| Patent application number | Description | Published |
|---|
| 20090185398 | Integrated magnetics switching converter with zero inductor and output ripple currents and lossless switching - Switching Converter with a novel two-loop Integrated magnetic structure integrates transformer and two output inductors and eliminates large circulating current in the transformer secondary side resulting in ultra high efficiency and zero ripple output current as well as zero ripple currents in both output inductors simultaneously. The novel lossless switching method eliminates the primary side switching losses to result in switching converter with highest efficiency, compact size and additional performance advantages, such as ultra low output ripple voltage, low EMI noise and improved reliability with additional benefits when operated with a front-end Power Factor Converter for computer server applications. | 07-23-2009 |
| 20100259240 | Bridgeless PFC converter - A truly Bridgeless PFC converter is provided which eliminates the four-diode bridge rectifier and operates directly from the AC line to result in high-efficiency, small size and low cost solution for Power Factor Correction applications. | 10-14-2010 |
| 20100259241 | Voltage step-down switching DC-to-DC converter - A number of non-isolated and isolated converter embodiments are disclosed all featuring the three switches and characteristic not present in prior-art converters such as: a) reduced voltage stresses on all three switches resulting in safe operation without a danger of voltage overstress of any of the three switches over the full operating range from duty ratio of 0 to 1.0 and thus resulting in wide input voltage operating. b) operating range with magnetics flux and magnetic size much reduced compared to prior-art converters c) stressless switching eliminates switching losses and reduces stresses which are present in prior-art converters. All three features result in simultaneous increase of efficiency, reduction of size and cost when compared with prior-art converters. | 10-14-2010 |
| 20110057640 | Storageless step-down switching DC-DC converter - A storageless DC-DC converter is provided having simultaneously ultra high efficiency of 99.5% in an ultra compact size leading to 1 kW/inch | 03-10-2011 |
| 20110169474 | Step-down switching PFC converter - The step-down switching converter is provided, which promises to replace the conventional buck converter in many applications due to its many advantage, such as higher efficiency, smaller size, fast transient response and lower cost among other benefits. | 07-14-2011 |
| 20110175591 | Step-down low ripple switching converter - The step-down switching converter is provided, which promises to replace the conventional buck converter in many applications due to its many advantage, such as higher efficiency, smaller size, fast transient response and lower cost and ultra low output ripple voltage among other benefits. | 07-21-2011 |
| 20110285369 | Three-switch step-down converter - A three-switch step-down converter provides efficiency, size, cost and other performance advantages over the conventional two-switch buck converter and other step-down converters, over the entire duty ratio operating range. | 11-24-2011 |
| 20110292703 | Single-stage AC-to-DC converter with isolation and power factor correction - A new class of Single-Stage AC-DC converters with built-in Isolation and PFC feature is introduced along with the companion hybrid switching conversion method. Several different converter topologies are introduced, which all feature three switches only, single magnetic component and low voltage stresses on all switches. | 12-01-2011 |
