Silicon controlled rectifier dimming constant current power supply, formed LED system, and control method
A technology of LED system and constant current power supply, which is applied in the field of constant current power supply, which can solve the problems of power supply and lamp bead life damage, difficulty in meeting brightness, color temperature, color change requirements, unfavorable long-term stable use of LED products, etc., to achieve operation Simple and convenient, flexible control objects, high practical value effect
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[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments, and the mode of the present invention includes but not limited to the following embodiments.
[0025] Such as figure 1 with figure 2 As shown, the present invention is mainly composed of three parts: a separate AC controller, a thyristor power supply and an LED lamp in terms of system architecture. The 220V city power is first chopped by a separate AC controller and then input to the thyristor power supply circuit. After the thyristor power supply circuit detects the size of the conduction angle, it changes the output power of the power supply according to its size change. The change of the output power Cause the brightness, color temperature and color of LED lamps to change, so as to realize the dimming of LED lamps. According to the needs of actual scenarios, the separate AC controller can be connected to one thyristor power supply, or multiple thyrist...
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