B37/02 ,  H05B39/04 ,  H05B41/36 ,  H05B33/08 ,  H02M1/08 ,  H02M3/156 ,  H02M1/00

CPC classification number: H05B33/0818 ,  H02M1/08 ,  H02M3/156 ,  H02M2001/0054 ,  Y02B70/1491

Abstract: A method includes activating a transistor providing current to a load via an inductor based on values stored at a first timer and at a second timer. The second timer is enabled based a value of a current conducted at the inductor and based on a value of a reference current. The transistor is deactivated in response to determining that a measurement of time elapsed at the first timer is a predetermined multiple of the second measurement of time.