A kind of energy-saving lamp module
A technology of energy-saving lamps and LED lamps, applied in the use of semiconductor lamps, electrical components, electroluminescent light sources, etc., can solve problems such as power waste, and achieve the effect of prolonging life and prolonging life.
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Embodiment 1
[0024] At the first moment, the single-chip microcomputer 20 sends a first control signal to the power supply chip 10 to control the power supply chip 10 to output the first constant voltage and the first constant current. At the same time, the single-chip microcomputer 20 sends the first control signal to the plurality of CMOS switches respectively. A PWM signal to control the plurality of CMOS switches to perform first PWM dimming of the plurality of LED lamps, and then, at the second moment, the single-chip microcomputer 20 sends a second control signal to the power chip 10 to control the power chip 10 outputs a first constant voltage and a second constant current, wherein the second constant current is smaller than the first constant current, and at the same time, the single-chip microcomputer 20 sends a second PWM signal to a plurality of CMOS switches 30 to control the plurality of CMOS switches 30 performs second PWM dimming on the plurality of LED lamps 40 .
[0025] S...
Embodiment 2
[0027] At the first moment, the single-chip microcomputer 20 sends a first control signal to the power supply chip 10 to control the power supply chip 10 to output a first constant voltage and a first constant current, and at the same time, the single-chip microcomputer 20 sends a first PWM signal to the plurality of CMOS switches 30 respectively. signal to control the plurality of CMOS switches 30 to perform first PWM dimming of the plurality of LED lamps 40 . Then, at the second moment, the single-chip microcomputer 20 sends a third control signal to the first group of CMOS switches 30 in the plurality of CMOS switches 30, and sends a fourth control signal to the second group of CMOS switches 30 to control the first group of CMOS switches 30. The first group of LED lamps linked by the switch are lit within a preset time, and the second group of LED lamps connected to the second group of CMOS switches are controlled to be extinguished within the preset time. At the same time, ...
Embodiment 3
[0030] At the first moment, the single-chip microcomputer 20 sends a first control signal to the power supply chip 10 to control the power supply chip 10 to output the first constant voltage and the first constant current, and the single-chip microcomputer 20 sends the first PWM signal to a plurality of CMOS switches 30 respectively to control The plurality of CMOS switches 30 perform the first PWM dimming on the plurality of LED lamps 40; at the second moment, the single-chip microcomputer 20 sends a second control signal to the power chip 10 to control the power chip 10 to output the first constant voltage and the second constant voltage. Current, the second constant current is less than the first constant current, the single chip microcomputer 20 sends a second PWM signal to the plurality of CMOS switches 30 respectively, so as to control the plurality of CMOS switches 30 to perform the second PWM on the plurality of LED lamps 40 At the same time, at the second moment, the s...
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