Low-harmonic dimming method of wall-controlled LED lamp
A technology of LED lamps and low harmonics, applied in the field of single live wire low harmonic dimming of wall-controlled LED lamps, can solve the problems of troublesome management, time requirements for switching actions, and high cost
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[0055] The present invention will be described in further detail below with reference to the accompanying drawings and examples, but the embodiments of the present invention are not limited thereto.
[0056] The device that realizes the method of the present invention such as figure 1 As shown, it consists of a wall control switch unit and an LED lamp adjustment drive unit connected in series. The wall control switch unit has a single live wire AC input and a single live wire AC1 output. The LED lamp adjusts the drive unit, the live wire AC1 enters, and the neutral wire N exits.
[0057] The structure of the wall control switch unit is as follows figure 2 As shown, it consists of a single live wire power supply module, a single-chip microcomputer control module, a phase-shift drive module, a zero-crossing detection module, and a given brightness module. The single live wire power supply module has the function of taking power from the off state of the single live wire, and...
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