Constant time controller and controlling method for a switching regulator
US9525344B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 3, 2013 |
| Grant date | Dec 20, 2016 |
| Priority date | — |
| Expiry date | Jul 8, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M3/1566
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
In one embodiment, a controlling method for a switching regulator, can include: (i) detecting an output voltage and an inductor current of the switching regulator; (ii) determining if there is a transient change on a load of the switching regulator by using the output voltage and a first reference voltage; (iii) generating a control signal using the output voltage, the inductor current, and a second reference voltage; (iv) controlling a switch of the switching regulator to maintain the output voltage substantially constant when no transient change is determined on the load; and (v) deactivating the control signal to keep the inductor current changing along with a variation tendency of an output current of the switching regulator when a transient change is determined on the load.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.