LED DRIVE POWER START-UP CIRCUIT AND START-UP METHOD

• Main Author: ZHANG, XIANWEI
• Format: Patent
• Language: Chinese; English; French
• Published: 23.12.2015
• Subjects: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS,e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USERAPPLICATIONS; ELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR; ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE

Disclosed are a start-up circuit and start-up method of LED drive power, comprising a drive unit and a power factor correction unit mutually connected; the start-up circuit for the LED drive power source further comprises a time delay unit connected between the drive unit and the power factor correction unit; the power factor correction unit generates a control signal and transmits the control signal to the time delay unit; the time delay unit processes the control signal and generates a start-up signal to the drive unit; and the drive unit starts up after receiving the start-up signal. The technical solution coordinates the start-up timing sequence of the power factor correction unit and the drive unit. L'invention concerne un circuit et un procédé de démarrage de puissance de commande de DEL, faisant appel à une unité de commande et à une unité de correction de facteur de puissance mutuellement connectées ; le circuit de démarrage de la source de puissance de commande de DEL comprend en outre une unité de t