If the voltage is input from point A and the circuit is disconnected and connected through an LED, what is the voltage at point B? I am a little confused...
Is there any level conversion chip that can directly convert 8-way 24V signal to 5V or 3.3V? I don't want to use optocoupler because it takes up too much space....
I wish you all a happy new year. In the new year, you will not be caught for slacking off, your code will not have any bugs, your computer will not freeze, and you will not miss a card after get off w...
As shown in the picture, this is the HDMI signal on the CPU side .My questions:
1. What are these resistors for?
Statement 1: Impedance matching Statement 2: Static electricity resistance2. Should the...
Compiled from EEWORLDONLINE PCB manufacturing is the process of transforming a circuit board design that meets design specifications into a physical PCB. It is usually outsourced to a contract manu...[Details]
Development platform: iTOP-4418 development board System: Ubuntu 1. TF card read and write speed test The requirements for TF cards when burning Ubuntu are relatively high. Many old cards cannot bu...[Details]
We have already introduced setting the USB device address. What should we do next? After getting the device address, the host controller will send it again to get the device descriptor that has been r...[Details]
1. Bus A circuit is always made up of components connected by wires. In analog circuits, wiring is not a problem because the devices are generally in serial relationship and there are not many wir...[Details]
1. Bandwidth requirements
The shaft voltage of the variable frequency motor is generated by the PWM output of the inverter. Its signal spectrum is similar to the spectrum of the PWM wa...[Details]
Use a single-chip microcomputer to realize a digital clock. For time display, a 1602 LCD and a C51 single-chip microcomputer are used. Then a timer is added to dynamically update the LCD time dis...[Details]
High power density high-voltage bus converter module effectively supports heavy-duty tethered drones and long-lasting endurance On June 5, 2023, Beijing News, the SkyCells-T 15kg 200m heavy-duty te...[Details]
For beginners, the memory allocation of microcontrollers is often the most troublesome. Many people have learned microcontrollers for several years and do not know how the memory usage inside the mic...[Details]
Recently, technicians from the Key Laboratory of Industrial Internet of Things and Networked Control of the Ministry of Education at Chongqing University of Posts and Telecommunications demonstrated ...[Details]
1 Introduction With the continuous development of information technology and the increasing popularity of computer applications, high-tech equipment has higher and higher requirements for power suppl...[Details]
How to measure the quality of the motor Use one test lead to ground and the other to measure the motor starting. Adjust the gear of the multimeter to the ohm gear and measure the DC resistance at the...[Details]
At TSMC's annual technology seminar, the characteristics of the future 3nm process node were introduced in detail, and a roadmap was planned for subsequent 5nm products, including the N5P and N4 proc...[Details]
The H-bridge is a classic circuit for driving a DC motor in a user-defined manner, such as forward/reverse direction or RPM controlled by PWM assistance of four discrete/integrated switches or electr...[Details]
Xiaomi offers cost-effective smartphone models on the market every year. Previously, these products were divided into two series; the economical Redmi series and the high-end Mi series, and the "Mi...[Details]
CNC systems (computer numerical control systems) and NC systems (numerical control systems) are two types of automation control systems commonly used in modern manufacturing. They are similar in ma...[Details]
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