Switching regulator
US8040121B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 21, 2010 |
| Grant date | Oct 18, 2011 |
| Priority date | — |
| Expiry date | Dec 21, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M1/32
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A switching regulator is configured to generate an output voltage by stepping down an input voltage by switching control of a switching element. The switching regulator includes a first comparator configured to compare a feedback voltage of the output voltage and a target voltage; a second comparator configured to compare magnitude of a current flowing through the switching element and a predetermined value; an on-time timer configured to measure fixed on-time for on-control of the switching element; an off-time timer configured to measure fixed off-time for off-control of the switching element; and a control circuit configured to perform the on-control of the switching element with the fixed on-time in accordance with an output of the first comparator, and the off-control of the switching element with the fixed off-time in accordance with an output of the second comparator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.