Ripple suppression circuit, suppression method and LED lighting apparatus
US10390393B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 11, 2018 |
| Grant date | Aug 20, 2019 |
| Priority date | — |
| Expiry date | Jan 11, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B45/3725
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A ripple suppression circuit configured to suppress a current ripple provided to a load by a DC converter, can include: a ripple voltage sampling circuit coupled to output terminals of the DC converter, where the ripple voltage sampling circuit is configured to generate a ripple reference voltage that represents a ripple voltage of an output voltage of the DC converter; and a voltage regulation circuit coupled to the load and the ripple voltage sampling circuit, where the voltage regulation circuit is controllable by the ripple reference voltage such that a voltage across the voltage regulation circuit is consistent with the ripple voltage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.