The hysteresis comparator can also be understood as a single-limit comparator with positive feedback. For a single-limit comparator, if the input signal Uin has a slight interference near the threshol...
The GSM module I use is EM310. Now the hardware circuit is not out yet, the company asked me to write the design first. I want to know, if I send the command step one: (AT%ETCPIP="dtu", "123"), regist...
1. Design topic: Design a ±5V1A conversion circuit. Use the webench tool to design a 12V battery powered ±5V1A conversion circuit. 2. Design process: Use the power architecture page of the webench too...
I want to make a point-and-read device. There seem to be several chipsets from several manufacturers to choose from. Can anyone provide a chipset for development (or where can I find an agent to buy o...
The following uses NI-VISA to communicate with the USB device eZ430-RF2500, which is passed in the development environment using LabVIEW2010 and NI-VISA503full. 1. Background of USB and VISA VISA is a...
Abstract: In order to generate a stable excitation signal, the design of a digital frequency synthesizer is implemented on FPGA using Verilog hardware language. The design includes accumulator, wav...[Details]
This controller uses PIC16C54 single-chip microcomputer as the controller, and it is very easy to use: just connect a telephone line to the loudspeaker through the controller, and you can rem...[Details]
Continuity test
A variety of devices need to be checked for continuity, including cable assemblies, printed circuit boards, and connectors to ensure that these components have the expected contin...[Details]
At very low temperatures, certain metals and alloys lose their resistance to electric
current
and become
superconductors
. Two parameters that are often measured are the transition ...[Details]
Based on the actual situation, a remote intelligent anti-theft alarm device for home use, connected to the telephone line, simple to operate, and stable and reliable in operation is designed. When ...[Details]
Some people think: as long as the program runs well, it doesn't matter how the original program is written. But this is absolutely not the case. Software is not completed in one go, and it is neces...[Details]
Various electronic and electromagnetic interference inside and outside the car often puts automotive electronic equipment in dangerous working conditions, degrading the performance of electronic eq...[Details]
UPS is an uninterruptible power supply (UPS). This device can ensure that after a power outage in the computer system, users can continue to work for a period of time and save files urgently, witho...[Details]
In the field of video surveillance, video compression encoding formats have evolved from M-JPEG, H.263, MPEG4 to H.264. Currently, H.264 is the mainstream compression algorithm. Its biggest advantage ...[Details]
Compared with traditional lighting fixtures, LED lamps do not need to use filters to produce colored light. They are not only highly efficient and pure in color, but also can achieve dynamic or gra...[Details]
1. Project Overview:
Changan Automobile Manufacturing Plant could produce 6 types of cars, with an annual output of about 80,000 vehicles. Its assembly line was manufactured in the late 19...[Details]
When maintaining high-voltage inverters in summer, pay attention to the temperature of the inverter installation environment, regularly clean the dust inside the inverter, and ensure that the cooli...[Details]
Comparison of electrostatic testing between automotive electronics and ordinary electronic products
Electrostatic discharge is a natural phenomenon. When two materials with different di...[Details]
Introduction: At present, the main grounding form of the low-voltage power distribution system in our city is only one TN-C grounding method. Nowadays, there are more and more types of electrical e...[Details]
Integration of the secondary of redundant AC/DC power supplies has been largely ignored by semiconductor manufacturers. The result is a multitude of discrete components such as op amps, transistors, r...[Details]