01Thereis a high-gain inverting amplifier in the MCS-51 microcontroller. The input of the inverting amplifier is XTAL1 and the output is XTAL2. The oscillator circuit and the clock circuit formed by t...
Due to logistics and the epidemic, the development board has been received for a while. I will continue to evaluate it when I have time. E840-DTU (EC04) is a new generation of high-performance 4G DTU ...
[align=left][color=rgb(25, 25, 25)][font="]Working in the electronics industry, I have an indescribable feeling for all kinds of electronic components. For engineers working in the electronics industr...
Design of Boost APFC Converter
Design requirements: Input voltage: 85~265VAC ; Output voltage: 400VDC ; Maximum output power : 80W ; Power factor input: greater than 0.95 . Select all components of th...
Translated from - semiwikiToday’s society is becoming more multimedia-centric, data-driven, and automated. Autonomous driving systems are gaining popularity at an accelerated pace. Automation, analyti...
If USB controls high current MOS via MCU's GPIO,If there is no isolation measure between GPIO and MOSFET, such as no optocoupler or isolation transformer, but they are directly connected,If the MOS is...
Modern life is changing with each passing day, and people cannot live without electricity. In the process of using electricity, there are problems with electricity safety. In electrical equipment, su...[Details]
The test method for the total power of a three-phase system is different from that of a single-phase system. Generally, we use a multi-channel power meter or power analyzer to test it. At the same ti...[Details]
(Image source: General Motors official website) According to foreign media reports, Takata airbag failure has affected millions of GM vehicles, and GM has applied to the National Highway Traffic...[Details]
When using high performance liquid chromatography , pipeline blockage is one of the most common faults. The following article introduces the causes and solutions of liquid chromatography pipeline ...[Details]
It is reported that Ningbo Shanshan Co., Ltd. intends to acquire 70% of the shares of the holding company through capital increase at a base purchase price of more than US$770 million, and indirectly...[Details]
The development direction of the "four modernizations" of automobiles is the future development trend of the automobile industry, including autonomous driving, networking, power system electrificatio...[Details]
#include
#define Frequence 11 //Crystal frequency unit is MHZ
#define DELAY 10*Frequence/6 //Send program delay
#define SLEEP 8*Frequence/6 //Send program delay
sbit KBCLK="P3"^0; //Keyboard cloc...[Details]
This morning, OPPO officially announced that the first batch of 5G mobile phones have obtained 3C certification, and OPPO is among them. With the three certificates in hand, the future is promising. ...[Details]
On February 19, Ultrasonic Electronics responded to investors on the investor interaction platform that after the completion of the company's "New Special Printed Circuit Board Industrialization (Ph...[Details]
1. Set the multimeter to the R*10 position, and use the meter to intermittently touch the two output ends of the sound head coil. The sound membrane will make a "pop, pop" sound. If the sound is loud...[Details]
A light emitting diode ( LED ) is a semiconductor (diode) that, when forward biased by a voltage/current source, emits visible light of a specific color (wavelength), with a brightness that depends on...[Details]
The circuit is very simple so I won't draw a picture. The segment of the digital tube is port p0, and the two digital tube positions are p2.5 and p2.6 respectively.
#include reg52.h
sbit cs1=P2^5;
s...[Details]
Technology is a key selling point for new vehicles today. In the past, consumers valued a car’s road performance more than anything else, but now they are willing to pay for the performance of in-car...[Details]
According to the latest research report released by Strategy Analytics, the global smartphone and tablet slim modem (independent baseband processor) market revenue increased by 72% to US$5.8 billion ...[Details]
On October 25, 2016, Xiaomi launched the first generation of MIX products, which amazed everyone and opened the prelude to the era of full-screen mobile phones. Xiaomi said that it will hold the...[Details]
Microcontroller MCU
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