Color rending adjustable LED lamp control circuit
The utility model discloses a color rending adjustable LED lamp control circuit. A plurality of red-light LED bulbs (2) and a plurality of blue-light LED bulbs (3) are arranged on a circular LED substrate (1) at intervals, the AC input end of an AC-DC converter is connected with a mains supply, the...
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Sprache: | eng |
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Zusammenfassung: | The utility model discloses a color rending adjustable LED lamp control circuit. A plurality of red-light LED bulbs (2) and a plurality of blue-light LED bulbs (3) are arranged on a circular LED substrate (1) at intervals, the AC input end of an AC-DC converter is connected with a mains supply, the DC output end of the AC-DC converter is connected with a single-pole double-throw switch through a high-frequency suppression magnetic bead L and a resistor R in sequence, a capacitor C1 and a capacitor C2 are parallelly connected with the two ends of the resistor R, the enable signal input end of the single-pole double-throw switch is connected with a switch driving signal, and the output end of the single-pole double-throw switch is connected with a red-light LED lamp string and a blue-light LED lamp string. The high-frequency suppression magnetic bead L can effectively filter high-frequency AC clutters in a DC source to make power signal output more smooth; a CRC pi type filter circuit can further reduce AC pulsation ripple coefficients to remove AC clutters; and the gating of one selection can be realized by the single-pole double-throw switch, so that an LED light-emitting module group can emit blue light or red light, and the color rending adjustment can be realized. |
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