[hide]作为一种新的光源，近年来各大公司和研究机构对LED电源和驱动电路的研究方兴未艾。与荧光灯的电子镇流器不同，LED驱动电路的主要功能是将交流电压转换为直流电压，并同时完成与LED的电压和电流的匹配。随着硅集成电路电源电压的直线下降，LED 工作电压越来越多地处于电源输出电压的最佳区间，大多数为低电压 IC 供电的技术也都适用于为LED，特别是大功率 LED供电。再则，LED电源还应能利用...
There is a problem when using memcpy in my program. pBufOut is a BYTE pointer, and pbuf is an array of local variables. BYTE pbuf[40]; memcpy( pBufOut, pbuf + 3, 32 ); After executing memcpy, a lot of...
When adjusting EEPROM (IIC), the first time the program is run after the board is powered on, it can run normally. However, when the program is downloaded again and run again, the Serial Bus is always...
There was a small event in the forum some time ago (we don't produce code, we are FPGA code porters [url]https://bbs.eeworld.com.cn/forum.php?mod=viewthread&tid=467513&fromuid=391494[/url]) Everyone w...
[font=Tahoma][size=2][/size][/font] [font=Tahoma][size=2][/size][/font] [font=Tahoma][size=2][b]March 19th——"Huaian Information Vocational and Technical College Student Innovation MCU Technology Excha...
Traditional broadcasting systems generally need to be operated manually at a fixed time, and can only realize one-way broadcasting with few functions. Traditional bell ringing equipment has a singl...[Details]
1. Circuit composition
The whole circuit consists of two parts:
1. Power saving control circuit
As shown in the figure below. Including delay circuit and drive circuit.
(1) Delay ci...[Details]
1. Introduction
With the growth of parking demand, the scale of parking lots is becoming larger and larger. A lot of research has been done on intelligent parking lots in China, but most of th...[Details]
Converged processors meet scalability requirements
In current embedded system design, solutions based on MCU, DSP, FPGA and ASIC account for more than 90% of the market share. These solutions ...[Details]
0 Introduction
With the development of society, people pay more and more attention to security work. Monitoring products have been used in various fields instead of being used only in importan...[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]
Product series: PB-B-RS232/485 interface (hereinafter sometimes referred to as "interface") is a product in the PROFIBUS bus bridge series.
The main purpose of the bridge series ...[Details]
1. Overview
At present, an information revolution is in the ascendant around the world, led by microelectronics, computers and communication technologies, and centered on information technolog...[Details]
1 Introduction
With the improvement of people's quality of life, lamps are no longer just basic indoor lighting tools, but also a kind of practical art for architectural decoration. When ther...[Details]
Currently, each country is developing its own USB interface
charging specifications
, which leads to a major problem that a USB interface
charging
device manufactured in one country...[Details]
Overview
By transmitting ultrasonic energy into the human body and receiving and processing the returning reflected signals, phased array ultrasound systems can generate images of organs and s...[Details]
introduction
At present, the research on micron and nanotechnology is very active, which has led to the rapid development of microtechnology and micro-mechanical electronic system (MEMS) t...[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]
Don’t just look at the power when choosing a power supply
We know that a power supply with a low rated power can hardly meet the power supply needs of the system, which may cause frequent free...[Details]
In recent years, with the increasing maturity of LED technology, LED light sources have been increasingly widely used due to their advantages of using low-voltage power supply, low energy consumpti...[Details]
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