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| Number | Title | Issue Date |
| 8085541 | Thin flat panel video display This document describes apparatus and methods for supplying electrical operating power to a thin form-factor display device, such as a flat panel video display device. In an illustrative example, components of a power supply for a flat panel video display are arrang... | 12/27/2011 |
| 7952879 | System and apparatus for efficient heat removal from heat-generating electronic modules This document describes apparatus and methods for a self-contained assembly having an encapsulated electronic module coupled to a heat removal device by a thermally conductive substance. In an illustrative example, the module includes at least one heat dissipating d... | 05/31/2011 |
| 7940540 | Universal AC adaptor A method and apparatus for adaptively configuring an array of voltage transformation modules is disclosed. The aggregate voltage transformation ratio of the adaptive array is adjusted to digitally regulate the output voltage for a wide range of input voltages. An in... | 05/10/2011 |
| 7920391 | Double-clamped ZVS buck-boost power converter A transformer-coupled buck-boost DC-DC power converter is disclosed. An active clamp circuit is provided to form a resonant circuit with the transformer to control the slew rate of the secondary current and allow the secondary switch to be turned ON at conditions of... | 04/05/2011 |
| 7799615 | Power converter package and thermal management Power conversion apparatus can include a circuit board with power conversion circuitry and a package. The package may be formed by encapsulating areas of the circuit board assembly either before or after the interface contacts are attached to the circuit board. A me... | 09/21/2010 |
| 7782639 | Adaptively configured and autoranging power converter arrays Multi-cell DC-DC power converters are described. In an adaptive version the isolated regulating multi-cell converter adaptively configures the input cells in a series connection to share the input voltage and in a parallel configuration to share the input current. D... | 08/24/2010 |
| 7616465 | Energy storage and hold-up method and apparatus for high density power conversion A method and apparatus for adaptively configuring an array of voltage transformation modules is disclosed. The aggregate voltage transformation ratio of the adaptive array is adjusted to digitally regulate the output voltage for a wide range of input voltages. An in... | 11/10/2009 |
| 7561446 | Double-clamped ZVS buck-boost power converter A transformer-coupled buck-boost DC-DC power converter is disclosed. An active clamp circuit is provided to form a resonant circuit with the transformer to control the slew rate of the secondary current and allow the secondary switch to be turned ON at conditions of... | 07/14/2009 |
| 7548441 | Universal AC adapter A method and apparatus for adaptively configuring an array of voltage transformation modules is disclosed. The aggregate voltage transformation ratio of the adaptive array is adjusted to digitally regulate the output voltage for a wide range of input voltages. An in... | 06/16/2009 |
| 7423892 | Adaptively configured and autoranging voltage transformation module arrays A method and apparatus for adaptively configuring an array of voltage transformation modules is disclosed. The aggregate voltage transformation ratio of the adaptive array is adjusted to digitally regulate the output voltage for a wide range of input voltages. An in... | 09/09/2008 |
| 7420825 | Adaptively configured voltage transformation module array A method and apparatus for adaptively configuring an array of voltage transformation modules is disclosed. The aggregate voltage transformation ratio of the adaptive array is adjusted to digitally regulate the output voltage for a wide range of input voltages. An in... | 09/02/2008 |
| 7408795 | Energy storage and hold-up method and apparatus for high density power conversion A method and apparatus for adaptively configuring an array of voltage transformation modules is disclosed. The aggregate voltage transformation ratio of the adaptive array is adjusted to digitally regulate the output voltage for a wide range of input voltages. An in... | 08/05/2008 |
| 7361844 | Power converter package and thermal management Power conversion apparatus includes a circuit board with power conversion circuitry and a package having an upper portion and a lower portion that respectively enclose circuitry on a top surface and a bottom surface of the circuit board. The lower portion encloses a... | 04/22/2008 |
| 7353587 | Forming distributed gap magnetic cores A method of manufacturing a magnetic core includes providing a substrate with magnetically permeable material that has a first region and a second region near the first region, providing support to maintain a juxtaposition between the first region and the second reg... | 04/08/2008 |
| 7236086 | Power converter configuration, control, and construction A transformer having galvanically isolated windings defines a primary side and a secondary side of a power conversion apparatus. A switch couples power from a source on the primary side via the transformer to a load on the secondary side. A first circuit assembly ha... | 06/26/2007 |
| 7233469 | Components having actively controlled circuit elements Protection and filtering functions are provided for external circuits by internal circuits that use controlled elements. ... | 06/19/2007 |
| 7212419 | Adaptively configured and autoranging voltage transformation module arrays A method and apparatus for adaptively configuring an array of voltage transformation modules is disclosed. The aggregate voltage transformation ratio of the adaptive array is adjusted to digitally regulate the output voltage for a wide range of input voltages. An in... | 05/01/2007 |
