[b][color=#666666][font=Helvetica, Tahoma, Arial, sans-serif][size=12px]Constant current source and its application circuit, introduces common constant current source circuit and its application as ac...
Question 1: What is RFID? RFID is the abbreviation of Radio Frequency Identification, commonly known as electronic tags. Question 2: What is RFID technology? RFID radio frequency identification is...
[i=s]This post was last edited by jj1989 on 2017-12-14 23:45[/i] [size=4][md]##Functional test Next, we will test the functions. Here are two videos to show the basic functions of the keyboard. There ...
Hello everyone, I want to learn FPGA and I am very interested in it. So I want to buy a learning board. Can you recommend a board that is more suitable for beginners? The price should be within 800 yu...
Please help me, masters. :Cry: Convert 50hz AC to DC, and use AD to measure the voltage of the microcontroller. The AC amplitude should be around 0 to 15v. The DC voltage should be the AC effective va...
Dear experts, I recently used the LDC1000 sensor, but it burns easily... I don't know the reason. Has anyone used it before? Can you give me some suggestions for solutions? ? Thank you...
When the WDP500-2A plane grating monochromator is used to test the emission wavelength of a high-power laser diode at different currents, the matching of the laser diode has the disadvantages of lo...[Details]
This article discusses how to wake up a touch-sensitive device such as a tablet without touching the device, using basic gesture recognition and novel proximity sensors. The article discusses the p...[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]
A multi-point temperature control heating control system was designed using the SST89E564RC single-chip microcomputer and a new temperature measuring device. The heating system can be controlled in...[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]
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]
my country is a big country in agriculture, grain production and consumption. Grains are a necessary condition for our nation to survive and develop. The flour processing industry will exist forever w...[Details]
0 Introduction
With the rise and continuous improvement of the solid-state lighting industry, light-emitting diodes (LEDs) have become an alternative lighting technology and are gr...[Details]
This paper designs a 16x16LED Chinese character display bar based on single-chip dynamic scanning control, briefly analyzes the principle of Chinese character display, and studies how the LED displ...[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]
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]
One in five car failures are caused by batteries, a problem that will become more serious in the coming years as electric-by-wire, start/stop engine management and hybrid (electric/gas) vehicles be...[Details]
Rated capacity refers to the maximum output power of the UPS (the product of voltage V and current A).
Usually, the UPS power supplies sold on the market are marked with "W" (watt) for smaller...[Details]
DCDC means DC to DC (conversion of different DC power values). Anything that meets this definition can be called a DCDC converter. Specifically, it means converting the input DC into AC through a s...[Details]
HL201A is a special thick film driver integrated circuit with a capacity of less than 75AGTR developed by Xi'an Power Electronics Technology Research Institute. The article explains the pin arrange...[Details]
Analogue and Mixed Signal
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