Shenzhen Changjiang Connector Co., Ltd. is a world-leading professional connector manufacturer with 20 years of experience. Its products mainly include wire-to-board connectors, board-to-board connectors, wire-to-wire connectors, wire harness processing and connector design, mold development and manufacturing. It is compatible with international brand connectors from Europe, the United States, Japan, South Korea and other countries.
I would like to ask you, I use this circuit to measure AC current. The voltage on the secondary side is 1.29, but why is the final reading only 1.22? How can I reduce this error?...
[i=s]This post was last edited by 5之丹公英 on 2016-2-12 22:06[/i] [align=left][font=宋体][size=18.0pt]The village has changed a lot. The small bridge at the entrance of the village has been rebuilt and sea...
[font=微软雅黑] [size=3][/size] [size=3][/size] [size=3]This classic science fiction movie of the year was released on November 19th. A colleague went to see the 3D version and fainted on the bed when he ...
I am a beginner. I finally wrote a running light. Now I want to learn PWM. I want to use PWM to control the brightness of the LED light, but I don’t know how to write it. Please give me some advice....
I am looking for a circuit or control chip that can output negative voltage. The input voltage is required to be 19-28V. The output voltage is -50 or below. There is no specific requirement for the ou...
[color=#444444][font=Tahoma,]I've been working on GPRS recently, and I'm using the YYW_M203C module. [/font][/color] [color=#444444][font=Tahoma,]This module has both GPRS and GPS positioning. [/font]...
The circuit shown in the figure is a three-digit tachometer used to measure low frequency signals with a repetitive time interval of 0.235 to 15 seconds. The tachometer has a speed range of 4 to 255 r...[Details]
Preface
Sleep apnea is a very common sleep breathing disease. According to research, about 24% of adult men and 9% of adult women, or more than 2 million people, suffer from this disease ...[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]
Broadband services supporting triple play voice, video and data are evolving for first mile customers (small businesses and homes). A key factor in this FTTx evolution is GPON (Gigabit Passive Opti...[Details]
In order to ensure the reliability of the driving assistance system and the basic functions of the car, and also to leave suitable connection interfaces for the car's future new entertainment and ...[Details]
This article will discuss a common problem in wireless mobile data reception.
Problems facing RF receivers
The common problem faced by RF receivers is that the same hardware must be used ...[Details]
AD604 is a product of Analog Devices (AD). Compared with similar products, AD604 has the characteristics of ultra-low noise, high precision, continuously adjustable gain, and the decibel (dB...[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]
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]
Focus shift problem
Visible light and infrared light have different wavelengths, so the imaging focus is not on the same plane, which results in a clear image under visible light condition...[Details]
With the development of LED technology, the application of LED has expanded from the traditional low-power portable product backlight to medium- and high-power indoor lighting, outdoor lighting, an...[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
With the rapid development of modern science and technology and the progress of society, service robots are becoming more and more closely connected with people's lives,...[Details]
As an environmentally friendly and energy-saving solution, LED lighting has found its place in a wide range of applications such as cars, homes, office buildings, hotels, airports and street lamps....[Details]
Introduction
The wireless market is like a new field for us. The explosive growth of new radio frequency (RF) technologies has created new opportunities to solve old problems. Flexible hig...[Details]