| 7202646 | Control interface with droop compensation A droop compensation system includes a controlled current source that provides a scaled model of the PRM output current or VTM input current on an interface connection. A controlled resistance modeling the VTM effective series input resistance is connected across th... | 04/10/2007 |
| 7187263 | Printed circuit transformer A circuit board has apertures. Separate magnetic flux paths each form a closed loop that passes through at least one of the apertures and surrounds an interior space. The flux paths comprising portions that lie within magnetically permeable core pieces. At least two... | 03/06/2007 |
| 7170764 | Adaptively configured voltage transformation module array A method and apparatus for adaptively configuring an array of voltage transformation modules is disclosed. The aggregate voltage transformation ratio of the adaptive array is adjusted to digitally regulate the output voltage for a wide range of input voltages. An in... | 01/30/2007 |
| 7154250 | Buck-boost DC—DC switching power conversion Apparatus operates at a power level within a range of power levels that includes a rated maximum power level of the apparatus. The apparatus includes circuit elements to deliver power at an output voltage to a load from a source at an input voltage using an inductor... | 12/26/2006 |
| 7145786 | Point of load sine amplitude converters and methods In a preferred embodiment, a Sine Amplitude Converter (“SAC”) method and apparatus for VTMs converts a DC input voltage to a DC output voltage using a fixed transformation ratio at a frequency locked to a resonance. The SAC uses a resonant circuit including a tr... | 12/05/2006 |
| D520947 | Power converter body | 05/16/2006 |
| 7038917 | Low loss, high density array interconnection An interconnect architecture in which a substrate such as a printed circuit board includes multiple conductive layers separated by one or more interposed insulating layers, the conductive layers being adapted to receive a high density array of interconnect elements ... | 05/02/2006 |
| 7015561 | Active rectifier A switching circuit has an active switch, a controller, and at least two terminals. The at least two terminals include two current control terminals for connection at two locations in another circuit. The controller is configured to turn the active switch off to blo... | 03/21/2006 |
| 6985341 | Components having actively controlled circuit elements Circuitry provides various protection mechanisms to an external circuit using actively controlled elements. The controlled elements may by controlled to provide overcurrent, overvoltage, or undervoltage protection to an external circuit. ... | 01/10/2006 |
| 6984965 | Factorized power architecture with point of load sine amplitude converters A Factorized Power Architecture (“FPA”) method and apparatus includes a front end power regulator (“PRM) which provides one or more controlled DC bus voltages which are distributed through the system and converted to the desired load voltages using one or more... | 01/10/2006 |
| 6975098 | Factorized power architecture with point of load sine amplitude converters A Factorized Power Architecture (“FPA”) method and apparatus for supplying power to highly transient loads such as microprocessors includes a front end power regulator (“PRM) which provides a controlled DC bus voltage which is converted to the desired load vol... | 12/13/2005 |
| 6969909 | Flip chip FET device In accordance with one embodiment of the invention, a semiconductor device includes conductive pad areas, and each conductive pad area is electrically connected to a plurality of metal traces which are in turn each connected to diffusions. A conductive contact eleme... | 11/29/2005 |
| D510906 | Power converter | 10/25/2005 |
| 6940013 | Surface mounting a power converter A power converter includes electrical contacts arranged on a first surface and a connection device. The converter has a top surface above the first surface and a bottom surface below the first surface. A border of the bottom surface is inset from a border of the sec... | 09/06/2005 |
| 6934166 | Output resistance modulation in power converters Modulation control circuitry modulates the equivalent output resistance of a power converter, for example a Sine Amplitude Converter, by varying the ON resistance of the primary switches in the converter. The modulation control circuitry may be used to “soft-start... | 08/23/2005 |
| 6930893 | Factorized power architecture with point of load sine amplitude converters A Factorized Power Architecture (“FPA”) includes a power regulator providing controlled DC bus voltages distributed and converted to load voltages, at the load, using DC voltage transformation modules (“VTMs”) having fixed transformation ratios. Optional fee... | 08/16/2005 |
| 6911848 | Low-loss transformer-coupled gate driver Low-loss, common-source gate-control topologies may be used to efficiently drive a multiplicity of switches at frequencies greater than 1 MHz and over a range of duty cycles, including 50%. The control switches can be controlled at high speed using simple, directly-... | 06/28/2005 |
| D506438 | Power converter body | 06/21/2005 |
| D505114 | Ball grid array | 05/17/2005 |
| 6847853 | Fabrication rules based automated design and manufacturing system and method An automated custom power supply design system uses an expert system containing a set of rules, including manufacturing limitations to limit design choices and ensure feasibility and manufacturability of the design. A design interface collects specifications from a ... | 01/25/2005 |
| 6788033 | Buck-boost DC-DC switching power conversion Apparatus operates at a power level within a range of power levels that includes a rated maximum power level of the apparatus. The apparatus includes circuit elements to deliver power at an output voltage to a load from a source at an input voltage using an inductor... | 09/07/2004 |
