1. Video intercom without video cable. How to transmit video without video cable? Manufacturers use multi-core shielded cable and use one of the cores to replace the traditional video cable. We know t...
The maximum output current of 78l05 is 150mA, and the power consumption is 0.75W. The input can be greater than 7v and less than 30v, but the input voltage should not be too large to avoid excessive p...
[i=s]This post was last edited by liutogo on 2015-6-1 00:15[/i] I applied successfully again, but Ti adjusted the number of samples I applied for. But I am still very grateful to Ti....
In Keil, what is the difference between const char code tab1[]; const char far tab2[]; and these two arrays? When should I add code and when should I add far?...
[i=s] This post was last edited by Yitanqingshui on 2014-8-14 21:43 [/i] 1. First select the company in the FPGA power supply in FPGA/uP, and then select the corresponding chip2. The power supply poin...
Shenzhen Jiachuangda Technology Co., Ltd. Changsha Branch is the "computer room maintenance master" in the domestic industry. Jiachuangda's main business includes computer room power environment centr...
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]
The Portable Digital Data Acquisition System (PDDAS) uses LabVIEW Real-Time and PXI to control the wind tunnel test and record air pressure data from 128 different channels.
"The LabVIEW Real-...[Details]
My colleague and I spent the day chatting in the hotel bar. We had met with several customers. We were both wondering how come these engineers we were meeting knew almost nothing about analog techn...[Details]
In the analysis of electronic circuits, static analysis (also known as DC analysis) is the basis of circuit analysis. However, it is well known that electronic components are nonlinear, so the anal...[Details]
RS-422 and RS-485 are both serial data interface standards, which were developed and published by the Electronic Industries Association (EIA). RS-422 defines a balanced communication interface with a ...[Details]
Describe how to meet the challenges of complexity with a modern wiring design toolset. Option codes and expressions can simulate the variables of an automotive project. A full-featured tool suite c...[Details]
1. Tips for charging UPS for the first time
After purchasing a new UPS, plug the UPS into the 220V mains power grid and charge it for at least 12 hours to ensure that the battery is fully char...[Details]
This article introduces a high-reliability, high-power automatic water supply device made with 89C2051 single-chip microcomputer, which has phase loss detection, over-temperature detection, over-cu...[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
Lijia'an Yellow River Diversion Culvert is a large gravity diversion gate in the lower reaches of the Yellow River. The Yellow River Diversion Culvert is located in Lijia'an Vi...[Details]
At present, more than 40 fieldbuses have been developed in the world, among which CAN bus is suitable for application in automobile inspection lines because of its unique features such as strong re...[Details]
A stepper motor is a motor that converts electrical pulse signals into linear or angular displacements. However, the control of stepper motors is usually developed in assembly language or C languag...[Details]
In some motion control systems with simple control or low cost requirements, stepper motors are often used as actuators. The biggest advantage of stepper motors in such applications is that they ca...[Details]
1 Principle and composition of micro-range radar
1.1 Ranging method
There are usually three methods for radar ranging: pulse ranging; frequency modulated continuous wave ranging; phase ...[Details]
The circuit has overcharge protection, over-discharge protection, over-current protection and short-circuit protection functions. Its working principle is analyzed as follows:
1 Normal state
...[Details]