What do you think after reading Power Design Tip 49? Now I will continue to share with you Power Design Tip 50: How to avoid common defects of aluminum electrolytic capacitors. Aluminum electrolytic c...
This is a pillow with a built-in music player and speaker. The suitcase-like design makes it easy to carry. When opened, it can unfold a large blanket. Even if you lie on the grass in the playground, ...
I want to use task to implement millisecond delay. When I want to delay, I call task to delay. But I encounter the problem of using clock. I don't know how to solve it. Which prawn can lend a hand? ? ...
I bought tq2440, which has four GPIO pins that support SPI protocol. But I don't know where to start debugging. I just started learning, and I have been browsing the Internet for many days. I have rea...
#include#include "math.h" unsigned char z,z1;//Get the step sequenceunsigned int lj1=0;//Accumulated times of motor aunsigned int lj2=0; //Accumulated times of motor bunsigned char pda,pdb;//Judge for...
I hope that friends who are interested will be careful in making it because of the 220V AC and safety issues. This darkroom AC/DC dual-purpose lamp has a contactless automatic conversion switch functi...
Introduction
Power subsystems are becoming more and more integrated into the overall system. Power systems have moved from being separate "essential dangerous devices" to being monitorable...[Details]
Battery life is critical for portable applications. For applications such as smoke detectors, security devices, and thermostats, factory-installed batteries need to last for more than 10 years. The...[Details]
Nippon Electric Works and Volvo Technology Japan have developed a wireless power supply system for electric vehicles (EVs). Using this system, the two companies have successfully conducted an exper...[Details]
VP2188 is a color STN LCD module produced by Jingdian Pengyuan. This module is a dot matrix transmissive color STN display screen with a color scale of 65 k colors and white LED backlight. Its core...[Details]
Problems such as the depletion of natural resources, air pollution, traffic congestion, and rising fossil fuel prices have forced societies and individuals to seek alternative means of transportati...[Details]
1. Disadvantages of choosing too high a voltage level
Choosing too high a voltage level will result in too high an investment and a long payback period. As the voltage level increases, the...[Details]
OC faults may be the most frequent and the most frequent of all faults in the inverter. They alarm during the startup process, during the shutdown process, during operation, and even when powered o...[Details]
Motors, especially those with brushes, generate a lot of noise. This noise must be dealt with if the appliance is to meet the requirements of EMC standards. The means to solve EMC are nothing more ...[Details]
Preface
In recent years, white light LEDs have gradually replaced incandescent bulbs and fluorescent lamps because they have unparalleled advantages over traditional light sources in terms...[Details]
Introduction
In industrial control, speed measurement is often required. Generally, a contact tachometer is used. This tachometer must be placed against the center of the shaft to measure. It...[Details]
0 Introduction
With the rapid development of social economy and science and technology, electric locomotives, subways and electric vehicles will be widely used. The power conversion and cont...[Details]
0 Introduction
Ultrasonic waves
are mechanical waves with a frequency of more than 20KHz, and the propagation speed in the air is about 340 m/s (at 20°C). Ultrasonic waves can be gene...[Details]
0 Introduction
Wireless Sensor Network (WSN) monitors the target by deploying a large number of sensor nodes in the target area. WSN realizes the positioning and tracking of the target, determi...[Details]
1 What is an LED floodlight?
LED downlights are also called spotlights, projection lamps, and spotlights. They are mainly used for architectural decorative lighting and commercial space lighti...[Details]
LED is the abbreviation of the English word. Its main meanings are: LED = Light Emitting Diode, a solid-state semiconductor device that can convert electrical energy into visible light. It can dire...[Details]
Analogue and Mixed Signal
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