Switching regulators, power management devices and systems including the same
US9590505B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 17, 2014 |
| Grant date | Mar 7, 2017 |
| Priority date | — |
| Expiry date | Mar 6, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M1/008
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A switching regulator includes a DC-DC converter and a dynamic voltage positioning circuit. The DC-DC converter includes an inductor connected between an input port and an output port. The dynamic voltage positioning circuit includes a sensing circuit and a mirroring circuit. The sensing circuit is configured to sense an inductor current flowing through the inductor, and to convert a voltage applied to a direct current resistance (DCR) of the inductor into a droop current using a variable resistor. The mirroring circuit is configured to cause a voltage drop at the output port of the DC-DC converter based on a current corresponding to a difference between a bias current and the droop current.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.