[backcolor=rgb(222, 240, 251)]The linear regulators or switching regulators we use generally have a maximum current limit. What does this mean specifically? Does it mean that if the current exceeds th...
50mA current drives LD, the output power of LD is 30uW. 50mA current drives LD through the bias Tee circuit, so the output power of LD should also be 30uW. Why does the power of LD increase 20 times a...
Please give me some advice, thanks. . I have three questions: 1. Now RS232 serial port usually uses 9-frame connection line. The simplest connection is 3 connection lines, namely ground connection (co...
void delay(); void timer0(void); unsigned int count; main(void) { InitSysCtrl(); DINT; IER=0x0000; IFR=0x0000; InitPieCtrl(); InitPieVectTable(); There is no problem with the above program, and other ...
The USB OTG mouse is tuned. It is implemented. I did not involve the detailed screen because I was in a hurry. My program uses the arrow keys of the development board as a mouse. When the development ...
Add Display driver, and compile correctly after modification. Finally, the image can be generated, but there is no display after downloading to the board. The transplant I made is the smallest kernel....
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]
The Mobile Industry Processor Interface (MIPI) Alliance is an organization responsible for promoting the standardization of software and hardware in mobile devices. It has released the D-PHY specif...[Details]
Images in science fiction movies often break through the limits of reality, such as in the movie "Minority Report." Tom Cruise uses a multi-touch screen to browse information. Capacitive sensing te...[Details]
1 Introduction
Ultrasonic waves have strong directivity, slow energy consumption, and can propagate over long distances in a medium, so they are used for distance measurement. Ultrasonic detec...[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]
Xiaomi, a well-known Internet phone in mainland China, won a million-unit order contract from China Unicom on November 20 last year, which made Xiaomi famous in mainland China. In April this year...[Details]
General LED lighting has a current limiting resistor in the driving circuit, and the power consumed by the resistor has nothing to do with the LED light emission. In order to improve efficiency, a...[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]
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]
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]
Among the many members of the single-chip microcomputer family, the MCS-51 series of single-chip microcomputers has occupied the main market of industrial measurement and control and automation eng...[Details]
From the previous section, we have learned that the timer/counter in the microcontroller can have multiple uses, so how can I make them work for the purpose I need? This requires setting the timer/...[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]
Abstract: With the development and construction of BeiDou II system, China will shift from the situation dominated by GPS to the situation dominated by BeiDou II global navigation system independen...[Details]
Analogue and Mixed Signal
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