Patent application number | Description | Published |
20080211310 | PORTABLE POWER SUPPLY APPARATUS CAPABLE OF RECEIVING AC OR DC INPUT POWER - A portable power supply apparatus is provided. The portable power supply apparatus includes an AC-to-DC power adapter, a DC power connector, a DC-to-DC power adapter and an extension power cable. The AC-to-DC power adapter is employed for receiving AC power. The DC power connector is employed for receiving DC power. The DC-to-DC power adapter includes a first DC power input portion, a DC-to-DC power converting circuit and a first DC power output portion. The first DC power input portion is selectively connected to the AC-to-DC power adapter or the DC power connector for receiving a first input DC voltage from the AC-to-DC power adapter or a second input DC voltage from the DC power connector. The DC-to-DC power converting circuit is electrically connected to the first DC power input portion for converting the first input DC voltage or the second input DC voltage into a first DC output voltage. The first DC power output portion is electrically connected to the DC-to-DC power converting circuit for receiving and outputting the first DC output voltage. The extension power cable is connected between the AC-to-DC power adapter and the DC-to-DC power adapter and/or connected to the AC-to-DC power adapter. | 09-04-2008 |
20120119714 | Method and apparatus for load identification - A load communication device and method is provided, that identifies and transmits to a PSU the load requirement to operate a load device that is powered by the PSU, by analyzing the characteristics of current applied to the load device by a given input voltage generated by the PSU. The load communication device is configured to transmit between the PSU and the load device solely over the 2 wire cable that extends between the PSU and the load device. | 05-17-2012 |
20130314188 | Magnetic Structure for Large Air Gap - New and Useful magnetic structures are provided. One feature of the magnetic structures is that they are configured to help minimize the air gap reluctance, improving the magnetic structure's coupling coefficient. Another feature is that reducing the windings AC impedance of a magnetic structure is produced by shielding the winding under ears formed of magnetic material. Still another feature is that leakage inductance of a magnetic structure is reduced, by making ears with cuts which converge toward the magnetic rods that are used in the formation of the structure. | 11-28-2013 |
20130314197 | Magnetic Configuration for High Efficiency Power Processing - Several new and useful features for a magnetic structure are provided. One feature is that the magnetic structures are configured to help minimize the winding's AC losses, improving the system's efficiency. Another feature is that the combination of different magnetic hats creates a shaping path for the magnetic field. Still another feature is that a magnetic hat concept can be applied to a variety of magnetic core shapes. | 11-28-2013 |
20130314200 | Multiple Cells Magnetic Structure for Wireless Power - The magnetic component structures of this invention provides an improved magnetic core and winding arrangement which increases the inductive coupling between the primary and the secondary part compared to a similar single cell structure. | 11-28-2013 |
20140334188 | Soft Switching Converter by Steering the Magnetizing Current - A method is shown to create soft transition in selected topologies by controlling and designing the magnetizing current in the main transformer to exceed the output current at a certain point in the switching cycle. | 11-13-2014 |
20150256087 | Soft Switching Converter with Dual Transformer by Steering the Magnetizing Current - A design and control method is shown to create soft transition in dual transformer half bridge or full bridge topology by controlling the magnetizing current in both transformers to cross zero level and allows soft switching on all the switching elements. | 09-10-2015 |
20150288275 | Input Current Distortion for Minimization of Bulk Capacitor - Controlled input current distortion that reduces voltage ripple on a power factor corrected output is shown. Several methods are presented to reduce this voltage ripple so that the typical capacitor used in off line converters can be reduced in size or stress without affecting power factor significantly. | 10-08-2015 |