Scott W Yoder

US Patent:

7051387, May 30, 2006

Filed:

Dec 30, 2004

Appl. No.:

11/026814

Inventors:

Carla J. Yoder - Medina OH, US
Scott M. Yoder - Medina OH, US

International Classification:

A47G 9/08

US Classification:

5413R, 2 695

Abstract:

A lightweight, portable, button sleeping bag having a plurality of removably-attachable independent fabric liners is provided. The sleeping bag includes article storage pockets. The sleeping bag is adapted to be quickly, easily, and efficiently folded, tightly rolled, and held for compact storage via resilient fasteners. The portable sleeping bag is ideally suited for home use, travel, and overnight visits with family and friends.

US Patent:

8542061, Sep 24, 2013

Filed:

Sep 7, 2011

Appl. No.:

13/226797

Inventors:

Chris Levesque - Fountain Valley CA, US
William David Southcombe - San Diego CA, US
David E. Jones - Cedar Rapids IA, US
Scott Yoder - Holly Springs NC, US
Terry J. Stockert - Cedar Rapids IA, US

Assignee:

RF Micro Devices, Inc. - Greensboro NC

International Classification:

H03G 3/20

US Classification:

330127, 330297, 330296, 327536

Abstract:

The present disclosure relates to a direct current (DC)-DC converter, which includes a charge pump based radio frequency (RF) power amplifier (PA) envelope power supply and a charge pump based PA bias power supply. The DC-DC converter is coupled between RF PA circuitry and a DC power supply, such as a battery. As such, the PA envelope power supply provides an envelope power supply signal to the RF PA circuitry and the PA bias power supply provides a bias power supply signal to the RF PA circuitry. Both the PA envelope power supply and the PA bias power supply receive power via a DC power supply signal from the DC power supply. The PA envelope power supply includes a charge pump buck converter and the PA bias power supply includes a charge pump.

US Patent:

20120062205, Mar 15, 2012

Filed:

Sep 7, 2011

Appl. No.:

13/226831

Inventors:

Chris Levesque - Fountain Valley CA, US
Jean-Christophe Berchtold - Carlsbad CA, US
Joseph Hubert Colles - Bonsall CA, US
Robert Deuchars - Carlsbad CA, US
William David Southcombe - San Diego CA, US
David Zimlich - San Diego CA, US
David E. Jones - Cedar Rapids IA, US
Scott Yoder - Holly Springs NC, US
Terry J. Stockert - Cedar Rapids IA, US

Assignee:

RF Micro Devices, Inc. - Greensboro NC

International Classification:

G05F 5/00

US Classification:

323318

Abstract:

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.

US Patent:

20130307616, Nov 21, 2013

Filed:

Jul 9, 2013

Appl. No.:

13/937810

Inventors:

Chris Levesque - Fountain Valley CA, US
William David Southcombe - San Diego CA, US
David E. Jones - Cedar Rapids IA, US
Scott Yoder - Fuquay Varina NC, US
Terry J. Stockert - Cedar Rapids IA, US

Assignee:

RF MICRO DEVICES, INC. - Greensboro NC

International Classification:

H03F 1/02
H02M 3/00

US Classification:

330127, 323318

Abstract:

Circuitry, which includes a direct current (DC)-DC converter having a first switching power supply is disclosed. The first switching power supply includes a first switching converter, an energy storage element, a first inductive element, which is coupled between the first switching converter and the energy storage element, and a first snubber circuit, which is coupled across the first inductive element. The first switching power supply receives and converts a DC power supply signal to provide a first switching power supply output signal based on a setpoint.