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:
Mar. 07, 2017
Filed:
May. 11, 2015
Analog Devices, Inc., Norwood, MA (US);
Bernhard Strzalkowski, Munich, DE;
Analog Devices, Inc., Norwood, MA (US);
Abstract
A multilevel DC-DC converter includes a voltage source that provides a voltage Voutto at least one charge converter circuit and an output filter capacitor having an associated output voltage Vout. The at least one charge converter circuit includes a transformer having at least one primary winding and at least two secondary windings, a primary and secondary circuit each having at least two switching elements, and a control unit which receives a control signal, such as but not limited to an envelope tracking signal, which represents a desired output voltage. The control unit is arranged to provide output control signals to the respective switching elements of the primary and secondary circuits to activate and deactivate the respective switching elements to obtain a desired output voltage Vout. The multilevel DC-DC converter can be arranged to operate as a boost converter or as a buck-boost converter.