Conduction and radiationElectromagnetic interference (EMI), referred to as EMI, is divided into two types: conducted interference and radiated interference. Conducted interference is mainly the interf...
BLE ultra-low power voiceprint door lock
Author:xujinxi1. Project Background
The RSL10 Bluetooth module provided by OnSemi is the smallest Bluetooth low-power module in the industry. It also has the b...
xujinxionsemi and Avnet IoT Innovation Design Competition
(1) The role of battery service:
It can detect the battery power status in real time and remind users to replace or charge the battery in time.
(2) Implementation principle:
If you have some basic kno...
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Question 1. LM5007 usage issuesAccording to the reference circuit in the datasheet, the LM5007 30V to 12V circuit is used to power the 6 gate drivers. When the gate driver is not working, the circuit ...
In recent years , the RISC-V ecosystem has been thriving , and many industry giants have made plans . A number of commercial IPs and supporting integrated development environments for RISC-V cores hav...
Design requirements: 1: After power on, the two-digit digital tube displays 88
2: Single-click the button, the countdown starts from 20 seconds, and the speaker sounds when it reache...[Details]
Security and fire alarm systems are designed to operate within specific current and voltage ranges. If the voltage and current exceed the normal range due to short circuits, transient overvolta...[Details]
1 Introduction
The automotive electronics industry has undergone tremendous changes in the past decade . Initially, only a few ECUs were used in cars, but now some luxury cars have more than...[Details]
According to foreign media reports, research reports show that due to the coronavirus epidemic, China's smartphone sales may fall by 30-50% in the first quarter of this year. Chinese smartphone mak...[Details]
The most obvious change in transistor technology over the past 75 years has been how much we can make. As these charts show, reducing the size of the device was a huge effort, and a very successful o...[Details]
In order to obtain the Bluetooth trademark, Bluetooth product manufacturers must submit their Bluetooth products to BQTF (Bluetooth Certification Test Facility) for testing, and send their test result...[Details]
According to foreign media reports, as part of the strategy of using robots to implement the "Mobility of Things" ecosystem, Hyundai Motor Group of South Korea will cooperate with Smart Optical Senso...[Details]
According to a new report from The New York Times, Apple's App Store rankings generally put its own iPhone and iPad apps at the top and Apple often directs customers to download its own apps, while a...[Details]
The PCI bus has the advantages of supporting multiple peripheral devices, being independent of the processor, and having fast data transmission. It has been applied to various occasions such as P...[Details]
Abstract: A solution to the communication problem between two microcomputer serial ports and the HPI (Host Port Interface) port of the DSP processor (TMS320VC5402) is proposed. This solution use...[Details]
Introduction The wavelength of infrared radiation is about 0.77 to 1 000 pm, and different bands of infrared radiation have different applications. From infrared guided missiles and infrared ima...[Details]
In fact, there are not many software required for microcontroller programming. I have read a lot on the Internet, such as protues simulation, Labview, Pycharm, etc. In fact, there is no need to insta...[Details]
The typical fault troubleshooting listed below is for reference of maintenance personnel.
When the computer is turned on, the indicator light is off and there is no screen display
Mainte...[Details]
Active PFC generally appears in dual-tube forward and higher-end topologies . Let's talk about this very popular dual-tube forward + active PFC + 3.3V single magnetic amplifier topology. Typical tw...[Details]