Three-segment type LED lamp control circuit with adjustable output

• Main Authors: TANG YONGFENG, JIN JINTAO, LIU CHONGDE, YE LIEWU, CHEN LONGYIN, YOU BINGYANG
• Format: Patent
• Language: Chinese; English
• Published: 12.10.2016
• Subjects: ELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR; ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR; ELECTRICITY

The invention discloses a three-segment type LED lamp control circuit with adjustable output, and the circuit comprises a three-segment type selection switching circuit, a rectification filter circuit, two detection circuits, a constant-current control circuit, and a group of LED lamps. An alternating current passes through the three-segment type selection switching circuit to reach the rectification filter circuit, and the rectification filter circuit carries out the conversion of the alternating current and outputs the converted current to the constant current control circuit. The constant current control circuit outputs the current to the LED for power supply. The output end of the three-segment type selection switching circuit is connected with the two detection circuits, and the output ends of the detection circuits are connected with the constant current control circuit. The circuit provided by the invention has the following advantages that the circuit achieves wide voltage input; the three-segment typ