Switching power supply with direct conversion off AC power source
US7663898B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 7, 2005 |
| Grant date | Feb 16, 2010 |
| Priority date | — |
| Expiry date | Nov 13, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M7/1557
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A power supply circuit, comprising a first reverse blocking transistor coupled to an AC power line; a second reverse blocking transistor coupled to the AC power line; a first inductor provided between the first reverse blocking transistor and the AC power line and configured to store energy; a first diode having a first terminal that is coupled to one end of the first inductor; a first capacitor having a terminal that is coupled to a second terminal of the first diode; and a first output terminal provided between the first diode and the first capacitor. The first and second transistors are arranged in an anti-parallel configuration and together define an AC switch.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.