In the first half of 2020, from epidemic prevention and control to the "two sessions", "new infrastructure" and "new consumption", with the accelerated layout of 5G, big data, artificial intelligence,...
As shown in the figure,1. A diode D2 is added to the positive feedback of the op amp U1A, and the voltage of the voltage source V1 is adjusted so that the voltage of U1A's pin 3 exceeds the voltage of...
[i=s]This post was last edited by ljj3166 on 2021-6-6 17:50[/i]Weekend, a post
Let’s take a look at the design of the outdoor end device
Basic hardware framework, soul paintingI took a look at it, and...
ljj3166onsemi and Avnet IoT Innovation Design Competition
Disconnection detectionThe function of disconnection detection or no-load detection needs to be implementedThe implementation principle: By detecting the voltage drop of the input resistor of the char...
In the circuit shown in the figure, a 4 X 4 keyboard is connected to the P1 port. Assume: SO-S9 are numeric keys, with key values of 0-9, used to input data to the single-chip computer system; S10...[Details]
I used to use mega2560, and finally solved the watchdog problem, and the watchdog works normally. In the new project, the boss required that Mega328P also support watchdog. I thought it should be ea...[Details]
IEC61850 is an international standard for substation automation system structure and data communication. Its purpose is to enable electronic equipment (IED) from different manufacturers in the subs...[Details]
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Rationale
The core issue of using algorithms to solve motor NVH problems is to find the "key intermediate variable". This variable plays a decisive role in connecting the upper and low...[Details]
Improved differential amplifier circuit
In the differential amplifier circuit, increasing the resistance of the emitter resistor Re can improve the common mode rejection ratio. However,...[Details]
Hello everyone, welcome to Galaxy Digital. Friends who use Samsung phones must be familiar with an application called Expert RAW, which is a brand new camera application. Using this professional came...[Details]
Akamai shows organizations how to strengthen their network security September 17, 2021 - Akamai Technologies, Inc. (Akamai) (NASDAQ: AKAM), a global provider of solutions for securing and deliverin...[Details]
1. Characteristics of LED and LED lamps
With the further rapid and in-depth development of semiconductor lighting, LED has been widely used in many fields such as road lighting, indoor lighting, ca...[Details]
The integrated circuit industry is a national strategic emerging industry and an important foundation for the informatization of the national economy and society. In the past forty years, the field...[Details]
The Leeb hardness is calculated by the ratio of the rebound velocity of the punch at a distance of 1 mm from the sample surface to the impact velocity when the impact body of a specified mass impa...[Details]
Apple has stopped verifying iOS 15.4, the previous version of iOS released in early March, following the release of iOS 15.4.1 on March 31. Since iOS 15.4 is no longer verified, it is impossible to d...[Details]
For disaster relief operations or emergency medical services (EMS), time is more important than money because it is a matter of life and death. An ambulance equipped with a telemedicine system is ...[Details]
With the development of computer, network and communication technology, as well as the continuous improvement of multimedia video technology, the third generation of remote network video monitoring...[Details]
Central topic:
* Electrical system design
* Key inverter design technology
* System reliability design
* Laboratory test and real vehicle operation assessment
Solution:
* ...[Details]
Yan'an High-tech Zone Investment Promotion Team went to Chengdu and Wenzhou to conduct investment promotion inspection activities. From October 14th to 19th, Qin Li, member of the Party Working Commit...[Details]