Pre-stage intelligent dimming isolation authentication LED driving power supply
The invention belongs to the technical field of driving power supplies, and particularly relates to a front-stage intelligent dimming isolation authentication LED driving power supply. The input end of the EMC filter circuit is connected with a mains supply, the output end of the EMC filter circuit...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The invention belongs to the technical field of driving power supplies, and particularly relates to a front-stage intelligent dimming isolation authentication LED driving power supply. The input end of the EMC filter circuit is connected with a mains supply, the output end of the EMC filter circuit is divided into two paths to be connected with the BUCK step-down circuit and the intelligent module independent power supply circuit respectively, and the BUCK step-down circuit is connected with the output rectification filter circuit, the output rectification filter circuit and the MOS tube switch dimming and shunting circuit after being transformed by a transformer. The MOS tube switch dimming and shunting circuit is connected with an LED lamp load for dimming; the intelligent module independent power supply circuit is connected with the intelligent module, and the intelligent module is connected with the MOS tube switch dimming and shunting circuit through the optocoupler signal transmission circuit. A precedi |
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