Switching regulator providing slope compensation and voltage control method thereof
US7605573B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 2, 2006 |
| Grant date | Oct 20, 2009 |
| Priority date | — |
| Expiry date | Sep 2, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M3/33523
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A CMC-type switching regulator is disclosed that includes: a switching element switching to control outputting of input voltage; a smoothing circuit outputting the smoothed output voltage of the switching element to an output terminal; a voltage divider dividing the output voltage; an error amplifier amplifying the difference between reference voltage and the divided voltage; a slope voltage generator generating slope voltage according to the reference voltage, correcting the slope of the slope voltage in accordance with the input-output voltage difference, detecting current flowing through the switching element and generating voltage according to the detected current, and outputting the generated voltage and the corrected slope voltage; a pulse generator outputting a pulse signal having time width according to the output voltages of the error amplifier and the slope voltage generator; and a switching controller controlling the switching of the switching element in accordance with the output signal of the pulse generator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.