Switch-mode self-coupling auxiliary power device
US7106603B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 23, 2005 |
| Grant date | Sep 12, 2006 |
| Priority date | — |
| Expiry date | May 23, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B70/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A switch-mode self-coupling power device additionally increases a set of high voltage auxiliary winding in the transformer and increases a control circuit and an energy transmitting circuit in the primary side circuit of the conventional circuit. When the load is too low, the control circuit may control the energy transmitting circuit according to the variation of the load so that the voltage of the high voltage auxiliary winding can be transmitted to a controller for operation through the energy transmitting circuit. Therefore, the design of PWM controller (pulse width modulation controller) auxiliary power circuit according to the present invention, which is not limited by the magnitude of a dummy load at the secondary side of the transformer, can conform to international regulations and is a product with industrial purpose and conforming to green mode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.