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Organic light-emitting diodes (OLEDs) are the most eye-catching and fastest-growing direction in the currently very active field of organic optoelectronics research. In October 2008, my country's f...[Details]
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The multimeter is a basic instrument we use to measure static parameters. Thanks to its multiple measurement functions such as AC and DC voltage, current, resistance, capacitance, diode voltage drop,...[Details]
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Regulators usually block mergers when competing companies suddenly want to merge, but they have recently become more stringent about vertical mergers between companies that are not competing with eac...[Details]
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1. Overview
In this application case, the user has PLCs distributed all over the world, and the user wants to access and modify the working status of the PLC through any computer that can conn...[Details]
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1. What is an interrupt? An interrupt is when the CPU is running a program normally and, due to internal/external events or events pre-arranged by the program, it interrupts the running program and s...[Details]
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According to foreign media reports, researchers at the U.S. Department of Energy's National Renewable Energy Laboratory (NREL) have made a breakthrough in energy-saving phototransistors. The devices ...[Details]
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The working principle of biometrics is to use biometric devices to sample biological features, extract their unique features and convert them into digital codes, and further form these codes into f...[Details]
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Organic Light Emitting Diode (OLED) Display
Organic light-emitting diode (OLED) displays use a novel flat panel technology. It forms a pn junction with an organic material coating, which emits light ...[Details]
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0 Preface
Capacitive sensor is a device that converts the change of the measured value into the change of capacitance. Capacitive sensor has the advantages of simple structure, high resolution, r...[Details]
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0X00 Recently, I need to use segment LCD. My colleague came back with the proof and was surprised to find that it could not be driven. After searching on Google, I found that the hardware connectio...[Details]
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The good performance of the terminal market has laid a good start for the 2024 power battery industry chain . Transitioning from 2023 to 2024, overcoming the difficult shadow of overcapacity and e...[Details]
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On October 22, Nokia Mobile's official Weibo announced that the new Nokia 225 4G payment version is officially on the market. The official price is 349 yuan. Now you can enjoy a 40 yuan discount...[Details]
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I believe that for power engineers, the contribution of oscilloscopes is irreplaceable. Once there is a problem with the product, it is necessary to capture the waveform, timing, and test accurate va...[Details]
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introduction With the increasingly serious air pollution and energy crisis, the development of traditional means of transportation - automobiles faces a series of challenges. Traditional internal co...[Details]
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Switching power supplies generally use pulse width modulation (PWM) technology, which is characterized by high frequency, high efficiency, high power density and high reliability. However, since its ...[Details]
Test/Measurement
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