LM311 is a voltage-frequency conversion chip produced by National Semiconductor (NS). After National Semiconductor was acquired by Texas Instruments (TI), it became a product produced by Texas Instrum...
[i=s]This post was last edited by star_66666 on 2018-2-7 19:30[/i] I started the holiday on February 1st. I was too idle at home and couldn't study quietly. So I thought about getting the arm-linux-gc...
[size=4][color=#595959]Filter capacitors, common mode inductors, and magnetic beads are common in EMC design circuits, and are also the three most powerful tools for eliminating electromagnetic interf...
In the same batch of boards, other boards can work normally, but one board cannot communicate with the processor. Reading the registers shows all zeros, and the Linux system of this board cannot find ...
[font=宋体][size=2][b]Thermistor[/b](thermistor)——Model MZ, MF:[/size][/font] [size=2] It is a nonlinear resistor that is sensitive to temperature and whose resistance value changes with temperature. It...
[i=s]This post was last edited by alan000345 on 2020-3-2 15:42[/i]Section 4 TPS6281x-Q1: The "seed player" of secondary power supply
Following the introduction of wide input buck power supply in the p...
Sailing is gaining more and more attention. How to use modern technology to assist training and improve competition results is particularly important. Considering the real-time data collection in t...[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]
1. Principle of displacement angle sensor
The angle sensor is used to detect angles. It has a hole in its body that fits the LEGO axle. When connected to the RCX, the angle sensor counts once ...[Details]
In the previous series, we have listed some basic knowledge of C language in Tables 1 to 3. We hope that beginners can strengthen their memory of the above tables and gradually learn to use them wh...[Details]
1. System Structure
This system is a simulation system of indoor air-conditioning temperature/humidity control system. The data acquisition and control center collects temperature/humidity...[Details]
Since the No. 4 blast furnace of Handan Iron and Steel was put into operation in 1993, its external equipment has been seriously aged, and the original PLC control system TDC3000 of the hot blast furn...[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]
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]
Corelink Semiconductor has launched the CL1100-based 5-7W E27 LED lighting driver system solution DB2. This driver module meets the requirements of small size (L×W×H=5.1cm×2.1cm×1.8cm), low standby...[Details]
System Overview
The system consists of a signal preprocessing circuit, a single-chip computer AT89C2051, a systematic LED display module, a serial port data storage circuit and system software...[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]
With the rapid development of the national economy, lifting and hoisting operations are used more and more frequently and widely in various fields of economic construction. China has continuously expl...[Details]
Against the backdrop of global warming, energy conservation and emission reduction have become a global hotspot and focus, which has also sounded the clarion call for the take-off of the LED lighti...[Details]