Power Electronics

Patents

DC POWER SUPPLY WITH INPUT VOLTAGE POLARITY INDICATION

United States Patent
7,482,712

Ford , et al.
January 27, 2009

A multi-mode electromagnetic radiation emitting device comprising at least one source of electromagnetic radiation which emits radiation according to predefined or programmable user selectable instruction sets is disclosed. Reversal of the polarity of the device's power supply allows for enhanced features to be accessed including multiple instruction sets per switch setting, reprogramming mode, infra-red (covert) mode, night mode and water activation mode. A switch mechanism for providing selectable switched circuit connections is also disclosed as well as a power supply for supplying DC power to an electronic circuit comprising at least one microcontroller or microprocessor.

Inventors: Ford; Timothy (Beaconsfield, CA), Gascon; Stephane (Mascouche, CA)

Assignee: The Flewelling Ford Family Trust (Beaconsfield, CA)

Appl. No.: 11/227,388

Filed: September 15, 2005

SYSTEM, METHOD AND APPARATUS FOR CONTROLLING CONVERTERS USING INPUT-OUTPUT LINEARIZATION

United States Patent
7,482,794

Hunt , et al.
January 27, 2009

The present invention provides a system, method and apparatus for controlling any type of converter using input-output linearization and leading-edge modulation. The controller includes a summing circuit connected to the converter to create a third voltage representing a difference between the first voltage and the second voltage. A gain circuit is connected to the summing circuit to adjust the third voltage by a proportional gain. A modulating circuit is connected to the gain circuit, the converter, the second voltage and the second current to create a control signal based on the second voltage, the adjusted third voltage, the first current and the second current. The control signal is used to control the converter. Typically, the first voltage is an output voltage from the converter, the second voltage is a reference voltage, the first current is an inductor current from the converter and the second current is a reference current.

Inventors: Hunt; Louis R. (Plano, TX), Taylor; Robert J. (Garland, TX)

Assignee: Board of Regents, The University of Texas System (Austin, TX)

Appl. No.: 11/039,167

Filed: January 20, 2005

ACTIVE CURRENT SHARING MULTIPHASE DC-DC CONVERTER

United States Patent
7,479,772

Zane , et al.
January 20, 2009

A converter module for use as a phase in a multiphase DC-DC converter having a data bus for transferring current-sharing information is provided. The converter module includes a power stage and a controller. The power stage comprises an input for receiving an input voltage and an output for providing an output voltage and an output current. The controller is coupled to the power stage to receive a feedback signal from the power stage. The controller further comprises a data bus port configured to receive the current-sharing information from the data bus and provide updated current-sharing information to the data bus.

Inventors: Zane; Regan A. (Superior, CO), Maksimovic; Dragan (Boulder, CO), Zhang; Yang (Boulder, CO)

Assignee: The Regents of the University of Colorado (Boulder, CO)

Appl. No.: 11/364,886

Filed: February 27, 2006

SEMICONDUCTOR INTEGRATED CIRCUIT DEVICE

United States Patent
7,479,806

Teh , et al.
January 20, 2009

The semiconductor integrated circuit device is a semiconductor integrated circuit device having a pulse generator and a latch circuit. The pulse generator has a first charge/discharge path and a second charge/discharge path and a charge unit for pre-charging first nodes. The first charge/discharge path and the second charge/discharge path include: two first switching units, connected to the first nodes, and configured to control, according to an input signal, conduction and non-conduction of the first charge/discharge path and the second charge/discharge path; and a second switching unit, disposed between a second node and a reference voltage node, and configured to be turned on in a period prior to capturing the input signal to allow an electric charge accumulated at the second node to be discharged to the reference voltage node, and at the same time, configured to be turned on in a period of capturing the input signal to allow the first node to discharge.

Inventors: Teh; Chen Kong (Tokyo, JP), Hamada; Mototsugu (Kanagawa, JP)

Assignee: Kabushiki Kaisha Toshiba (Tokyo, JP)

Appl. No.: 11/476,106

Filed: June 28, 2006

DYNAMIC MULTIPHASE OPERATION

United States Patent
7,479,766

Sutardja , et al.
January 20, 2009

An output regulator comprises M switch arrays, where M is an integer greater than 2. A controller selectively enables N of the M switch arrays in response to a sense signal. The sense signal is based on an output of the output regulator. The controller generates drive signals to control the N of the M switch arrays, where N is an integer greater than or equal to 0 and less than or equal to M. When N is greater than 0, the controller dynamically sets a phase interval between the N of the M switch arrays to one of greater than 360/N or less than 360/N.

Inventors: Sutardja; Sehat (Los Altos Hills, CA), He; Runsheng (Sunnyvale, CA)

Assignee: Marvell World Trade Ltd. (St. Michael, BB)

Appl. No.: 11/895,673

Filed: August 27, 2007

POWER CONVERTER CONNECTION CONFIGURATION

United States Patent
7,450,388

Beihoff , et al.
November 11, 2008

EMI shielding is provided for power electronics circuits and the like via a direct-mount reference plane support and shielding structure. The thermal support may receive one or more power electronic circuits. The support may aid in removing heat from the circuits through fluid circulating through the support. The support forms a shield from both external EMI/RFI and from interference generated by operation of the power electronic circuits. Features may be provided to permit and enhance connection of the circuitry to external circuitry, such as improved terminal configurations. Modular units may be assembled that may be coupled to electronic circuitry via plug-in arrangements or through interface with a backplane or similar mounting and interconnecting structures.

Inventors: Beihoff; Bruce C. (Wauwatosa, WI), Kehl; Dennis L. (Milwaukee, WI), Gettelfinger; Lee A. (Brown Deer, WI), Kaishian; Steven C. (Milwaukee, WI), Phillips; Mark G. (Brookfield, WI), Radosevich; Lawrence D. (Muskego, WI)

Assignee: Rockwell Automation Technologies, Inc. (Mayfield Heights, OH)

Appl. No.: 10/663,172

Filed: September 16, 2003

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