Power supply that maintains auxiliary bias within target range
US8981673B2 · kind B2 · utility
9Cited by
6References
25Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 12, 2012 |
| Grant date | Mar 17, 2015 |
| Priority date | — |
| Expiry date | Oct 13, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B45/385
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A power supply includes a switch configured to control flow of current output from an inductor to an output of the power supply. The switch receives a switching signal from a control circuit. An auxiliary bias is generated to power the control circuit. A bias circuit outputs a bias signal that is used to generate the auxiliary bias. The bias circuit senses a level of the auxiliary bias to control output of the bias signal. Output of the bias signal may be controlled to maintain the level of the auxiliary bias at a target level or within a target range.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.