I have been admitted to graduate school and will work in radio frequency. I will graduate soon and I want to find something meaningful to do during the summer vacation. Some people suggest that I go d...
What happened: I needed a formaldehyde sensor for a gadget. I saw a company on Taobao that made formaldehyde sensors. They seemed quite professional and sold formaldehyde sensor interface boards. So I...
[i=s]This post was last edited by paulhyde on 2014-9-15 09:34[/i] With the rapid development of computer technology, embedded systems will play an increasingly important role in people's production an...
1. Resistivity --- Also called resistivity or specific resistance. It is a physical quantity that measures the conductivity of a material. It is represented by the letter ρ and its unit is ohm*mm2/m. ...
I have two questions for you experts:
1. The k60 series has 128k ram and 16k flex ram, but it is still not enough for my system. The document mentions that for FlexNVM devices: FlexNVM for high-tolera...
Dear digit hero, I use 89s52 to send a string through its serial port, why can't it stop? It's a very simple program, but I don't know where the problem is. I hope to get some guidance. The program is...
In early 2002, I started to write a working program for an IC card prepaid electricity meter. The meter used Philips' 8-bit 51-expanded single-chip microcomputer
87LPC764
, and wa...[Details]
1. Introduction
Since the 1980s, with the continuous development of automotive electronic technology, there are more and more electronic control units in automobiles, such as electronic fuel i...[Details]
introduction
For the voltage regulator modules (VRMs) that power the latest computer central processing units (CPUs), power supply designers have historically used multiphase interleaved b...[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]
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]
Printed circuit boards ( PCBs
)
are used in most electrical products
. If a PCB has low
insulation resistance
(IR), the performance of the circuits on the PCB will be greatly reduced...[Details]
At present, how various communication technologies will evolve after 3G is a focus of great concern in the industry. Especially for TD-SCDMA, whether it can achieve smooth evolution to the next gen...[Details]
With the rapid development of cities and the improvement of citizens' living standards, the number of various vehicles in cities is growing, and the demand for parking spaces in major commercial an...[Details]
0 Introduction
There are many types of sensors, and the working principles, measurement targets and measurement environments of different types of sensors vary greatly. The corresponding detection s...[Details]
The demand for improved healthcare environments is endless, so medical imaging equipment with higher resolution is needed to better observe the human body. High resolution brings problems with sign...[Details]
Electric bicycles have long been a means of transportation for lower-income groups due to their affordability. The largest concentrated expense in the use of electric vehicles is the cost of replac...[Details]
Battery clamps, commonly known as battery connectors, come in two sizes depending on the thickness of the battery terminals. One is the battery clamp used on thick terminals, with a positive termin...[Details]
Electrostatic coupling and interference occur when a charged object is close to the input of the circuit being measured. At low impedance, the effects of interference are not noticeable because th...[Details]
In order to prevent the lithium battery from being damaged by abnormal conditions such as overcharge, over discharge, and overcurrent, a lithium battery protection device is usually used to prevent...[Details]
Currently, high-frequency and high-efficiency DCDC converters are increasingly used in automotive electronic systems.
High switching frequency can use smaller power inductors and output filter...[Details]
RF/Wirelessly
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