Compound voltage overcurrent protection, it is a voltage compound element composed of a negative sequence voltage relay and a low voltage relay connected to the phase voltage. As long as one of the tw...
1、watchdogtimer(WDT_A)
Watchdog timer?
Watchdog Timer 32-bit timer, can be used as a watchdog or as an interval timer.Before you watch, ask yourself a few questions
a. Does the watchdog depend on the ...
Below 15M, the same frequency input 1V10M output 0.25V20M is no problem, but above 15M, the amplitude will become larger (the frequency is correct). I want to ask what is the reason, waiting online, u...
Most people probably choose to travel. What great weather, what a great 70th anniversary. Look around and feel the beauty of our motherland, the popular tourist attractions, and the endless crowds.
It...
TGF4042 has the function of a noise generator. The manual states that its noise bandwidth is 62.5MHZSet the function generator to noise mode and set it to 200mvPP
Observe the noise and spectrum... Usi...
Even before the threat of terrorism became a major concern, many public and private organizations began installing video security systems in critical infrastructure. Video security provides the vis...[Details]
In order to obtain higher precision data acquisition capabilities, it is a challenge for test and measurement equipment designers and engineers to measure small signal changes when high common-mode v...[Details]
With the enhancement of environmental awareness, electric vehicles have entered our families in large numbers and have become an indispensable means of transportation for some people. How to preve...[Details]
According to Fierce Wireless, today the Federal Communications Commission (Federal Communications Commission) voted unanimously to reject China Mobile USA's application to provide telecommunications ...[Details]
What is the principle and structure of liquid crystal display?
Liquid crystal is a substance that is both like a liquid (can flow) and like a crystal (has the optical properties of a cryst...[Details]
Memory Bank Design and Control
S3C44B0X has 6 groups of ROM/SRAM (ROM0 group is Boot ROM) and 2 groups of ROM/SRAM/FP/EDO/SDRAM. System management in S3C44B0X can control the access time and data ...[Details]
The linear regulator is one of the longest-standing and most widely used integrated circuits in the electronics industry and has undergone several significant performance improvements since its i...[Details]
Recently, according to foreign media reports, a 19-year-old Iowa girl, Victoria O'Connor, successfully recovered her stolen car with the help of the "Find My iPhone" feature of the iPhone. It...[Details]
Below is the circuit connection diagram. I have done a whole test myself and it is definitely usable.
Due to limited space, the complete C51 code download:
http://www.51hei.com/f/12864wu...[Details]
Huawei held a performance conference for the first half of 2019 in Shenzhen, and Chairman Liang Hua released Huawei's performance and operating conditions for the first half of 2019. He said that Hua...[Details]
1. Float type liquid level transmitter
The float type liquid level transmitter changes the magnetic float ball into a float, and the liquid level sensor is designed based on the Archimedes buoyancy...[Details]
1. Introduction to PWM Pulse Width Modulation (PWM) is a very effective technology that uses the digital output of a microprocessor to control analog circuits. Simply put, it is the control of pulse ...[Details]
The inductor of a switching power supply is an important component of a switching power supply device. It works on the principle of electromagnetic induction. Its function is to block AC and pass DC,...[Details]
On May 21, Xiaomi’s official Twitter account announced that the Redmi Note 8 2021 model will be released soon. Xiaomi introduced that the global sales of Redmi Note 8 have exceeded 25 millio...[Details]
CAN bus (Controller Area Network) is a communication protocol used in the automotive and industrial automation fields. It has high reliability, real-time and flexibility, and is widely used in auto...[Details]