Power supply device and display device including the same
US10504475B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 24, 2017 |
| Grant date | Dec 10, 2019 |
| Priority date | — |
| Expiry date | Nov 11, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M1/0009
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A power supply device includes n power supply circuits connected in parallel and a controller to control a number of the operating power supply. The controller includes n detectors, a comparator, and an on/off controller. The n detectors are respectively connected to the n power supply circuits. The n detectors receive feedback current from the number of operating power supply circuits. The comparator compares the feedback current with predetermined first and second reference currents and outputs first, second, and third state signals. The on/off controller determines the number of the operating power supply circuits according to a cumulative number of each of the first to third state signals during a predetermined window section, and controls a on/off state of the power supply circuits according to the determined number.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.