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| Number | Title | Issue Date |
| 8179705 | Apparatus and method of optimizing power system efficiency using a power loss model A power subsystem is actively optimized to improve total subsystem efficiency in a way that is responsive to changes in load requirements, power supply variations, and subsystem temperature variations. Detailed, multidimensional power loss models are developed for c... | 05/15/2012 |
| 8064234 | Power conversion apparatus Technology leading to a size reduction in a power conversion apparatus comprising a cooling function and technology relating to enhancing productivity and enhancing reliability necessary for commercial production are provided. Series circuits comprising an upper arm... | 11/22/2011 |
| 7978488 | Three-level power converting apparatus Each phase of a three-level power converting apparatus is configured by a single unit, and four switching devices (1u-4u) and two diodes (9u, 10u) provided in each unit are arranged along a flow direction of co... | 07/12/2011 |
| 7957169 | Power inverter A power inverter comprises at least a box-shaped housing; and a power module, a smoothing capacitor, a base plate made of a flat plate, and a rotating electric machine control circuit board arranged in order in the housing. The base plate is arranged with the fringe... | 06/07/2011 |
| 7957170 | Cooling-fin mounted rectifier for vehicular AC generators A rectifier for an alternating current generator is provided. The rectifier comprise a plurality of high-side rectifying elements and a plurality of low-side rectifying elements. The high-side rectifying elements are held by a plurality of high-side cooling fins, wh... | 06/07/2011 |
| 7830689 | Power converter First and second bases and composing a coolant path structure are arranged at the middle stage of the power converter, and semiconductor modules and a capacitor are arranged on both surfaces of the coolant path structure. Furthermore, through-holes are formed in the... | 11/09/2010 |
| 7782641 | Frequency converting apparatus and control method for the apparatus A power converting apparatus and method includes a converter for converting AC power from a commercial power supply into DC power, a smoothing unit for smoothing the DC power from the converter, an inverter for converting an output of the smoothing unit into another... | 08/24/2010 |
| 7515447 | Method and arrangement in inverter A method and arrangement in connection with an inverter that comprises several power semiconductor components and a control apparatus arranged to control them is disclosed. The method comprises the steps of determining the temperature or an electric quantity affecti... | 04/07/2009 |
| 7505294 | Tri-level inverter A tri-level inverter power module has an architecture employing a high degree of modularity that allows a base power module to be quickly, easily, and cost effectively configured to address a large variety of applications. ... | 03/17/2009 |
| 7471534 | Inverter type motor drive unit An inverter type drive unit for feeding AC electric power of variable parameters to an electric motor has an electronic control section, and a power converting and output section which includes one or more identical power modules, each forming a complete 3-phase out... | 12/30/2008 |
| 7428157 | Apparatus and method for virtually shielding a synchronous switching regulator Virtual shielding is used to reduce the sources/origins of latchup and switching noise in a synchronous switching regulator. The regulator power stage may be split into two half stages. The ground bond wires of the half power stages may be positioned on opposite sid... | 09/23/2008 |
| 7397653 | Inverter design An inverter component layout and mounting bracket are disclosed which allow for electrical components, or the inverter as a whole to be replaced easily in the field. The disclosed mounting bracket and component layout also improve the heat rejection properties of th... | 07/08/2008 |
| 7365446 | Wind power plant having power module mounted on tower foundation and method for use in constructing same The invention relates to a method for constructing a wind energy plant and to a wind energy plant as such. An aim of one aspect of the invention is to provide a method for constructing wind energy plants at lower expenses and more rapidly. According to one aspect, a... | 04/29/2008 |
| 7363768 | Outdoor unit of refrigerator, and electrical equipment box of outdoor unit The present invention reduces the size of an outdoor refrigerator unit of the type that draws in air from a lateral face, exchanges heat with the air, and blows the air out of a top face while ensuring that the electrical equipment box has sufficient volume and supp... | 04/29/2008 |
| 7362557 | Method, apparatus and article for bi-directional DC/DC power conversion A controller implements a state machine for operating the bi-directional power converter with a flexible load pattern while maintaining a thermal condition of the power converter within acceptable limits. The state machine implements a wait loop in response to selec... | 04/22/2008 |
| 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 |
| 7355870 | Switching mode power supply and method for outputting voltage therefrom A switching mode power supply and a method for outputting voltage therefrom are provided, where a transformer receives rectified alternating current (AC) voltage and transforms a voltage value or a current value, a switching transistor is connected to one end of a f... | 04/08/2008 |
| 7352583 | Flexible lead for a pressfit diode bridge An improvement to a bridge rectifier assembly of the type used to convert alternating current produced by an motor vehicle alternator into direct current. The bridge rectifier assembly of this type comprises a heat sink, a plurality of pressfit diodes installed in t... | 04/01/2008 |
| 7339788 | Cooling unit and flow distributing element for use in such unit A liquid-cooled power semiconductor unit has components to be cooled arranged on the upper side of a plate. The bottom side of the plate is cooled by liquid, which is guided along the plate by means of a distributing element, and the liquid inlet and the liquid outl... | 03/04/2008 |
| 7334630 | Closed-loop microchannel cooling system Apparatus and methods according to the present invention utilize micropumps that are capable of generating high pressure and flow without moving mechanical parts and the associated generation of unacceptable electrical and acoustic noise, as well as the associated r... | 02/26/2008 |
| 7333331 | Power unit device and power converter device A power unit device which can be made small, with which special measures of plant and labor at the time of assembly are unnecessary, and of which assembly is easy and universality in its manufacturing aspect is excellent. The power unit device has a heat sink having... | 02/19/2008 |
