LED string light controller for carrying out control by utilizing DC carrier communication
A technology of LED light string and communication control, applied in the use of semiconductor lamps, electrical components, electroluminescent light sources, etc., can solve the problems of long communication time, redundant connection lines, etc., and achieve the effect of small restrictions
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[0020] see Figure 1 ~ Figure 4 , the present invention is an LED light string controller controlled by DC carrier communication, which is characterized in that it includes an AC / DC converter 2, a voltage stabilizing circuit 11, a microprocessor 8 (MCU), a single modulation circuit 10, and a voltage conversion control Module 3, the output end of the AC / DC converter 2 is connected with the input end of the voltage conversion control module 3 through the voltage stabilizing circuit 11; The control terminal of the module 3 is connected, the output terminal of the single modulation circuit 10 is connected to the output terminal of the voltage conversion control module 3, and is connected to the LED light string A as the output terminal 4 of the LED light string. The model of the microprocessor 8 in this embodiment is stm8s003f3p of STMicroelectronics 8s series.
[0021] The single modulation circuit 10 includes an input resistor R3, a preamplifier Q1 and an electronic switch Q2, ...
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