1. Overview of high voltage and high power frequency conversion technologyAfter nearly 20 years of rapid development and application, AC asynchronous motor variable frequency speed regulation techno...
Does anyone know what the structure of the short circuit and open circuit used in RF testing is? Microstrip short circuit and open circuit? ? It seems not, the bandwidth of open circuit and short circ...
I have been using Altium Designer, and also used ORCAD for a while before. I usually use PROTEUS for simulation. Now my boss wants to buy the genuine version. I contacted Altium but the quote is too e...
The file downloaded from TI official website is a compressed package of CCS5.1 for linux installation file: CCS5.3.0.00090_linux.tar.gz Step 1: Unzip Step 2: Open Application -> Accessories -> Termina...
Why can't the statement hr = CLSIDFromProgID( g_szADOCE31ConnProgID, &tClsid ); be executed correctly when the program creates a connection (). I only changed ADOCE30.h to ADOCE31.h in the program. In...
I bought an STM32 board on Taobao some time ago. When I received it, I found that the serial port could not burn the program. I sent it back to the seller and he said to use JTAG to fix some "protecti...
Remote keyless entry (RKE) systems have become popular with users, with more than 80% of new cars in North America and more than 70% in Europe equipped with RKE systems. In addition to the obvious ...[Details]
In public places such as schools, government agencies, factories and mines, as well as public corridors in residential areas, the phenomenon of long-burning lights is very common, which causes a h...[Details]
When choosing a laptop battery, you should consider several factors, such as power, appearance, and quality.
Regarding power, we often see that a manufacturer uses values such as the number ...[Details]
1. Background:
The instrument system parameter detection and control of the chemical production workshop of Tangshan Coal Gas Coking Plant are all analog instruments, some of which are eve...[Details]
At very low temperatures, certain metals and alloys lose their resistance to electric
current
and become
superconductors
. Two parameters that are often measured are the transition ...[Details]
The TPS92210 is a single-stage LED lighting pulse width modulation (PWM) controller. The TRIAC dimmable solution not only regulates the LED current, but also achieves a power factor close to 1. The...[Details]
Since the late 1990s, with the demand for higher system efficiency and lower power consumption, the technological update of telecommunications and data communication equipment has promoted the deve...[Details]
1. Overview
At present, an information revolution is in the ascendant around the world, led by microelectronics, computers and communication technologies, and centered on information technolog...[Details]
1 Introduction
With the improvement of people's quality of life, lamps are no longer just basic indoor lighting tools, but also a kind of practical art for architectural decoration. When ther...[Details]
Introduction
In industrial control, speed measurement is often required. Generally, a contact tachometer is used. This tachometer must be placed against the center of the shaft to measure. It...[Details]
0 Introduction
In order to improve the automation control of shortwave transmitters, so that they can automatically process from far to near, the technicians here use the ICS system to complete the ...[Details]
Overview
By transmitting ultrasonic energy into the human body and receiving and processing the returning reflected signals, phased array ultrasound systems can generate images of organs and s...[Details]
Car lights, whether headlights, fog lights or tail lights, play an important role in driving safety. However, the material of the car lights determines that the probability of damage in a collision...[Details]
The emergence and development of street lamps are inseparable from the prosperity and progress of cities, which makes street lamps useful. Conversely, street lamps also make the night of the city n...[Details]
Rated capacity refers to the maximum output power of the UPS (the product of voltage V and current A).
Usually, the UPS power supplies sold on the market are marked with "W" (watt) for smaller...[Details]