Virtual load circuit of silicon controlled dimming circuit used for LED indoor illumination

The utility model discloses a silicon controlled dimming circuit used for LED indoor illumination. The silicon controlled dimming circuit comprises an AC input module, a silicon controlled dimmer, a rectifying module and a CC (Constant Current) module, wherein the AC input module is firstly inputted...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: JIANG RONGHU, SU ZHOU, GU YONGDE, WANG YONGBIN
Format: Patent
Sprache:chi ; eng
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Beschreibung
Zusammenfassung:The utility model discloses a silicon controlled dimming circuit used for LED indoor illumination. The silicon controlled dimming circuit comprises an AC input module, a silicon controlled dimmer, a rectifying module and a CC (Constant Current) module, wherein the AC input module is firstly inputted to an AC commercial power, then outputted to the rectifying module via the silicon controlled dimmer, and finally outputted to the CC module after being rectified by the rectifying module; and the CC module is used for driving an LED lamp. The silicon controlled dimming circuit further comprises a virtual load module connected on the output end of the rectifying module. In the virtual load circuit, the virtual load module is connected on the output end of the rectifying module and is combined via a special virtual load circuit, so that the electricity maintenance problem of the silicon controller dimmer is solved, the silicon controlled dimmer is prevented from being repeatedly turned off or on due to insufficient