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How to judge whether the LED is broken inside
Speaking of LED digital tube, I think everyone should be familiar with it. It is an electronic device that can display numbers and other information. Display numbers are often used in modeling, and the method is simple. Many feet feel bad and it is not convenient to control them directly with your hands. There are also professional decoders, but the number of pairs has increased. Today, let's talk about how to use nixie tube. Look at the internal schematic first. It can be seen from the following two figures that the inside of the nixie tube is composed of many light emitting diodes (LEDs). Because leds have positive and negative electrodes, nixie tubes can be divided into two types, one is a common cathode, the other is a common anode. The so-called common cathode refers to connecting the negative electrodes of all light-emitting diodes together, and the common anode refers to connecting the positive electrodes of all light-emitting diodes together.
What are the characteristics of LED dot matrix display
LED dot matrix display screen is composed of many semiconductor LED pixels, which are uniformly arranged. Different color LED pixels are made of different materials Red, green and yellow are commonly used. What are the main product features of LED dot matrix display?
The design of LED digital tube adopts scanning display controller dynamically
Experimental tasks and principles. 1.1 Task indicators By using the scanning dynamic display of LED digital tubes, the delay between the digital tubes is well controlled, and the continuous counting of data is realized according to the visual principle. 2. Functional requirements. (1) It can dynamically scan and display data. 1.3 Explain the principles. Schematic Diagram of LED Digital Tube Display 1、 Display principle of LED digital tube. When using a common cathode, invert the LED seven segment digital tube to ground it, and connect the LED pin to the high level to make the LED light up when in use. The second is the principle of dynamic scanning. Dynamic scanning needs to input data at the same time to light up several different nixie tubes, but it needs several cycles to complete, that is, divide the time into several cycles. When the frequency reaches a certain value (such as 1 khz), the delay can get better results, and the dynamic display can be achieved by using visual delay. Design ideas, methods and planning; 2.1 Functional requirements of the analysis system. When the clock pulse is continuous, the counter starts counting, and then the decoder generates the chip selection signal of the data selector to control the LED display. Select a channel of BC code data, and control the digital tube a-g pin and common cathode through the display decoder, so that each tube can only work once. Therefore, after entering the clk cycle counting, higher frequencies can be displayed in turn. FPGA module programming. 3.1 Failure analysis and handling. The advantage of this method is that it can not only reduce the number of needles, improve the use efficiency, but also has greater practicality and operability. However, the difficulty lies in that under different environments and requirements, the frequency setting needs to be carefully selected for debugging.
Color LED display can enhance reality technology
The progress of LED display technology has never stopped. Whether it is the integration of innovative technology or various creative shapes, the world has been surprised.
Type and common pole time of LED digital tube
When detecting the segment corresponding to each pin of the multi digit LED nixie tube, the multimeter selects the R * 10K gear. For the common anode nixie tube, the black lead is connected to the common electrode of a certain position, and the red lead is connected to its pin. If the nixie tube returns a weak bright light, such as the bright light in segment a, it indicates that the pin connected to the red lead is connected to the negative electrode of segment a LED. For the common cathode nixie tube, the red lead is connected to the common electrode of a position, and the black lead is connected to other pins, If a weak light is found on a segment of the nixie tube, the pin of the black probe is connected to the positive pole of the LED segment.
How does the nixie tube light up to display the answers
The digital tube is arranged by multilayer LEDs, and the display principle of LED is no different from that of traditional lighting. The general digital tube includes 7-level LED, and 8-level LED is just one of them. Other LED levels are basically the same, as shown in the figure below.
What are the reasons for the unstable use of nixie tube and how to find solutions
Whether the nixie tube can work normally is generally due to a problem with a program or a damaged component, which leads to unstable operation Generally, there is a potential safety hazard. What are the reasons for unstable work? What is the specific reason?
Which is better to choose nixie tube? Is the quality guaranteed?
Shaoxing Guangcai Display Technology Co.,Ltd has imported world-class ASM equipment and Japan MUSASHI dispenser ,and introduced advanced semiconductor production technology and management from Taiwan.Our company is specializing in producing 0.1 to 0.8inches,1 to 4digits SMD 7segment LED display ,Alphanumeric LED display and custom LED display.Our Clients include Samsung, Turkey Semtech,PHILIPS,Huawei,BOE and other well-known domestic and foreign companies. Our company owns several patents for SMD 7 segment LED displays, national innovation fund projects ,and the national SMD LED Display industrialization base and other honors.