I'm working on a project recently, 51 control digital tubes, the chip used is MAX7219 cascade mode, 9 cascade drive 69 digital tubes (8 chips drive full 8 bits, one chip only drives 5 bits), there are...
I would like to ask you, the 250W high pressure sodium lamp street light used to have no compensation (power factor was 0.5), the stable current was 3.8A, now after compensation the power factor becom...
Use the CH582 development board as the GATT server to provide data read and write operations. In this way, you can establish a connection with it through a mobile phone and perform read and write oper...
Principles of Operating Systems Tian Lihua, Xi'an Jiaotong University : https://training.eeworld.com.cn/course/5839The course of operating system principles mainly introduces the design methods and im...
[i=s]This post was last edited by paulhyde on 2014-9-15 08:59[/i] [font=仿宋_GB2312][size=3][/size][/font] [font=仿宋_GB2312][size=12pt]Approved by the Higher Education Department of the Ministry of Educa...
[i=s] This post was last edited by paulhyde on 2014-9-15 09:17 [/i] The infrared remote control transmitter needs to be coded. I am now troubled by whether there is a coding program? Can anyone tell m...
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]
As LEDs continue to improve in almost every aspect of performance and cost, LED lighting is being used in an increasingly wide range of applications, among which LED street lights are a focus of in...[Details]
I. Introduction
In the field of power conversion, isolated converters (forward, flyback, and double-ended) with low output DC voltage all use MOSFET as the rectifier device. Since these devi...[Details]
To differentiate their products in a crowded and competitive market, manufacturers of handheld devices often consider battery life and power management as key selling points for cell phones, PDAs, ...[Details]
July 11, 2012, Beijing - Altera Corporation (NASDAQ: ALTR) today announced the launch of 40-Gbps Ethernet (40GbE) and 100-Gbps Ethernet (100GbE) intellectual property (IP) core products. These core...[Details]
A multi-point temperature control heating control system was designed using the SST89E564RC single-chip microcomputer and a new temperature measuring device. The heating system can be controlled in...[Details]
AD8205 is
a single-supply high-performance differential
amplifier
launched by
Analog
Devices of the United States
. The typical single-supply voltage is 5V, and its common-mode volta...[Details]
my country is a big country in agriculture, grain production and consumption. Grains are a necessary condition for our nation to survive and develop. The flour processing industry will exist forever w...[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]
In the single-chip microcomputer system, in addition to display devices, sound devices are often used, and the most common sound device is the buzzer. Buzzers are generally used for some low-demand...[Details]
This paper designs a 16x16LED Chinese character display bar based on single-chip dynamic scanning control, briefly analyzes the principle of Chinese character display, and studies how the LED displ...[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]
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]
D5026A is a driver IC designed by Shanghai Debei Electronics for energy-saving LED display screens. Its design concept is energy-saving and compatible with existing solutions, that is, it can be ...[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]