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This article is based on the Linux 2.6.35.11 kernel of the mstar801 platform. 1. What are the methods for Linux to switch from user mode to kernel mode?     There are two general types: active and ...[Details]

Jiangsu Nanjing Lishui District Power Supply Company The construction of "three types and two networks" is an important strategic measure to adapt to the new trend of the integrated developmen...[Details]

From the perspective of application areas, lighting covers different categories such as residential lighting, industrial lighting, street lighting, and restaurant, retail and service lighting. From t...[Details]

With the improvement of modern living standards and the enhancement of health awareness, consumers have higher and higher requirements for home life. Keeping homes, offices and daily equipment and ut...[Details]

This solution first uses solar power to design a multifunctional solar mobile power box in combination with people's daily needs, and then uses Multisim simulation software to simulate and test the v...[Details]

We know that in a switching power supply, the switching power supply transformer is the largest magnetic induction device. The flyback switching power supply transformer converts the current flow...[Details]

The introduction of the standard library string in C++ makes string processing easier, but it also leads to a new problem, and some string processing problems in C language also come along. There   ...[Details]

Illuminance is the surface density of the luminous flux received on the illuminated plane. An illuminance meter is an instrument used to measure the illuminance on the illuminated ...[Details]

Recently, Xineng completed a Pre-A round of financing of nearly 10 million US dollars, invested by Fengwu Capital. It is reported that the funds from this round of financing of Xieneng will be mainl...[Details]

The advent of frequency converters and advanced motor control methods have made three-phase brushless motors (AC induction motors or permanent magnet synchronous motors) a huge success in speed contro...[Details]

1. How to calculate the delay time of the microcontroller delay program? Answer: If the loop is implemented by loop statements, it cannot be calculated, but the specific time can be seen through soft...[Details]

introduction Group delay is an important indicator for describing the phase-frequency characteristics of a transmission system. Its measurement methods can be roughly divided into tw...[Details]

With the continuous innovation and rapid development of the lighting industry, coupled with the increasing importance of energy saving and environmental protection, high brightness (HB) ...[Details]

　　Currently, the more popular low-cost, ultra-small space-consuming design solutions basically adopt the PSR primary-side feedback flyback type. The primary-side feedback voltage regulation eliminate...[Details]

1 Introduction A phase-locked loop (PLL) is a closed-loop automatic control system that can track the phase of an input signal. It has been widely used in various fields of radio technology. In...[Details]