Light emitting diode (LED) driving and control device and control method thereof

Abstract

The invention discloses an LED driving and control device and a control method thereof. The driving and control device is used for controlling and driving a light source consisting of an LED and comprises a light source, a switch detection and control module, a power supply device and a power supply switch, wherein the switch detection and control module is coupled with the light source, comprises a brightness / flashing control unit and an LED driving unit, and can control the light source according to switching information provided by the power supply device; the power supply device is used for outputting power to a light source and the switch detection and control module and providing different kinds of switching information to allow the LED driving unit in the switch detection and control unit to accept the control of a brightness / flashing control signal generated by the brightness / flashing control unit and output proper power to the light source; and the power supply switch, according to switching action input by a user, allows the power supply device to output corresponding switching information to the switch detection and control module, so that the user can switch the plurality of kinds of brightness or flashing states of the LED by simply switching the power supply switch.

Description

technical field [0001] The invention relates to an LED drive control device and its control method, in particular to an LED drive control device and its control method which can control and drive the brightness or flickering state of a light source composed of at least one light emitting diode. Background technique [0002] Since primitive people used fire to produce the first ray of light in ancient times, human beings are still pursuing light in order to resist the darkness of night. In addition to the gas lamp burned by fire, in October 1879, Edison invented a new way of using electricity. A method of producing light from energy, which in turn led to the birth of the mercury light bulb. With the advancement of science and technology, the invention of LED (Light Emitting Diode, light-emitting diode) lamps has made human life more convenient. At the same time, it can reduce the air pollution caused by many gas lamps and the heavy metal pollution caused by mercury bulbs. Co...

AI Technical Summary

Problems solved by technology

[0008] (1) Additional brightness or flickering state control circuits need to be added, which increases the cost. For indoor lighting, it is not suitable because of its high price

[0009] (2) Lacking the switch detection circuit of the present invention, it is impossible to operate the power supply according to the user's switch, but the drive circuit can actively change the brightness of the light source, so it is not convenient to use

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