As the title says, I have looked at the common mode rejection ratio test schemes of YY1139 and IEC60601-2-25 before. I don’t quite understand why the 20Vrms/50Hz sine test signal is selected. I would ...
Please help me solve the problem. There is a statement that can be compiled in C51: struct{ any_data[5]; any_data[8]; }no1; struct{ struct part no1[2]; any_data[2]; }no2; and passed to PIC: struct{ an...
Requirement: [list=1] [*][b]Xiaomi TDS water quality monitoring pen[/b] [*][b]**The recommended water quality monitoring pen (I forgot the model, 80+ yuan, I will add it later when I find the model)[/...
[i=s]This post was last edited by DDZZ669 on 2020-9-14 22:23[/i]The previous article conducted an unboxing and evaluation: [GD32450I-EVAL] + 01 Unboxing and onboard resource evaluation . This article ...
[i=s]This post was last edited by Xiao Shuoshuo on 2015-2-21 09:06[/i] [color=rgb(0, 0, 0)]I registered this forum a long time ago, but never paid attention to the posts in the forum. Recently, I real...
When the WDP500-2A plane grating monochromator is used to test the emission wavelength of a high-power laser diode at different currents, the matching of the laser diode has the disadvantages of lo...[Details]
This article discusses how to wake up a touch-sensitive device such as a tablet without touching the device, using basic gesture recognition and novel proximity sensors. The article discusses the p...[Details]
Microcontrollers (MCUs), which are widely used in automotive electronics, are rapidly facing time and cost pressures. The main advantage of using MCUs has always been to create high-level system in...[Details]
Analog engineers have traditionally struggled with complexity when designing power supplies that required multiple outputs, dynamic load sharing, hot-swap, or extensive fault-handling capabilities....[Details]
The reason for the light decay of white LEDs: the decline of phosphor performance
So far, the rapid decline of the luminous performance of white light LEDs, especially low-power white light LE...[Details]
With the continuous improvement of the requirements of intelligent building security systems and the continuous improvement of people's safety awareness, indoor anti-theft has gradually attracted peop...[Details]
On the afternoon of July 10, Beijing time, Taiwan's largest chip designer MediaTek expects its smartphone chip shipments to grow by double digits in the third quarter of this year, and the company is ...[Details]
0 Introduction
With the rise and continuous improvement of the solid-state lighting industry, light-emitting diodes (LEDs) have become an alternative lighting technology and are gr...[Details]
With the rapid development of intelligent control technology, computers and information technology, the trend of information appliances IA (Information Application), computers and communications integ...[Details]
As a simple and practical input device, buttons have been used in various microcontroller application systems and are ubiquitous. However, the buttons used in different practical occasions are also...[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]
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]
In today's body control module (BCM) designs, savvy engineers are moving away from electromechanical relays whenever possible. Their next step is to eliminate fuses. But is eliminating fuses a nece...[Details]
LED technology has made rapid progress, and improvements in chip design and materials have promoted the development of brighter and more durable light sources, and the scope of light source applica...[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]
Analog electronics
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