Switching power supply, and a method of driving the same
US6842353B2 · kind B2 · utility
41Cited by
4References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 27, 2004 |
| Grant date | Jan 11, 2005 |
| Priority date | — |
| Expiry date | May 27, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B70/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A switching power supply comprising an a.c.-to-d.c. converter circuit for connection to a source of commercial alternating current, and a d.c.-to-d.c. converter circuit for translating the d.c. output voltage of the a.c.-to-d.c. converter into desired d.c. voltage for application to a load. The d.c.-to-d.c. converter circuit is set into operation only after the output voltage of the a.c.-to-d.c. converter circuit has built up sufficiently, in order to preclude instability in the output voltage of the power supply during a startup period.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.