| 7327578 | Cooling failure mitigation for an electronics enclosure A system for permitting orderly shutdown of electronic components. The system includes an enclosure populated with one or more electronic components. A fan positioned within the enclosure generates an airflow across the one or more electronic components, the airflow... | 02/05/2008 |
| 7317626 | Power converter A power converter of the present invention is connected between a direct current power source and controls power to a load by switching equipment. The converter is equipped with a first conductor for connecting a negative pole of the power converter and the switchin... | 01/08/2008 |
| 7310242 | Self-shielding high voltage distribution box A distribution box for enclosing an electrical connection in an electrical wiring system includes a housing that is resistive to penetration by electromagnetic fields and a plurality of electrical conductors that form the electrical connection. A mirror plate is dis... | 12/18/2007 |
| 7301755 | Architecture for power modules such as power inverters Power converters such as power modules configured as inverters employ modularized approaches. In some aspects, semiconductor devices are thermally coupled directly to thermally conductive substrates without intervening dielectric or insulative structures. Additional... | 11/27/2007 |
| 7295448 | Interleaved power converter A power converter architecture interleaves full bridge converters to alleviate thermal management problems in high current applications, and may, for example, double the output power capability while reducing parts count and costs. For example, one phase of a three ... | 11/13/2007 |
| 7292451 | Architecture for power modules such as power inverters Power converters such as power modules configured as inverters employ modularized approaches. In some aspects, semiconductor devices are thermally coupled directly to thermally conductive substrates without intervening dielectric or insulative structures. Additional... | 11/06/2007 |
| 7289329 | Integration of planar transformer and/or planar inductor with power switches in power converter A power converter integrates at least one planar transformer comprising a multi-layer transformer substrate and/or at least one planar inductor comprising a multi-layer inductor substrate with a number of power semiconductor switches physically and thermally coupled... | 10/30/2007 |
| 7288916 | Pulse width modulation signal generating apparatus having two dead times for on-timings In an apparatus for generating complementary first and second pulse width modulation signals, a signal generating circuit generates a first signal for causing the first pulse width signal to switch from an ON level to an OFF level, a second signal for causing the fi... | 10/30/2007 |
| 7289325 | Power converter cooling A power conversion system which uses a plurality of transistors to convert DC power to AC power is made more efficient by the use of liquid refrigerant to cool the transistors. A plurality of passages are formed in a cold plate on which the transistors are mounted, ... | 10/30/2007 |
| 7289343 | Architecture for power modules such as power inverters Power converters such as power modules configured as inverters employ modularized approaches. In some aspects, semiconductor devices are thermally coupled directly to thermally conductive substrates without intervening dielectric or insulative structures. Additional... | 10/30/2007 |
| 7282824 | Press-fitting method and rectifying device having press-fitted member In a rectifying device for a vehicular AC generator, a rectifying element is press-fitted in a positive-side radiation plate. The radiation plate is prepared in a predetermined shape and an engaging hole is punched in the radiation plate. Four grooves are formed in ... | 10/16/2007 |
| 7272008 | Portable power inverter with pass through device A portable power inverter having a pass through device to facilitate connection and operation of both A.C. and D.C. power consuming devices to a single outlet of a single D.C. power source. Inverter circuitry is electrically coupled to the external D.C. power source... | 09/18/2007 |
| 7265981 | Power supply with heat sink A power supply with heat sink is mounted inside a computer, and includes a support, a circuit board arranged on a surface of the support, and a heat sink provided on another surface of the support. The support defines a slot substantially therein. A plurality of ele... | 09/04/2007 |
| 7262970 | Electronic device A first substrate is fixed to a case. A heat-generating component is placed so as to be in contact with a radiator. A second substrate is mounted with the heat-generating component, and the second substrate is connected with the first substrate. The second substrate... | 08/28/2007 |
| 7259469 | Vehicle auxiliary power unit, assembly, and related methods A truck includes an auxiliary power unit having components specifically selected such that they form a stand-alone unit that can fit within an auxiliary compartment of a vehicle and deliver heating, cooling, and additional electric power to the vehicle. Included is ... | 08/21/2007 |
| 7254952 | Modular wine cellar and wine storage system A wine storage system is formed by a modular frame defined by upright members and cross members arranged to form a three dimensional array of compartments in rows and columns where the upright members and cross members have interconnections therebetween allowing add... | 08/14/2007 |
| 7245896 | Apparatus for improving reception sensitivity of public wave receiver by reducing noise externally-emitted in the public wave receiver An apparatus for improving reception sensitivity of a public wave receiver includes power devices formed in a power supply of the public wave receiver, and a shielding plate for shielding noise generated by the power devices. A signal line for connecting an antenna ... | 07/17/2007 |
| 7245489 | Air conditioning structure for electrical appliances An air conditioning structure for an electrical appliance, which is capable of air-cooling at least one heat-generating electrical component part in a housing of the electrical appliance while suppressing leakage of operation noise from an air intake fan to the outs... | 07/17/2007 |
| 7245099 | Electronic apparatus that allows cooling fan to be driven with certainty even at the time of software malfunction/lock-up or at the time of controller failure A voltage for driving a cooling fan is usually output from a fan voltage control circuit. Whether to cause the fan voltage control circuit to output the drive voltage or not is controlled by a system management utility (software) and a bridge controller (hardware) o... | 07/17/2007 |
