[color=#333333][font=微软雅黑]I want to design an amplifier with a bandwidth of 15MHz~25MHz, and a gain of 40dB at 20MHz. The input signal is about 1mv. I used the OPA847 common-phase amplifier circuit to...
[table=98%] [tr][td]The power consumption of FR6972 LCD display is nearly 20UA, while that of FR4133 LCD display is only 6UA; the circuits are similar, the only difference is that R23/LCDCAP is connec...
Sometimes we need to process data by bytes, especially when doing 8-bit data communication. Most MCUs support byte addresses, which means that when an address is added by 1, the data is moved by one b...
Original article by Mr. Gaosu | Liu LijuanRegarding the TX and RX layering issue, I often hear three different opinions:"What is stratification? Um...it's up to you."
"Why do you ask me to separate th...
As shown in Figure 1, it is an RS232 communication ICFigure 1 Figure 2 is the definition of some pins, what do receiver input and driver input mean, what is the difference? Similarly, what is the diff...
The 2019 ST National Tour Seminar will be launched in 13 cities ( Beijing, Hangzhou, Chengdu, Hefei, Shenzhen, Xi'an, Nanjing, Shunde, Changsha, Jinan, Xiamen, Shanghai, and Guangzhou ) from September...
On March 23, State Grid Jilin Economic Research Institute held an internal review meeting on the feasibility study simulation design of Jilin Province's 100MW/200MWh lead-carbon battery centralized en...[Details]
The new coronavirus outbreak has broken out globally, and domestic companies that have just resumed work after surviving the domestic epidemic are facing a new round of tests. As the epid...[Details]
On the afternoon of June 10th (UK time), the Science and Technology Committee of the House of Commons of the UK Parliament held a hearing on the construction of UK telecommunications infrastructure, ...[Details]
Recently, Google has finally added support for multiple windows for Chrome apps on iPad. This feature is currently available for users to test through TestFlight and should be available to all users ...[Details]
The quality of a full-color
display screen
can be judged from the following aspects:
1. Flatness
The surface flatness of the LED display screen
should b...[Details]
In recent years, with the rapid development of artificial intelligence, the Internet of Things, big data and the deployment of 5G commercial services, our work and life are becoming more and more int...[Details]
The unijunction transistor is also called a double base diode. Its symbol and appearance are shown in the attached figure. The method to determine the emitter E of a single junction transistor ...[Details]
Input capture, as a function of the timer, is widely used in industrial speed measurement. Some timers of STM32 have four external channels, and one timer can be used to collect the frequency of four...[Details]
At the end of December 2019, the finals of the 3rd Beihang Global Innovation and Entrepreneurship Competition were held in Beijing. After fierce competition in the preliminary and semi-finals and lay...[Details]
1 Classification of switching power supplies
Switching power supplies are divided into two types: isolated and non-isolated. Here we mainly talk about the topology of isolated switching power suppl...[Details]
Huawei unveils 2022 Vision Smart Screen lineup, including first gaming smart screen Z eSports version On September 29, 2022, on the third anniversary of the launch of Huawei Smart Screen, Huawei he...[Details]
On August 30, the Shaanxi Provincial Development and Reform Commission issued the "Notice on the Time-of-use Electricity Price Policy for Residential Electric Vehicle Charging Pile". The "Notice" s...[Details]
12v-80v/10A DC voltage converter circuit
This push-pull converter circuit uses two SIPMOS transistors BUZ41A and an integrated circuit TDA4718 as the power supply for the ship power grid. The input...[Details]
Voltage type inverter
circuit
Features: C exists.
Function of C: filtering and absorbing reactive power
Suitable for inductive loads
Voltage Source Inverter VSI
I...[Details]
News on the morning of February 18th revealed that malware specifically targeting Apple's M1 chip has recently appeared, indicating that criminals have begun to target Apple's self-developed ch...[Details]
Analog electronics
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