Driving circuit and control method thereof
US9585204B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Dec 23, 2014 |
| Grant date | Feb 28, 2017 |
| Priority date | — |
| Expiry date | Feb 7, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B45/3725
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A driving circuit includes: a switching element having a first terminal to receive an input voltage, and a second terminal; an inductor coupled to the second terminal of the switching element; a switch and a current sensing element coupled in series to the second terminal of the switching element; and a control module compensating a voltage sensed by the current sensing element based on at least one of the input voltage and an output voltage across the switching element and the inductor to generate a compensated signal, and switching the switch from an ON state to an OFF state when the compensated signal exceeds a reference threshold for a delay time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.