At first, I used the query method to read the keystrokes, but because there was a delay() behind it, there was a high chance that the keystrokes could not be read in the delay. Later, I used interrupt...
The experience of the South African team in Group A tells us that even if the college entrance examination is held in your home, you may not be able to get into the first-tier line. The experience of ...
[i=s]This post was last edited by wenzheng on 2014-6-7 14:34[/i] There are 32 channels of blocking signal counting from infrared radiator tubes, the upper limit of the counting value is 100,000 or 1 m...
[i=s]This post was last edited by qwqwqw2088 on 2018-11-14 08:55[/i] [size=4] The magnetic components of a switching power supply generally refer to transformers and inductors. Transformers are widely...
Driver programming under Windows has a function NTKERNELAPI NTSTATUS IoGetDeviceObjectPointer( __in PUNICODE_STRING ObjectName, __in ACCESS_MASK DesiredAccess, __out PFILE_OBJECT *FileObject, __out PD...
As a wireless broadband metropolitan area network standard, WiMAX technology has greater advantages than previous 3.5GHz MMDS products in terms of non-line-of-sight transmission and spectrum utiliz...[Details]
At present, the traffic congestion in cities is quite serious. According to relevant news reports: In China, the traffic congestion has expanded from megacities such as Beijing, Shanghai, and Guang...[Details]
Among the uses of electrical energy, lighting accounts for a considerable proportion. Compared with the earlier ordinary incandescent lamps, the fluorescent lamps and energy-saving lamps we commonl...[Details]
Movpower is a portable power bank. It can charge most mobile phones and digital products, such as digital cameras, PDAs, and mobile phones such as Apple, iPod, Blackberry, Motorola, Samsung, Nokia,...[Details]
In the TV monitoring system, in order to complete the collection of information from various information points (video, audio, alarm signal) and the control of various front-end devices (PTZ, lens,...[Details]
1. Introduction
Industrial fieldbus technology is one of the technologies that has received the most attention in the automation industry in recent years, and it has brought a qualitative leap...[Details]
1. Self-test of lithium battery capacity
The nominal capacity of the CECT9898 OEM mobile phone lithium battery is 3800mAh, and its battery volume is comparable to the 1500mAh battery of ot...[Details]
Typically, buck regulators are designed for continuous mode operation, which simplifies output voltage calculations and system design. However, if the system is non-synchronous and required to oper...[Details]
1. Introduction
The novel bidirectional high-frequency link inverter has the advantages of bidirectional power flow, high-frequency electrical isolation, simple topology, and two-stage po...[Details]
White LED energy-saving lamps are now widely used in handheld devices (such as mobile phones) as backlights for color LCD screens and keyboard lights. Colored LED energy-saving lamps are good indic...[Details]
Automotive electronics design must provide more competitive cost advantages under the conditions of multiple design requirements such as performance, reliability, and time to market. This article w...[Details]
The switched reluctance power generation system consists of a doubly salient reluctance motor, a bidirectional power converter, a rotor position detector (or indirect position detector) and a contr...[Details]
Abstract: Fiber optic communication is the main communication mode of data communication system nowadays, and its performance directly affects the quality of data communication system. This paper u...[Details]
Lithium-ion batteries are an ideal power source due to their high operating voltage, small size, light weight, no memory effect, no pollution, low self-discharge, and long cycle life. In actual use, i...[Details]
The complexity of electronic systems in automotive devices is increasing year by year. Currently, the cost burden of electronic systems has exceeded 20% of the typical cost of a car, and it is expe...[Details]