公开(公告)号：US11455850B2

公开(公告)日：2022-09-27

申请号：US16470914

申请日：2017-12-20

Applicant: ASSA ABLOY AB

Inventor： Anders Cöster ,  Bernt Arbegard

IPC: G07C9/00 ,  H02M3/156 ,  H02M3/158

Abstract: It is presented a power converter for transferring electric power provided on an input terminal to an energy storage element. The power converter comprises: an inductor; a switch connected to selectively control a connection between the inductor and the input terminal; and a comparator, wherein an output of the comparator controls the switch, a first input of the comparator is supplied with a voltage being proportional to a voltage of the input terminal, and a second input of the comparator is supplied with a voltage being proportional to a current from the input terminal; wherein the energy storage element is connected to a point between the inductor and the switch.