[b]2-1-1-9. Hysteresis loop measurement of switching power supply transformer core[/b] Modern electronic equipment has higher and higher requirements for the working efficiency, volume and safety of p...
修改Windows CE 配置会修改Windows CE 配置会修改Windows CE 配置会修改Windows CE 配置会修改Windows CE 配置会执行安装 VS2005 WINCE6.0 平台 配置Windows CE 配置会执行Windows CE 配置会执行Windows CE 配置会执行Windows CE 配置会执行Windows CE 配置会执行Windows CE 配置会...
I bought a membership and watched Director Lu’s movie "You Are My Life" which was released last year. I fast-forwarded the movie several times and finished it. I was very disappointed.
Compared with t...
I have made a startup program. When booting, I need to access a file which is several MB in size. I am considering putting it on the SD Card, but currently the SD Card driver is loaded only after the ...
Recently, there was a small case, a small USB keyboard. When selecting, I found that the Qinhengwei CH549L-one chip can complete the functions of USB HID + touch keyboard. I first made a small board t...
[align=left][font=黑体][size=12pt]This is only for friends in the electronics industry who want to learn [/size][/font]Protel 99 /PADS Layout[font=黑体][size=12pt] to draw PCB boards. Please read it patie...
Emergency hand-held lamps powered by 6V maintenance-free batteries are widely used in rural areas. The charger used is a transformer step-down and single diode half-wave rectifier, and the charging...[Details]
Battery life is critical for portable applications. For applications such as smoke detectors, security devices, and thermostats, factory-installed batteries need to last for more than 10 years. The...[Details]
With the rapid development of urban economy, elevators are increasingly used as a vertical transportation tool. However, elevator fault detection and maintenance, especially the role of elevator remot...[Details]
Editor's note: In order to help technicians or engineers who have knowledge of PIC microcontroller assembly language quickly master the method of using C language to program PIC microcontrollers, t...[Details]
1. Overview
The Virtual CAN Interface (VCI) function library is an application program interface specifically provided for the use of ZLGCAN devices on PCs. The functions in the library ar...[Details]
1. Introduction to CIF Board
Fieldbus integration based on PC system
Whether it is a master or a slave, fieldbus has won unanimous praise in the field of PC-based automation. For more...[Details]
1. Project Introduction
Shandong Dezhou Xingtai Paper Co., Ltd. is a newly built high-end paperboard production enterprise with domestic leading level established by Shandong Zhaodongfang Pape...[Details]
LED is the abbreviation of light emitting diode, which is an electric light source made of semiconductor technology. The core part of LED is a chip composed of P-type semiconductor and N-type semi...[Details]
The concept of state machine
State machine is an important concept in software programming. More important than this concept is its flexible application. In a clear and efficient program, ther...[Details]
Printed circuit boards ( PCBs
)
are used in most electrical products
. If a PCB has low
insulation resistance
(IR), the performance of the circuits on the PCB will be greatly reduced...[Details]
It is well known to automotive suppliers that automakers are demanding more from their supply base. For connector suppliers, this means stricter requirements for product performance, stability and ...[Details]
The era of mobile access to the Internet has arrived, and it will rapidly change the business and infrastructure needs of mobile operators under a whole new trend of requirements. We need 4G LTE to...[Details]
With the rapid development of cities and the improvement of citizens' living standards, the number of various vehicles in cities is growing, and the demand for parking spaces in major commercial an...[Details]
0 Introduction
Ultrasonic waves
are mechanical waves with a frequency of more than 20KHz, and the propagation speed in the air is about 340 m/s (at 20°C). Ultrasonic waves can be gene...[Details]
Electric bicycles have long been a means of transportation for lower-income groups due to their affordability. The largest concentrated expense in the use of electric vehicles is the cost of replac...[Details]