Is it the parasitic inductance of the switch?Then I saw a circuit similar to RCD function in the PFC circuit. Is the black circle the RCD circuit? Why is it different from the flyback switching power ...
There is a spike after the rectifier bridge, which cannot be clamped by the varistor. It can be clamped when the phase is 90 degrees, but not when it is -90 degrees. Is it because the varistor cannot ...
Prepare to install the module with Python pip, prompt 'pip._vendor.requests.packages.urllib3.connection.VerifiedHTTPSConnection object
After searching for a long time, I felt that I couldn't find the ...
[i=s]This post was last edited by Yizuofenji at 2022-1-24 13:00[/i]1. Introduction
In the first post, we described the process of building a BLE environment and burning the official Demo directly into...
High-frequency clockBased on an external crystal, the internal crystal oscillator of ESP8266EX can generate the RF clock. This clock can be used to drive the TX and RX mixers. The crystal frequency is...
Due to time constraints, although it has not been completed yet and has not been done very well, I will write a summary here first and continue to improve it later! Experience of using NXP Rapid IoT: ...
The emergence of the world's earliest wearable device can be traced back to 1975, when Hamilton Watch launched the Pulsar calculator watch. This small product with a calculator chip became synonymo...[Details]
On November 22, LG Chem signed an MOU with the U.S. state of Tennessee, and will invest more than US$3 billion to build the largest cathode material factory in the United States.
At the si...[Details]
Microcontrollers are now overwhelmingly available, with a wide variety of types, which overwhelms developers. The development is also quite rapid, from the 4-bit and 8-bit microcontrollers in the 198...[Details]
When testing the 1MHz square wave on the DEMO board and adjusting the vertical scale to 50mV/div after automatic capture, the ground does not point to zero (center) but has a certain offset. What is ...[Details]
Recently, Musk announced that his company Neuralink is recruiting a second patient to receive brain-computer implants. The target population is patients with quadriplegia due to cervical spinal cor...[Details]
Schematic diagram and basic principle of digital tube Schematic I won't explain how it works. Fundamental Dynamic display is essentially to light up a single digital tube in turn to achieve the eff...[Details]
According to a report by Expert Market Research, the global machine vision market size reached approximately USD 10.88 billion in 2023.
The market is expected to grow at a compound annual growt...[Details]
Recently, Zhongqing Group and a team of scientists from Central South University signed a cooperation agreement on "deep collaboration in the energy storage industry chain" to accelerate the transf...[Details]
Industry insiders revealed that the prices of foldable phones, especially those in the Samsung series, have been falling rapidly recently. According to DigiTimes, following the launch of the Galaxy Z...[Details]
The forward and reverse rotation of the motor is a very important concept in the operation of the motor, which determines the direction of rotation of the motor. In practical applications, we often...[Details]
OFweek Cup · OFweek 2023 China
Robot
Industry Annual Selection (abbreviated as OFweek Robot Awards 2023) is jointly organized by OFweek, China's high-tech industry portal, and its authorita...[Details]
The calculators we talked about before were all based on C language. Next, let’s talk about a simple calculator based on assembly language. hardware design The display is still a digital tube, an...[Details]
Introduction: Students who have studied assembly know that when a single-chip microcomputer executes instructions, it executes them one by one in sequence. The same is true for C language, which exec...[Details]
Meitu Inc. recently released its 2020 annual report. Last year, the company's continuing operations achieved total revenue of RMB 1.194 billion and gross profit of RMB 794 million, an increase...[Details]
Analog electronics
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