Patent ID: 11930578
Assignee: SEMISILICON TECHNOLOGY CORP.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A power line carrying signal pixel control light emitting diode system applied to an alternating-current power, the power line carrying signal pixel control light emitting diode system comprising:
a micro-control circuit;
an alternating-current power detector electrically connected to the micro-control circuit; and
a plurality of light emitting diode lamps electrically connected to the micro-control circuit and the alternating-current power detector, and receiving the alternating-current power as a working power,
wherein the micro-control circuit comprises:
a first switch electrically connected to the light emitting diode lamps; and
a micro-control module electrically connected to the alternating-current power detector and the first switch,
wherein when the light emitting diode lamps are required to be controlled to light, the micro-control module detects a voltage status of the alternating-current power through the alternating-current power detector; the micro-control module continuously switches a conduction status of the first switch within a half-wave cycle along a voltage change of the alternating-current power to change a voltage transmitted to the light emitting diode lamps to generate a plurality of lighting control signals; the light emitting diode lamps are configured to receive the lighting control signals and light based on the lighting control signals,
wherein the micro-control module comprises:
a micro-controller electrically connected to the first switch;
a first clamping diode electrically connected to the micro-controller;
a second clamping diode electrically connected to the micro-controller and the first clamping diode; and
a resistor electrically connected to the micro-controller, the first clamping diode and the second clamping diode,
wherein the first clamping diode and the second clamping diode clamp the alternating-current power to obtain a first square wave signal and transmit the first square wave signal to the micro-controller, so that the micro-controller determines and detects the voltage status of the alternating-current power, and
wherein the micro-control circuit further comprises:
a micro-controller working voltage source electrically connected to the micro-controller and the first clamping diode.