Abstract: The present invention discloses lamp bead chipsets and colored lamp devices. The colored lamp device includes a power off signal controller and several lamp bead chipsets connected in series and/or in parallel. The power off signal controller generates power supply signals having alternating high and low levels and different high level widths, and load the power supply signals onto a power cord and a ground wire. The lamp bead chipset controls the display state of each LED in an LED lamp set according to the different high level widths and output on the power cord and the ground wire. Several power supply high level widths on the power cord and the ground wire are adjusted to generate codes, so as to achieve different color change effects. The lamp bead chipsets and colored lamp devices described herein reduce the complexity of traces and the wire costs.

Abstract: The present invention discloses lamp bead chipsets and colored lamp devices. The colored lamp device includes a power off signal controller and several lamp bead chipsets connected in series and/or in parallel. The power off signal controller generates power supply signals having alternating high and low levels and different high level widths, and load the power supply signals onto a power cord and a ground wire. The lamp bead chipset controls the display state of each LED in an LED lamp set according to the different high level widths and output on the power cord and the ground wire. Several power supply high level widths on the power cord and the ground wire are adjusted to generate codes, so as to achieve different color change effects. The lamp bead chipsets and colored lamp devices described herein reduce the complexity of traces and the wire costs.