Converters with hold-up operation
US10637363B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 16, 2016 |
| Grant date | Apr 28, 2020 |
| Priority date | — |
| Expiry date | Sep 16, 2036 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B70/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A converter includes a half-bridge circuit including first and second transistors that are connected in series, the half-bridge circuit is connected in parallel with a voltage input and includes a node connected to both the first and second transistors; a resonant inductor connected to the half-bridge circuit and the primary winding of a transformer; a resonant capacitor connected to the half-bridge circuit and the primary winding; a third transistor with a first terminal connected to the half-bridge circuit and a second terminal directly connected to a first terminal of the resonant inductor; and a rectification stage that is connected to the secondary winding of the transformer and that includes first and second synchronous rectifiers. The rectification stage does not use discrete diodes to provide rectification, and during voltage boost operation, the third transistor is turned on and off to maintain an output voltage level.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.