Self synchronizing power converter apparatus and method suitable for auxiliary bias for dynamic load applications
US8824167B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 18, 2011 |
| Grant date | Sep 2, 2014 |
| Priority date | — |
| Expiry date | Apr 27, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M1/0019
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An auxiliary power supply or bias voltage supply employs a step up switch mode DC/DC power converter topology to supply regulated bias supply voltages, from very low input voltages (e.g., less than 2V). The supply will synchronize to dynamic loads making it particularly useful in circuits with periodic high peak current power demands, for example, gate drive circuits employed in regulated switched mode power converters. When unladed, the supply will efficiently adjust its cycle period to the minimum required to maintain the desired boosted output voltage. Additional transformer windings or a charge pump may be used to generate additional vias voltage sources.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.