Make PLC simulate the inverter acceleration and deceleration control. For example, set a data 300 in D200, start PLC, the memory value increases from 0 to 300, the time can be set by yourself, and the...
This is because the loss angle cotangent of seawater is very large, and the propagation loss of microwaves in it is very large. However, for low frequencies, the loss is much less, so if submarines us...
Process: I have a Maxtor 80G hard disk. I repartitioned it before reinstalling the operating system. After partitioning, I installed the operating system and could enter WINDOWS normally. After shutti...
[i=s]This post was last edited by paulhyde on 2014-9-15 03:36[/i]This post is specially designed for the National Electronic Circuit Design Competition in September this year, so that everyone can be ...
Yesterday I attended the M0 seminar in Xintang, which was held next to the EE company. Two boards and a book were distributed, so I’m going to show them off today. The book is in the company, so I won...
Hardware designers have begun to adopt FPGA technology in high-performance DSP designs because it can provide 10-100 times faster computing than PC-based or microcontroller-based solutions. Previou...[Details]
In recent years, the market for mobile/portable devices such as smartphones and laptops has continued to grow rapidly. While these products continue to integrate more new features to enhance the ...[Details]
1. Introduction
Light control circuit plays a vital role in urban street lamps or corridor lighting. With light control circuit, the lights can be automatically turned on and off according to ...[Details]
As cellular phones become more advanced, the power consumption of the system during operation and the power consumption during standby are also increasing. Therefore, the power management design of...[Details]
Vertical cavity surface emitting lasers (VCSELs) are gradually replacing traditional edge emitting lasers, especially in low bandwidth and short-distance communication systems where cost factors ar...[Details]
LED lamps and bulbs are now rapidly replacing incandescent, halogen and CFL (compact fluorescent lamp) light sources in many general lighting applications. Flyback DC/DC converters are the power su...[Details]
Investment in
the
medical device
industry has been on the rise in recent years. In the past two years, venture capital for medical devices has almost doubled, reaching $4 billion in 2007. Fr...[Details]
Recently, news came from the certification department that the photovoltaic grid-connected inverter of Samil New Energy Co., Ltd. (hereinafter referred to as "Samil New Energy") has once again obta...[Details]
At present, how various communication technologies will evolve after 3G is a focus of great concern in the industry. Especially for TD-SCDMA, whether it can achieve smooth evolution to the next gen...[Details]
1 Development of LED Film and Television Lighting
1.1 The significance of developing film and television lighting
Lighting power consumption accounts for a large proportion of the total p...[Details]
Leakage current is generated by parasitic resistance paths between the measurement circuit and a nearby voltage source. This current can significantly reduce the accuracy of low current measurement...[Details]
The future energy storage hotspot is not coal or iron ore, but lithium. This lightest metal in nature may be the heaviest resource in the future energy landscape. China launched an ambitious electr...[Details]
In order to prevent the lithium battery from being damaged by abnormal conditions such as overcharge, over discharge, and overcurrent, a lithium battery protection device is usually used to prevent...[Details]
Mobile phones, MP3s, tablet computers, laptops, digital cameras, handheld game consoles, navigation devices, etc., all these mobile devices are powered by mobile batteries, and the battery life is ...[Details]
With the popularity of digital appliances, rechargeable batteries can be seen everywhere in people's daily lives and have become one of the indispensable daily necessities.
This article gives ...[Details]