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:
Sep. 07, 2021
Filed:
Jul. 19, 2019
Vertiv Energy Systems, Inc., Lombard, IL (US);
John H. Leitner, Lorain, OH (US);
Vertiv Corporation, Columbus, OH (US);
Abstract
A DC-DC power converter includes an input, an output, a power circuit coupled between the input and the output to convert a voltage of a DC power received at the input to a different voltage of a DC power supplied at the output, and a control circuit. The DC-DC power converter also includes a resistor coupled in an input current path to receive an inrush current from the input, a switch coupled in parallel with the resistor to selectively bypass the resistor, and a transistor coupled to control the switch in response to a voltage across the resistor. The transistor is coupled to open the switch when the voltage across the resistor is above a specified inrush threshold to permit current flow through the resistor, and to close the switch when the voltage across the resistor is below the specified inrush threshold to bypass the resistor.