Everyone can have the opportunity to enjoy the fun of 32-bit! Chongqing Youyite Electronics Co., Ltd.'s latest EJ-STM32 is a DEMO board based on STMicroelectronics (ST) STM32 series high-performance 3...
I recently used FPGA to make an SDRAM controller. It was originally connected to one SDRAM, and it has been debugged OK. Now I need to expand the capacity. I don't know how to connect two SDRAMs? The ...
[i=s]This post was last edited by elvike on 2016-12-25 22:30[/i] [align=left][font=宋体]A word of caution before the beginning: I haven't posted anything for a long time. I went back and looked through ...
I have the impression that the principle used by Zener diodes and TVS tubes is that the voltage does not change much in a large current change range. Therefore, a general Zener diode is connected in s...
I have some ferrite beads, MMZ2012 series, 60 ohm, 1000mA maximum current, I want to use it for power supply, but the data sheet of this ferrite bead says that this series is for signal line, can I us...
Recently, I ran an interrupt program on the s3c44b0x board, and it always failed. After considering all the situations, I think the ISR_STARTADDRESS value is a possible error. The source program defin...
The rapid development of the Internet has realized high-speed information transmission and resource sharing, greatly facilitating people's lives. Embedded systems are widely used in various electr...[Details]
1. Introduction
RFID (radio frequency identification) is a non-contact automatic identification technology that emerged in the 1990s. It uses the characteristics of radio frequency signal prop...[Details]
introduction
Solar cells and LED lighting are typical applications of new energy and energy-saving and efficient technologies. Solar LED lighting uses solar cells to convert solar energy...[Details]
Electronic systems are located at different points on the automotive power bus and therefore often need to operate under very stringent power requirements. These include load dump, cold crank, very lo...[Details]
1. Introduction
Testing the temperature of steel billets before rolling is an important measure to ensure the quality of steel. Traditional manual testing is difficult to ensure product qu...[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]
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]
Currently, each country is developing its own USB interface
charging specifications
, which leads to a major problem that a USB interface
charging
device manufactured in one country...[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]
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]
Multimedia processors are often the most power-hungry devices in portable electronic devices. Common ways to reduce CPU power requirements are to reduce clock frequency or operating voltage, but th...[Details]
Features
POE technology can ensure the safety of existing structured cabling while ensuring the normal operation of the existing network and minimizing costs. The IEEE 802.3af standard is ...[Details]
1. Introduction
With the rapid development of computer technology, communication technology, and integrated circuit technology, the large-scale application of field control instruments and equ...[Details]
Fairchild's FAN6208 is a synchronous rectification (SR) controller for isolated LLC or LC resonant converters that can drive two individual SR MOSFETs emulating the behavior of rectifier diodes. FAN62...[Details]
0 Introduction
The load with impact (rapid change) power in the power system will cause the voltage fluctuation and flicker of the power grid, causing many electrical equipment to fail to wo...[Details]