[i=s] This post was last edited by littleshrimp on 2015-11-11 11:38 [/i] For example, if a high-bit ADC and some analog front-end circuits require 5V power supply, can USB 5V be used for power supply?...
Now I am publishing all the source code of the simulation part of a product made by a company in 2006 for everyone to learn and refer to! Including the menu management algorithm. The menu page can be ...
Scatter points! I finally understand the syntax of AHDL and VHDL!! AHDL and VHDL are interface description languages. They are not computing languages. They are not logic design languages. As for whet...
I want to test the efficiency of a program. I have tested this efficiency through the pb platform (if it is not embedded in this platform, it will not show the name of this program, but unknown instea...
In order to prevent traffic accidents, when the intelligent detection device of the car detects danger ahead, it must send a warning message to the driver. The voice alarm clearly reminds the drive...[Details]
This article discusses how to use an ultra-low-power RF transceiver chip from Zarlink Semiconductor for pacemakers, neurostimulators, drug pumps, and other such implantable medical devices to achiev...[Details]
This article introduces a miniature home electrocardiograph. The instrument has powerful functions: display monitoring, storage, playback, printing, record management, power alarm, telephone or Intern...[Details]
The hardware circuit principle is shown in Figure 1. In the specific design, each part should consider the anti-interference problem to minimize the impact of interference on the performance of the...[Details]
introduction
Cars are becoming an indispensable part of people's lives. However, what worries car users is that the theft of cars is increasing year by year. This paper aims to design a conven...[Details]
There are many ways to attenuate signals. The most commonly used method is to divide the voltage using resistors. The common circuits are as follows:
Oscilloscope pre-stage attenuation c...[Details]
Electrocardiogram is an important means of diagnosing heart disease. However, due to various reasons, it is difficult to capture abnormal electrocardiograms with ordinary electrocardiographs. Although...[Details]
The microwave multifunctional therapeutic device uses microwave radiation for heating treatment, which can achieve the effects of sterilization and blood circulation. Using microwaves to directly c...[Details]
When it comes to ATX power supply, people will think of two "classic" ICs: pulse width modulation chip TL494 and voltage comparator LM339. The new dedicated control chip AT2005B has the functions ...[Details]
The full name of RFID is Radio Frequency Identification, which uses radio frequency to realize data transmission between programmable controller (PLC) or microcomputer (PC) and identification, ther...[Details]
In the past one or two years, driven by Apple's iPhone, the smartphone market has expanded rapidly. An important feature of portable products such as smartphones is that they have more and more fun...[Details]
0 Introduction
The peak value of AC voltage refers to the maximum value (positive peak value) or minimum value (negative peak value) of AC voltage, which is a very important parameter in t...[Details]
1 Introduction
Virtual instrument VI (Visual Instrument) is a kind of instrument system that uses the powerful hardware and software resources of computers as the support of instruments, a...[Details]
In the current international financial crisis, video surveillance is one of the few industries that has grown against the market trend. Market research firm ABI Research predicts that in 2009, two ...[Details]
The following figure is a schematic diagram of the fiber optic video surveillance network solution of OnAccess@ of Shoumai Communication. It is completely based on video digitization and Ethernet t...[Details]
Analog electronics
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