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Let’s talk about the problem first: when the hair dryer is turned on to hot air, the power goes out after a while, but there is no problem when it is turned on to cold air. What is the reason?
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过去LED 业者为了获得充分的白光LED 光束,曾经开发大尺寸LED芯片 试图藉此方式达到预期目标。不过,实际上白光LED的施加电力持续超过1W以上时光束反而会下降,发光效率相对降低20～30%。换句话说,白光LED的亮度如果要比传统LED大数倍,消耗电力特性超越荧光灯的话,就必需克服下列四大课题：抑制温升、确保使用寿命、改善发光效率,以及发光特性均等化。
The solu...[Details]
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Abstract: As an important part of the power system, the service life and safety and reliability of batteries are the focus of users. Therefore, this paper introduces the software and hardware desig...[Details]
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Because the iPhone 12 adopts a new appearance design, many new problems have also arisen, including paint peeling. The iPhone 12 uses an aluminum metal frame, while the iPhone 12 Pro series uses a ...[Details]
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① Mechanical zero adjustment. Before turning on the power, adjust the mechanical zero position indicated by the meter. ② Switch on. Press the power switch, the light will come on, and the instrument ...[Details]
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The power supply is the power part of electronic equipment and is a very versatile electronic product. It has been widely used in various industries and daily life. Its quality greatly affects the ...[Details]
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As cars move from the fuel era to the smart era, smart cockpits are also reborn in the transformation, moving towards a smarter, larger, multi-screen, and more entertaining direction. The smart coc...[Details]
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In the past, car airbags were installed inside the car. TRW Automotive Safety Technologies is developing an external airbag that is installed on the side of the car. It uses cameras and radar ...[Details]
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The relationship between time and frequency
There is no conceptual difficulty in understanding what happens when a steady-state DC signal is applied to a voltmeter. However, if the signal has ...[Details]
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1. Introduction
With the advancement and development of technology in recent years, a new type of product has emerged in the power switching system - automatic transfer switching equipment (AT...[Details]
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1 Introduction
Today's automation control products are changing with each passing day, and there are various different ways to achieve the same function. For example, there are many ways...[Details]
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When you want to use a DC ammeter with a smaller limit to measure a larger DC current, you can use a parallel shunt to expand the range of the meter. The shunt is a resistor r1 with a small limit, wh...[Details]
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In order to achieve the best accuracy with the shortest latency for AI accelerators, especially in self-driving cars, TFLOP has become a key indicator for many so-called brain chips. However, some ex...[Details]
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Embedded systems usually have specific input devices. Input devices are used to implement data input and human-computer interaction. There are many types of input devices, and different devices rel...[Details]
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The single-to-double power supply conversion circuit principle provided by Electronics Enthusiasts . The figure shows the calculation of the output voltage ratio and precautions. Resistors and other ...[Details]
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