LED lighting controller, driver, driving method, lighting device, and display device
A technology of LED driver and light-emitting controller, applied in lighting devices, light sources, electric light sources, etc., can solve the problems of LED driver circuit size and power dissipation increase, and achieve the effect of reducing equipment size
Active Publication Date: 2016-09-21
IWATT INTEGRATED CIRCUITS TECHNOLOGY (TIANJIN) LIMITED
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Problems solved by technology
[0009] However, as the number of LED channels increases, both the circuit size and power dissipation of the adaptive switch-mode LED driver will increase dramatically
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[0029] Hereinafter, various exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be noted that these drawings and description relate to preferred embodiments as examples only. It should be noted that, from the ensuing description, alternative embodiments of the structures and methods disclosed herein are readily conceivable and may be employed without departing from the principles of the presently claimed invention.
[0030] It should be understood that these exemplary embodiments are given only to enable those skilled in the art to better understand and implement the present invention, but not to limit the scope of the present invention in any way.
[0031] Next, we will first refer to figure 2 The basic architecture of the LED driver according to one embodiment of the present invention will be described.
[0032] Such as figure 2 As shown, in one example, the LED driver can include: a power man...
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The invention provides an LED light-emitting controller, a driver, a drive method, illuminating equipment and display equipment. According to the implementation method, the LED light-emitting controller can comprise one or more output ends, a luminance controller and a signal conversion unit. Each output end can be operated in order to be connected with one LED channel regulator. The luminance controller can be operated in order to generate current level signals and current level output control signals in a digital form. The signal conversion unit can be operated in order to convert the current level signals in a digital form into current level signals in an analog form and output the current level signals in the analog form at one output end or one of the output ends based on the current level output control signals. According to the LED light-emitting controller, the equipment size and power consumption of the LED driver can be effectively reduced, so the LED light-emitting controller is especially suitable for applications requiring small equipment size and / or little power consumption.
Description
technical field [0001] Embodiments of the present invention relate to the technical field of light-emitting diode (LED) lighting, and more particularly relate to an LED lighting controller, an LED driver, an LED driving method, and a lighting device and a display device including the LED driver. Background technique [0002] LEDs have been widely used in a variety of electronic applications, such as architectural lighting, automotive head and tail lights, backlights for liquid crystal display devices, and flash lights. LEDs offer many significant advantages over conventional light sources such as incandescent and fluorescent lamps. These advantages include high efficiency, good directionality, high color stability, high reliability, long life, small size and environmental protection. [0003] environmental security. [0004] The LED itself is a current-driven device, so adjusting the current through the LED is one of the important control techniques. To drive a large arra...
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IPC IPC(8): H05B37/02
Inventor 宋振宇
Owner IWATT INTEGRATED CIRCUITS TECHNOLOGY (TIANJIN) LIMITED