Music signal controlled PWM dimming and color modulating LED lamp

Abstract

The invention relates to a music signal controlled PWM dimming and color modulating LED lamp, which comprises a music signal acquisition module, a signal processing module, a mobile phone APP module, a bluetooth communication module, a digital-to-analog converter, a PWM control module and an LED lamp, and is characterized in that the LED lamp is an RGB LED lamp, the mobile phone APP module is wirelessly connected with the bluetooth communication module, the bluetooth communication module is connected with the digital-to-analog converter, the digital-to-analog converter is connected with the PWM control module, the PWM control module is connected with the LED lamp, and the PWM control module adjusts the color and brightness of the LED lamp through changing the duty ratio of the LED lamp. The corresponding duty ratio of required LED light can be directly calculated in an inverted way through inputting a corresponding parameter according to an algorithm chip and circuit, and dynamic adjustment is performed on the color and illumination under the condition of adjusting the duty ratio. PWM dimming has the advantages that the dimming is more accurate, the color changes faster, the dimming color is brighter, and the dimming mode has more color changes than the traditional mode. Meanwhile, the lamp is low in heat generation, and the efficiency is higher.

Description

Technical field [0001] The invention relates to the field of household appliances, and in particular to a PWM dimming and color-modulating LED lamp controlled by a music signal. Background technique [0002] Smart home appliances are home appliances formed by introducing microprocessors, sensor technology, and network communication technology into home appliances. They can automatically perceive the status of the residential space, the status of the home appliances, and the service status of the home appliances, and can automatically control and receive residential users in the house or Remote control commands; at the same time, as a component of smart home, smart home appliances can be interconnected with other home appliances, homes, and facilities in the house to form a system to realize smart home functions, and this forms one of the most specific applications in the Internet of Things. With the continuous development of human application needs and the intelligentization of h...

AI Technical Summary

Problems solved by technology

[0004] At present, people control the lamps by touching the switches on the lamps with their hands, which is very inconvenient to use. If people can control the lamps with the help of smart phones in their hands, it will bring great convenience to life.

Images