Switched-mode power supply that clock-pulse controls a switching element for supplying a rectified AC voltage to a primary winding of a transformer of the power supply
US6208532A · kind A · utility
5Cited by
1References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 28, 1999 |
| Grant date | Mar 27, 2001 |
| Priority date | — |
| Expiry date | May 28, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M3/33523
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The switched-mode power supply has a transformer with an E-shaped core. Each side limb of the core is surrounded by a winding. The flow of current through the secondary winding is controlled by the output voltage to be regulated. A control signal for controlling the switching frequency of the power supply is decoupled at the primary side winding. This makes it possible to dispense with an optical coupler which would otherwise be necessary.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.