I am making a three-phase brushless DC motor drive module. The driver chip is MC33035. Now I am wondering why the N-channel MOS tubes of the lower bridge arm are all turned on (Vgs=13.8v) when I test ...
This is actually using the duty cycle of PWM to control the brightness of the LED. It is a very common function for microcontrollers, but it is even more unimaginably simple under mbed. Before looking...
I am testing the trigger interrupt of P2_0 port, and the configuration is as follows: void Exti_Init(void) {EA = ENABLE; ///Open the general interruptP2IEN |= 0X01; ///Open P2 interruptIEN2 = 1; //???...
[align=left][color=#191919]Recently I’ve noticed that there are MMs hanging in many places...[/color][/align][align=left][color=rgb(25, 25, 25)]Some are lightly made up...[/color][/align][align=left][...
I started using ESP from 8266, and jumped directly from Anxinke's Eclipse development to Arduino. At that time, I heard that Lua could also be used for development. Although I later purchased NodeMCU,...
[size=4] There are three main types of processors that I have come into contact with, general-purpose microprocessors (MPUs), digital signal processors (DSPs), and SPARC platforms (short for Scalable ...
Today's computer peripherals are pursuing high speed and high versatility. In order to meet user needs, seven companies led by Intel launched the USB (Universal Serial Bus) bus protocol in 1994, wh...[Details]
Today, with the increasing integration of functions, mobile phones can also be used as portable media players (PMP), digital cameras, handheld computers (PDAs), and even global positioning systems ...[Details]
introduction
Throughout the history of automotive lighting, power has always played an important role. Initially, cars only needed headlights to see the road in the dark. Later, other light so...[Details]
The solidification and modularization of intelligent video analysis algorithms are the current trends in the application of intelligent video analysis technology. It perfectly combines intelligent ...[Details]
A standard cell
is an electrochemical
cell
used as a voltage reference standard in many electrical standards laboratories
. If properly maintained, standard cells are very stable. The ...[Details]
1. Background:
The instrument system parameter detection and control of the chemical production workshop of Tangshan Coal Gas Coking Plant are all analog instruments, some of which are eve...[Details]
1 Introduction
In recent years, there have been many major advances in the production technology and processes of automotive headlights, which have greatly improved the performance of automoti...[Details]
The automotive lighting and signal control system is responsible for controlling the vehicle's lighting, signal lights, electric horns, reversing and brake buzzers. Traditional automotive lighting...[Details]
General LED lighting has a current limiting resistor in the driving circuit, and the power consumed by the resistor has nothing to do with the LED light emission. In order to improve efficiency, a...[Details]
The typical fault troubleshooting listed below is for reference of maintenance personnel.
When the computer is turned on, the indicator light is off and there is no screen display
Mainte...[Details]
I've been studying dot matrix recently. It looks simple, but it takes a while to master it completely! The 8*8 dot matrix hardware circuit I'm making now is like this. The row is driven by 74HC138 + t...[Details]
12v Lead Acid batteries used in trucks, cars, RVs and uninterruptible power supplies are usually rated at 12V. This circuit monitors the battery, the charge and discharge curves, gives the cu...[Details]
Different initialization between C8051F and 80C51 series microcontrollers
In the past 30 years, major electronic component manufacturers in the world have launched their own unique single-chip...[Details]
Capacitors
are basic components in various electronic devices and are widely used for bypassing, coupling,
filtering
, tuning, etc. in electronic circuits. However, to use capacitors,...[Details]
Introduction
Nowadays, people pay more and more attention to the security alarm system, and people have higher and higher requirements for the functions and performance of the alarm. This paper prop...[Details]
Embedded System
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