The importance of electromagnetic compatibility needs no further explanation. This book is a translation of the classic "Printed Circuit Board Design Techniques for EMC Compliance". It is in tradition...
For example, if a display meter receives a 4-20MA current signal from a transmitter, can several meters be connected in series for display?
Personally, I think that if the instrument is current driven...
I applied for MM's F103 development board and made a J1939 module. I used the CAN pins of PA11/PA12. The relevant pin configuration in the official SDK is shown in the figurePlease shield the breakpoi...
Porting the graphics library to drive TFT LCD (ILI9325) under 9B96
It is displayed now, but the displayed controls seem to be out of range?
Modified
#if ! defined(PORTRAIT)! defined(PORTRAIT_FLIP)\ ! ...
[i=s]This post was last edited by jishuaihu on 2015-1-14 22:14[/i] This is the first time I use Altium designer to draw a more complex board. The schematic is designed in a hierarchical way. Now I can...
CCTV invites experts to answer questions about Chang'e "Chang'e-1" is about to be launched. What do you want to know about "Chang'e-1"? Do you have any questions about my country's lunar exploration p...
1 Introduction
A wide variety of communication cables and control cables are widely used in various instruments and control equipment. Whether the cable is well-conducted and
whether
th...[Details]
Today, with the increasing integration of functions, mobile phones can also be used as portable media players (PMP), digital cameras, handheld computers (PDAs), and even global positioning systems ...[Details]
introduction
Throughout the history of automotive lighting, power has always played an important role. Initially, cars only needed headlights to see the road in the dark. Later, other light so...[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]
Product series: PB-B-RS232/485 interface (hereinafter sometimes referred to as "interface") is a product in the PROFIBUS bus bridge series.
The main purpose of the bridge series ...[Details]
MediaTek (2454) announced the acquisition of F-MStar (3697) and attracted the attention of IC design industry. This morning, Gartner Semiconductor Industry Research Director Hong Cenwei analyzed ...[Details]
I've been studying dot matrix recently. It looks simple, but it takes a while to master it completely! The 8*8 dot matrix hardware circuit I'm making now is like this. The row is driven by 74HC138 + t...[Details]
Capacitors
are basic components in various electronic devices and are widely used for bypassing, coupling,
filtering
, tuning, etc. in electronic circuits. However, to use capacitors,...[Details]
Motors are important products that convert electrical energy into mechanical energy to achieve automation, and they are widely used in industrial control, medical electronics, white a...[Details]
According to the Industrial Technology Research Institute of Taiwan, due to factors such as the oil crisis and global warming, the issues of energy conservation and environmental protection have at...[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]
Introduction
X1226 has the functions of clock and calendar. The clock relies on hour, minute and second registers to track, and the calendar relies on date, week, month and year registers to tr...[Details]
1 Introduction
Ultrasound refers to elastic vibration with a frequency higher than the audible frequency limit (i.e., in the frequency band above 20 kHz). The propagation process of this vib...[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]
A few days ago, I bought an 8LED flashlight in the market (the flashlight uses No. 5 batteries). Because I had other things to do, I didn't pay attention when purchasing it. When I got home and use...[Details]