Driving device, lamp and driving method

Abstract

The invention is applicable to the field of LED lighting, and provides a driving device, a lamp and a driving method. The driving device comprises a regulating and controlling module and a plurality of constant-current output modules, wherein the regulating and controlling module is used for receiving electric signals, used for adjusting driving signals output to the constant-current output modules according to opening frequency that opening actions are detected from the electric signals every time, and used for selectively powering on one or more constant-current output modules according to the driving signals; the opening frequency is the frequency that the opening actions are already detected from the electric signals; the constant-current output modules are used for outputting constant direct current to the LED lamp when being selectively powered on by the driving signals. Thereof, when the opening action is executed each time, the regulating and controlling module reselects that constant direct current is output to the LED lamp from which constant-current output modules, so that the magnitude of the direct current flowing into the LED lamp is changed, and the brightness of the LED is adjusted.

Description

technical field [0001] The invention belongs to the field of LED lighting, and in particular relates to a driving device, a lamp and a driving method. Background technique [0002] In recent years, lamps and lanterns can be used not only as lighting equipment, but also as decoration. With the improvement of people's quality of life, when using lamps in decoration, it is required that the brightness of the lamps can be adjusted according to the needs of the scene, or the color of the lamps can be set according to the needs of users. [0003] At present, there are many ways to adjust the brightness or color of lamps and lanterns, such as PWM dimming, analog linear dimming, thyristor dimming, etc.; but these dimming methods require a dedicated dimming module to achieve, which is different from the original Some lighting systems have poor compatibility, limited application occasions, and high cost. Contents of the invention [0004] In view of the problems described in the b...

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Problems solved by technology

[0003] At present, there are many ways to adjust the brightness or color of lamps and lanterns, such as PWM dimming, analog linear dimming, thyristor dimming, etc.; but these dimming methods require a dedicated dimming module to achieve, which is different from the original Some lighting systems have poor compatibility, large application limitations, and high costs

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