I'm asking this for a friend. A large number of CPU fans did not rotate during factory production. The voltages of CT9 and CT10 of the defective boards were 1V and 0.4V respectively (the voltages of C...
I recently designed a pipelined ADC and found that the speed of the sample-and-hold op amp is not enough. What is the relationship between the settling time, UGB and phase margin? Where can I find mor...
Microwave communication is the communication using microwaves, electromagnetic waves with wavelengths between 0.1 mm and 1 m. Microwave communication does not require solid media. Microwave transmissi...
Live Date: April 12, 2017 Topic: TI's Latest Bluetooth Technology On-site Training Replay: https://training.eeworld.com.cn/TI/video/9180 https://training.eeworld.com.cn/TI/video/9180 On-site Q&A Recor...
The newly made board has 3 serial ports, and serial port 1 is used as a debug port. Now I don't want to use serial port 1 as a debug output port, but use it as a general serial port. But there is a pr...
1. The main indicators of common car inverter products on the market Input voltage: DC 10V~14.5V; output voltage: AC 200V~220V±10%; output frequency: 50Hz±5%; output power: 70W~150W; conversion effici...
introduction
1 The significance of using RTOS on MSP430
It is understandable that it is meaningless to use RTOS on MSP430. Because the hardware resources of MSP430 are limited (for exampl...[Details]
The Mobile Industry Processor Interface (MIPI) Alliance is an organization responsible for promoting the standardization of software and hardware in mobile devices. It has released the D-PHY specif...[Details]
This paper designs a dot matrix LED text display screen that is easy to update, expandable, and low-cost. The way to reduce costs is
① Use the Bluetooth data transmission function of mobile ph...[Details]
1 Introduction
Ultrasonic waves have strong directivity, slow energy consumption, and can propagate over long distances in a medium, so they are used for distance measurement. Ultrasonic detec...[Details]
PV inverter manufacturer SMA has launched its first DC arc fault circuit interrupter (AFCI) PV inverter and has received UL certification.
The new SunnyBoy AFCI inverter models include 3000-US...[Details]
1 Introduction
There have been many studies on the detection and protection of power grid short circuit and line fault. The short circuit, overload and overvoltage protectors on the market have ...[Details]
Experimental tasks
A DS18B20 is used to form a temperature measurement system. The temperature measurement accuracy reaches 0.1 degrees. The temperature range is between -20 degrees and +50 de...[Details]
Single-chip microcomputers are widely used because of their small size, powerful functions and low price. This article introduces the method of designing a micro electronic piano using the AT89C51 sin...[Details]
In 2012, more than half of the cars in the European, Japanese and American car markets will be equipped with color displays, navigation systems, satellite communications and other in-vehicle infota...[Details]
At present, the traffic congestion in cities is quite serious. According to relevant news reports: In China, the traffic congestion has expanded from megacities such as Beijing, Shanghai, and Guangzho...[Details]
Spatial Division Multiplexing (SDM) MIMO processing can significantly improve spectrum efficiency and thus greatly increase the capacity of wireless communication systems. Spatial Division Multip...[Details]
LED light sources have many environmental advantages, but early products still have certain technical bottlenecks in heat dissipation and high brightness design that cannot be broken through....[Details]
With the rapid development of the national economy, lifting and hoisting operations are used more and more frequently and widely in various fields of economic construction. China has continuously expl...[Details]
a. Keep the battery clean, wipe off the spilled electrolyte, contaminated dirt and dust in time; keep the poles and terminal clamps clean and in good contact, and apply vaseline or butter to preven...[Details]
Analog electronics
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