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The annual Weiqi League has kicked off again, and China's top chess players have gathered together again to launch a new round of intellectual challenges. This year marks the third year that Hua...[Details]
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Speaking of Samsung, I think everyone will first think of mobile phones, but can you believe that Samsung has also begun to enter the automobile industry? Don’t believe it, let’s take a look! Recen...[Details]
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1. Introduction
Electric bicycles are favored by many users because of their pollution-free, noise-free, light and beautiful features. However, their limitations are also exposed in use, such...[Details]
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According to the latest data report released by Counterpoint Research, in the third quarter of 2019, the overall profit of global mobile phones fell by 11% year-on-year to US$12 billion, but Apple st...[Details]
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2 Basic principles of measurement
Figure 3 shows a principle block diagram of a network analyzer. When measuring an inverted-F antenna, the instrument first sends a frequency sweep signal and s...[Details]
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Detailed production process: http://www.51hei.com/bbs/dpj-25725-1.html
Here is the source code:
#include
//#include
#define ONE_CYCLE_STEP 255
#...[Details]
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1 Introduction
With the development of modern society, high-power switching power supplies are being used more and more widely. In the monocrystalline silicon industry, a single high-power switchin...[Details]
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The cable loop bridge balancing method , referred to as the bridge method, is a method that uses the linear relationship between the length and resistance of the faulty cable to change the DC bridge ...[Details]
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3.4 Software Functional Modules
The video call function module and the middleware software are partially integrated. The middleware is responsible for the interface with the upper-layer user a...[Details]
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According to past practice, Samsung will release a new S series phone at the beginning of each year. Recently, there is news that Samsung will release a new S series product in January next year. The...[Details]
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Automatic control circuit for star-delta starting of electric motor
Working principle: Close the power switch QK, press the start button SB1, contactors KM2 and KM1 are energized at the ...[Details]
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Smart cars, which rely heavily on the Internet, are becoming the next high-risk area for cybersecurity. When computers first entered thousands of households in my country, many computer security ex...[Details]
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introduction
Monolithic
switching power
supply integrated circuits have the characteristics of high integration, high cost performance, simplest peripheral circuits, and optimal perfo...[Details]
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1. The concept of low voltage reactive power compensation
Low-voltage reactive power compensation refers to the installation of compensation devices in the low-voltage 400 (380) volt n...[Details]
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Preface
Since the issuance of 5G licenses in 2019, after five years of development, my country's 5G has achieved remarkable results in infrastructure construction, user scale, innova...[Details]
Real-time operating system RTOS
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