After mounting the chips according to the circuit diagram, the voltage at VCC3V3 is not 3.3V, but 4.6V. After C46 is replaced from 22pF to 330pF, the voltage at VCC3V3 is 3.3V (the required voltage is...
[i=s]This post was last edited by sunboy25 on 2021-6-3 11:15[/i]I would like to ask if anyone has the reference for active filters in Chapter 3 of Circuit Design Based on Operational Amplifiers and An...
The national electronic competition is still difficult. Within the specified time, that is, 4 days and 3 nights, we need to make electronic competition questions with high standards and high requireme...
[i=s]This post was last edited by Yunhu Congbai on 2022-9-3 15:28[/i]Ask for forgivenessIn fact, I had already received the board a long time ago, printed out the chip manual, and read it many times.I...
I remember that the STC microcontroller has a chip that can be used for single-step simulation. I didn't expect Qinheng to be able to do it, so I tried it today and it works well.
It’s actually very s...
Diary accumulation month after month, water dripping wears away stone[Atria Development Board AT32F421 Review] - Peripheral Review
AT32F421 is a lightweight M4 core microcontroller. It has a high freq...
Overview
Tools: PC W5500EVB Net-SNMP software package Compilation environment: Keil4 & IAR Function: Simple LED control through network management protocol SNMP and basic control commands
1. Introd...[Details]
Practice controlling the registers related to external interrupts. The code is as follows: ;================================================== =================== ; Main.asm file generated by New P...[Details]
As the pace of life continues to accelerate, people hope to be able to keep abreast of the situation at home and control various devices at home even when they are at work or out. The continuous deve...[Details]
Requirements: P1.0 outputs a square wave with a period of 2ms, P1.1 outputs a square wave with a period of 5ms, and the duty cycle is 1:1. (The high and low levels are the same). The crystal frequenc...[Details]
1 Introduction CAN (Controller Area Network) was first proposed by Bosch of Germany . It is the most popular and commonly used bus in the automotive controller area network. Its main features are: ...[Details]
Mitsubishi PLC (Programmable Logic Controller) is a device widely used in the field of industrial automation. It controls machines or production processes through programming. In many applications,...[Details]
In most cases, 24C02 is used to store power-off data. In some situations where cost needs to be considered, the internal EEPROM can also be considered. This program introduces the use of the EEPROM i...[Details]
System structure and control principle Boost + full-bridge inverter and output LC filter is one of the most commonly used topologies for high-power programmable AC power supply. As shown in Figure...[Details]
According to the Ericsson Mobility Report November 2019, as the 5G ecosystem continues to develop, Ericsson expects the number of global 5G users to reach 2.6 billion in the next five years. 2019 w...[Details]
X-ray transmission, commonly known as "taking an X-ray", is a medical diagnostic technique that everyone is familiar with. X-rays are high-energy and can penetrate the skin, so taking X-rays i...[Details]
Introduction: Recently, Sakuu announced that it has begun construction of a lithium metal solid-state battery production test line, which will be completed by the end of 2021. After it goes into prod...[Details]
Both theoretical calculations and experimental data tell us that the propagation speed of light and electromagnetic waves in a vacuum is C=3X108 meters per second, which has been recognized by the wo...[Details]
Since October 2020, HMS Networks has been certified according to IEC62443-4-1:2018. The certification, performed by TÜV Rheinland, verifies secure product development lifecycle processes in industria...[Details]
Mitsubishi PLC FX3U series is a very popular small PLC with high performance, high reliability, ease of use, etc. In practical applications, remote I/O settings are one of the common requirements.
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Analog electronics
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