I made a matrix keyboard, with P00~P04 of the microcontroller as column line outputs and p20~P24 as row line inputs. If the scan order is from p00~p04 columns, the value of the p00 column may be the s...
Urgently need the recommendation of analog differential amplifier chip: 1. Input and output impedance is about 50 ohms 2. Analog amplifier bandwidth 0--100MHZ 3. Single-ended power supply 4. Different...
：Intelligent modules and their distributed systems (SDS) have been successfully applied in drive control, sequential control and process control systems. A detailed analysis of the application of inte...
The company now has a project that requires the use of thyristors to control traffic lights. I have never used thyristors before, so I have a few questions for my seniors. 1. After the thyristor is tu...
Using the REAL6410 core board, the program has been running normally for several days, but suddenly it is found that it does not work. When starting, the following appears: SMDK6410 # cannot run '/etc...
Tonight, I carefully studied the UART1 routine program and combined it with the data sheet. I felt that I didn’t understand it very well. I wanted to modify the read and write parameters based on the ...
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]
introduction
Since the beginning of the 21st century, the world of information has changed rapidly. Maybe a high-tech product will be released today and a better similar product will be releas...[Details]
China's new energy vehicles are in a transition period from research and development to real industrial development. In 2012, with the intensive launch of new energy vehicle policy planning, the de...[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]
To differentiate their products in a crowded and competitive market, manufacturers of handheld devices often consider battery life and power management as key selling points for cell phones, PDAs, ...[Details]
July 11, 2012, Beijing - Altera Corporation (NASDAQ: ALTR) today announced the launch of 40-Gbps Ethernet (40GbE) and 100-Gbps Ethernet (100GbE) intellectual property (IP) core products. These core...[Details]
1 Introduction
PROFIBUS is an international, open, and manufacturer-independent fieldbus standard. It is widely used in manufacturing automation, process industry automation, and automatio...[Details]
On the afternoon of July 10, Beijing time, Taiwan's largest chip designer MediaTek expects its smartphone chip shipments to grow by double digits in the third quarter of this year, and the company is ...[Details]
1 Introduction
There have been many studies on the detection and protection of power grid short circuit and line fault. The short circuit, overload and overvoltage protectors on the market have ...[Details]
In the single-chip microcomputer system, in addition to display devices, sound devices are often used, and the most common sound device is the buzzer. Buzzers are generally used for some low-demand...[Details]
Single-chip microcomputers are widely used because of their small size, powerful functions and low price. This article introduces the method of designing a micro electronic piano using the AT89C51 sin...[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]
LED lighting: Basic circuit design can be completed in as little as one day
Semiconductor manufacturers are also getting involved in the LED lighting business. The power circuit of LED req...[Details]
The serial interface real-time clock chip DS1302 launched by Dallas Company in the United States can trickle charge the backup battery of the clock chip. Due to the main features of the chip such a...[Details]
0 Introduction
Under normal circumstances, the three-phase power in the power system is symmetrical, and they meet certain amplitude and phase conditions; but when the load changes, the syst...[Details]
Embedded System
京公网安备 11010802033920号
EEWORLD
