Regarding the selection of signal input mode of power amplifier. In professional audio engineering, we often encounter problems such as signal parallel connection and bridging. First of all, we must c...
I remember that I first came into contact with microcontrollers in 2002. At that time, the only microcontrollers I knew and used were AT98C8051 and AT98C8052. I had only heard of the 51-type microcont...
[i=s]This post was last edited by bobde163 on 2020-11-20 12:10[/i]Today I need to use Fluke F17B+ multimeter to measure uA current, which is different from the measurement of another Uni-T UT890C+. Th...
First of all, I declare that I am a rookie. Although I have worked for some years and have worked very hard, I am still a rookie. There is a cycle that makes me very distressed. When I first joined a ...
How can the compensation circuit R' be equal to R1 in parallel with Rf? When the input signal is equal to 0, are both the input and output terminals equivalent to being grounded?...
The increase in Internet data capacity and the continuous development of wireless networks have forced equipment manufacturers and designers to adopt ATCA or MicroTCA standards. ATCA (Advanced Tele...[Details]
PLC: Programmable Logic Controller, suitable for measurement and control at industrial sites. PLC is increasingly used in industry, and as industrial equipment becomes more and more dependent on PL...[Details]
According to foreign media reports, Ford has applied for a patent for a method of reporting speeding drivers to the police through cars. On July 18, the U.S. Patent and Trademark Office (USPTO) pub...[Details]
On June 9, a poster suspected to be of a new iQOO product suddenly circulated on Weibo. The poster showed that iQOO will launch a new iQOO Youth Edition equipped with a Snapdragon 845 processor. ...[Details]
On October 29, Pengding Holdings released its 2021 third-quarter report. In the first three quarters, the company achieved total operating revenue of 21.014 billion yuan, a year-on-year increase of 2...[Details]
Preface In "How Programs Run in CPU (II)", the author analyzed the execution process of first-level function calls and second-level function calls from the perspective of PC pointer register. So how ...[Details]
The first circuit principle: The AC220V voltage is half-wave rectified by D3 and filtered by C1 to obtain a voltage of about +300V. One path is added to the switch tube Q2 c pole through the pri...[Details]
Polaroid Originals today announced its first Polaroid printer, the Polaroid Lab, which allows users to print photos taken with their phones. The latest version of the Impossible Project's insta...[Details]
DSP has high-speed computing power and rich peripheral interfaces, and is widely used in embedded systems. Many DSP-based embedded systems are deployed in harsh environments or remote areas. When sof...[Details]
STC has survived for many years mainly relying on the college student market and the ultra-low-end small-batch market (the 51 series does not have a large share in industrial microcontrollers), and h...[Details]
According to digitimes, UMC, World Advanced Semiconductor, Powerchip, SMIC and GlobalFoundries will once again increase their wafer foundry quotations to cope with the continued tight production capa...[Details]
With the continuous iteration of technology, the new flagships of major mobile phone manufacturers have gradually made 100-watt fast charging a standard feature. Today, according to digital ...[Details]
Before the processor works normally, some initialization work must be done, and the most important one is to initialize various clocks. After analyzing the reset and clock control (RCC) module of STM3...[Details]
Luxmeter, or lux meter, is a special instrument for measuring light intensity and brightness. It measures the light intensity (illuminance) of an object, that is, the ratio of the luminous flux on th...[Details]
Analogue and Mixed Signal
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