The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 10, 2018
Filed:
Nov. 10, 2017
Nxp Usa, Inc., Austin, TX (US);
Mohammed Mansri, Toulouse, FR;
Philippe Goyhenetche, Fonsorbes, FR;
NXP USA, Inc., Austin, TX (US);
Abstract
A current-mode DC-DC converter includes a power switch and a reset circuit for providing a resettable input signal to the switch. A first feedback loop, coupled to the switch, provides a control signal to the reset circuit to instigate the resettable input signal when a ramp voltage reaches a target peak current value. An inductor is coupled to the switch. A second current control feedback loop includes a current sense circuit that monitors an inductor current influenced by an output of the switch, and a slope compensation circuit for introducing a ramp voltage to a sensed voltage of the switch to control power switch on/off to limit the inductor current. The converter is characterized by a slope compensation effect cancellation circuit coupled to the current sense circuit via the second feedback loop for sensing an inductor peak current and controlling power switch on/off in response to the inductor peak current.