Off-line switching power supply for generating negative voltages
US6873139B2 · kind B2 · utility
0Cited by
15References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 4, 2002 |
| Grant date | Mar 29, 2005 |
| Priority date | — |
| Expiry date | Oct 5, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M3/155
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An off-line switching power supply for generating negative voltages without a transformer, comprising a line voltage connection for receiving a line voltage, an inductor having a first terminal and a second terminal, a power MOSFET having a drain and a source, the drain electrically connected to the first terminal of the inductor, the drain electrically connected to the first terminal of the inductor, the source electrically connected to the voltage and the second terminal of the inductor providing a negative output voltage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.