It is a 1MHZ PWM signal. The 12V side is stepped down to 5V and fed to the microcontroller. It is found that the 5V power supply has more burrs, causing the PWM output waveform to be distorted. 12V 24...
Microstrip Antenna Design The theory of microstrip antenna design in this lecture is taken from Microstrip Antenna (written by IJ Ball P. Bukhatia, translated by Liang Lianzhuo et al., published by El...
I have never had any problems downloading NK.bin to a WinCE5 device (Marvell XSCAL) using PB, EShell, and some TFTP tools via Ethernet or USB RNDIS in WinXP. However, in Windows Vista, when I use thes...
[color=rgb(0,0,0)] The full name of FLASH is FLASH EEPROM, but the operation method is different from that of conventional EEPROM. The biggest difference between FLASH and EEPROM is that FLASH operate...
Everyone thinks this topic is incredible and is promoting feudal superstition! ! ! ! Actually, it is not. I often listen to the storytelling of "Shan Tianfang", which talks about Yue Fei's son Yue Tin...
When I was doing a temperature detection, I used the negative feedback circuit composed of the following op amp and optocoupler to isolate the analog signal. In the actual circuit, when the input sign...
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]
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]
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]
With concerns about the growing energy crisis, motor efficiency has become an important and timely topic. This is because motors use 63% to 70% of the electricity produced in the United States and ...[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]
summary
This article will briefly analyze the success and shortcomings of high-frequency DC-DC switching power supplies in the process of miniaturization (the second basic goal), and propose m...[Details]
The Challenge:
Improving Siemens Wind
Turbine Controls
System software automated testing for regular releases, validating wind turbine control system components during the developme...[Details]
O Introduction
For people who are in the wild, a question that they are more concerned about is the altitude of the place where they are. However, there are very few such products on the mar...[Details]
According to the National Shipbuilding Industry Economic Research Center, the total shipbuilding capacity in my country last year was about 9×106t. The new ship orders exceeded 17×106t, accounting ...[Details]
1. Introduction
Diesel engine test is the last key process in the diesel engine production process, which plays a very important role in the manufacturing quality of diesel engines. Its main c...[Details]
The construction of voltage and current feedback amplifier application circuits is generally the same, except for a few key points.
Current feedback amplifiers have higher sl...[Details]
Facility cultivation technology mainly refers to the technology of using ordinary greenhouses or greenhouses to produce crops such as vegetables and fruits. With the popularization of facility cultiva...[Details]
Automobile testing is an important means to discover various problems in automobile design and development. Based on the test results, an objective evaluation of various automobile performances can...[Details]
1 Introduction
In recent years, the application of LED display screens has developed rapidly, promoting the progress of LED driver ICs. Based on the high reliability of LEDs and the consistenc...[Details]