OLED light source drive control circuit and OLED lamp
US11259387B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 23, 2018 |
| Grant date | Feb 22, 2022 |
| Priority date | — |
| Expiry date | Nov 23, 2038 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B20/30
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present disclosure provides an OLED light source drive control circuit and an OLED lamp. The drive control circuit includes a DC/DC constant voltage module, an external transceiver, a first internal transceiver, a microcontroller unit, a linear constant current module, and an OLED panel and a light source. The microcontroller unit communicates with the first internal transceiver, feeds back the detected output voltage to the DC/DC constant voltage module, and controls the DC/DC constant voltage module to operate. The first internal transceiver is connected with the linear constant current module through a differential bus. The linear constant current module includes a plurality of linear constant current driver ICs, each contains a second internal transceiver, and a differential bus interface of the second internal transceiver is respectively connected with a differential bus communication line connecting with a differential bus interface of the first internal transceiver. The present disclosure has a stronger anti-interference ability and effectively improves the circuit conversion efficiency of the entire drive system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.