Patents by Inventor Robert Deuchars
Robert Deuchars has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 9577590Abstract: A direct current (DC)-DC converter, which includes a charge pump buck power supply and a buck power supply is disclosed. The charge pump buck power supply includes a charge pump buck converter, a first inductive element, and an energy storage element. The charge pump buck converter and the first inductive element are coupled in series between a DC power supply, such as a battery, and the energy storage element. The buck power supply includes a buck converter, a second inductive element, and the energy storage element. The buck converter and the second inductive element are coupled in series between the DC power supply and the energy storage element. As such, the charge pump buck power supply and the buck power supply share the energy storage element.Type: GrantFiled: July 9, 2013Date of Patent: February 21, 2017Assignee: Qorvo US, Inc.Inventors: Chris Levesque, Jean-Christophe Berchtold, Joseph Hubert Colles, Robert Deuchars, William David Southcombe, David Zimlich, David E. Jones, Scott Yoder, Terry J. Stockert
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Patent number: 9214865Abstract: The present disclosure relates to a flexible direct current (DC)-DC converter, which includes a charge pump buck power supply and a buck power supply. The charge pump buck power supply and the buck power supply are voltage compatible with one another at respective output inductance nodes to provide flexibility. In one embodiment of the DC-DC converter, capacitances at the output inductance nodes are at least partially isolated from one another by using at least an isolating inductive element between the output inductance nodes to increase efficiency. In an alternate embodiment of the DC-DC converter, the output inductance nodes are coupled to one another, such that the charge pump buck power supply and the buck power supply share a first inductive element, thereby eliminating the isolating inductive element, which reduces size and cost but may also reduce efficiency.Type: GrantFiled: September 7, 2011Date of Patent: December 15, 2015Assignee: RF Micro Devices, Inc.Inventors: Chris Levesque, Jean-Christophe Berchtold, Joseph Hubert Colles, Robert Deuchars, William David Southcombe, David Zimlich, David E. Jones, Scott Yoder, Terry J. Stockert
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Patent number: 8811920Abstract: A direct current (DC)-DC converter having a DC-DC converter semiconductor die and an alpha flying capacitive element is disclosed. The DC-DC converter semiconductor die includes a first series alpha switching element, a second series alpha switching element, a first alpha flying capacitor connection node, which is about over the second series alpha switching element, and a second alpha flying capacitor connection node, which is about over the first series alpha switching element. The alpha flying capacitive element is electrically coupled between the first alpha flying capacitor connection node and the second alpha flying capacitor connection node. By locating the first alpha flying capacitor connection node and the second alpha flying capacitor connection node about over the second series alpha switching element and the first series alpha switching element, respectively, lengths of transient current paths may be minimized, thereby reducing noise and potential interference.Type: GrantFiled: November 2, 2011Date of Patent: August 19, 2014Assignee: RF Micro Devices, Inc.Inventors: Robert Deuchars, Jean-Christophe Berchtold, Joseph Hubert Colles, David Zimlich, Chris Levesque, William David Southcombe, David E. Jones, Scott Yoder, Terry J. Stockert
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Publication number: 20130293310Abstract: A direct current (DC)-DC converter, which includes a charge pump buck power supply and a buck power supply is disclosed. The charge pump buck power supply includes a charge pump buck converter, a first inductive element, and an energy storage element. The charge pump buck converter and the first inductive element are coupled in series between a DC power supply, such as a battery, and the energy storage element. The buck power supply includes a buck converter, a second inductive element, and the energy storage element. The buck converter and the second inductive element are coupled in series between the DC power supply and the energy storage element. As such, the charge pump buck power supply and the buck power supply share the energy storage element.Type: ApplicationFiled: July 9, 2013Publication date: November 7, 2013Inventors: Chris Levesque, Jean-Christophe Berchtold, Joseph Hubert Colles, Robert Deuchars, William David Southcombe, David Zimlich, David E. Jones, Scott Yoder, Terry J. Stockert
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Publication number: 20120313173Abstract: Buried implants are used to reduce RF (radio-frequency) coupling in a SOI (Silicon-on-insulator) circuit. These buried implants are located above and/or below the BOX (buried oxide) layer of the SOI circuit. These buried implants may completely enclose the PWELL (P-type well) of an NFET (N-type Field Effect Transistor).Type: ApplicationFiled: June 7, 2012Publication date: December 13, 2012Applicant: RF MICRO DEVICES, INC.Inventors: Carl Dickey, Nathaniel Peachey, Robert Deuchars
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Publication number: 20120280746Abstract: A direct current (DC)-DC converter having a DC-DC converter semiconductor die and an alpha flying capacitive element is disclosed. The DC-DC converter semiconductor die includes a first series alpha switching element, a second series alpha switching element, a first alpha flying capacitor connection node, which is about over the second series alpha switching element, and a second alpha flying capacitor connection node, which is about over the first series alpha switching element. The alpha flying capacitive element is electrically coupled between the first alpha flying capacitor connection node and the second alpha flying capacitor connection node. By locating the first alpha flying capacitor connection node and the second alpha flying capacitor connection node about over the second series alpha switching element and the first series alpha switching element, respectively, lengths of transient current paths may be minimized, thereby reducing noise and potential interference.Type: ApplicationFiled: November 2, 2011Publication date: November 8, 2012Applicant: RF MICRO DEVICES, INC.Inventors: Robert Deuchars, Jean-Christophe Berchtold, Joseph Hubert Colles, David Zimlich, Chris Levesque, William David Southcombe, David E. Jones, Scott Yoder, Terry J. Stockert
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Publication number: 20120062205Abstract: The present disclosure relates to a flexible direct current (DC)-DC converter, which includes a charge pump buck power supply and a buck power supply. The charge pump buck power supply and the buck power supply are voltage compatible with one another at respective output inductance nodes to provide flexibility. In one embodiment of the DC-DC converter, capacitances at the output inductance nodes are at least partially isolated from one another by using at least an isolating inductive element between the output inductance nodes to increase efficiency. In an alternate embodiment of the DC-DC converter, the output inductance nodes are coupled to one another, such that the charge pump buck power supply and the buck power supply share a first inductive element, thereby eliminating the isolating inductive element, which reduces size and cost but may also reduce efficiency.Type: ApplicationFiled: September 7, 2011Publication date: March 15, 2012Applicant: RF Micro Devices, Inc.Inventors: Chris Levesque, Jean-Christophe Berchtold, Joseph Hubert Colles, Robert Deuchars, William David Southcombe, David Zimlich, David E. Jones, Scott Yoder, Terry J. Stockert