Self-adaptive dimming circuit
The utility model relates to the technical field of LED lighting, and discloses a self-adaptive dimming circuit which is stable in signal switching and high in reliability, and comprises a power drive circuit (203), a direct current filter circuit (300), a first dimming circuit (700), a first photoe...
Gespeichert in:
| Hauptverfasser: | , |
|---|---|
| Format: | Patent |
| Sprache: | chi ; eng |
| Schlagworte: | |
| Online-Zugang: | Volltext bestellen |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| Zusammenfassung: | The utility model relates to the technical field of LED lighting, and discloses a self-adaptive dimming circuit which is stable in signal switching and high in reliability, and comprises a power drive circuit (203), a direct current filter circuit (300), a first dimming circuit (700), a first photoelectric coupler (500), a second dimming circuit (800) and a second photoelectric coupler (600). When the signal value of the first regulation and control signal is smaller than that of the second regulation and control signal, the power driving circuit (203) regulates the brightness of the lamp (400) according to the first regulation and control signal output by the first dimming circuit (700); when the signal value of the first regulation and control signal is greater than the second regulation and control signal, the power driving circuit (203) regulates the brightness of the lamp (400) according to the second regulation and control signal output by the second dimming circuit (800).
本实用新型涉及LED照明技术领域，公开了一种信号切换较为稳定 |
|---|