LED control signal correction method and LED integrated driving circuit
A technology that integrates driving and control signals, which is applied in the layout of electric lamp circuits, electric light sources, lighting devices, etc., and can solve the problems of complex LED integrated driving circuits, inability to set reference signals flexibly, and affecting the use range of LED integrated driving circuits.
Active Publication Date: 2014-10-15
GUANGDONG VTRON TECH CO LTD
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Problems solved by technology
[0004] However, such a method requires complex circuits in the LED integrated drive circuit to adjust the width of the reference signal to a fixed value, making the LED integrated drive circuit more complicated.
At the same time, the LED integrated drive circuit is a hardware circuit, which can only adjust the width of the reference signal to a specific value, which makes the LED integrated drive circuit unable to flexibly set the width of the reference signal, so it can only correct the specific LED control signal. , affecting the scope of use of LED integrated drive circuits
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[0015] An embodiment of the present invention provides a method for correcting an LED control signal, which is used to simplify the LED integrated drive circuit and expand the application range of the LED integrated circuit. Embodiments of the present invention also provide related LED integrated drive circuits and LED integrated circuit systems, which will be described respectively below.
[0016] For the basic flow of the LED control signal correction method provided by the embodiment of the present invention, please refer to figure 1 ,mainly includes:
[0017] 101. The LED integrated drive circuit receives the width control signal;
[0018] The LED integrated drive circuit receives the width control signal. In particular, the LED integrated driving circuit may include a signal receiving port through which the LED integrated driving circuit receives the width control signal. Wherein, the width control signal is used to instruct the LED integrated driving circuit to correc...
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An embodiment of the invention discloses an LED control signal correction method which is used for simplifying an LED integrated driving circuit and expanding the use range of an LED integrated circuit. The method comprises the following steps: the LED integrated driving circuit receives width control signals, the width control signals are used for indicating the LED integrated driving circuit to correct the pulse width of LED control signals, the LED control signals are used for indicating the LED integrated driving circuit to drive at least one LED; the LED integrated driving circuit receives the LED control signals; and the LED integrated driving circuit corrects the pulse width of the LED control signals according to the width control signals. An embodiment of the invention further provides the related LED integrated driving circuit and an LED integrated circuit system.
Description
technical field [0001] The invention relates to the field of optoelectronics, in particular to an LED control signal correction method and an LED integrated drive circuit. Background technique [0002] With the development of science and technology, light emitting diodes (LED, Light Emitting Diode) have been more and more widely used. Due to the advantages of high efficiency, long life, and easy control, LED has become one of the most attention-grabbing light sources for lighting, indication or display. In practical applications, it is often necessary to connect multiple LEDs in series through the LED integrated drive circuit, and the outside world inputs the LED control signal to the first-level LED integrated drive circuit, and the LED control signal is transmitted to each level of the LED integrated drive circuit. in the drive circuit. However, the LED control signal often suffers from signal delay, attenuation or distortion due to reasons such as long transmission dist...
Claims
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IPC IPC(8): H05B37/02G09G3/32
Inventor 陈和平许景翔
Owner GUANGDONG VTRON TECH CO LTD