Recently I have seen some products that can swipe cards directly on the top of the screen. Aren't the bottoms of normal 5/7 inch screens made of metal? How can they swipe IC cards? Please give me some...
In this circuit, the antenna (spring) is connected to the base of the first transistor. When we place the antenna near an object excited by AC current, a small current is induced into the antenna due ...
Definition of freewheeling diodeA freewheeling diode is a diode that plays a freewheeling role in a circuit. For example, an ordinary diode 1N4007, if you use it in a circuit to play a freewheeling ro...
Challenges that 5G brings to the design of base station RF PA:
On the one hand, the linearization of PA is becoming increasingly difficult;
On the other hand, the requirements for PA efficiency are ge...
Today, complex systems use a wide variety of semiconductor technologies. From the deepest sub nanometer processors to analog I/O, we see the need to manage power for multiple voltages in the same pac...[Details]
In any
switching
power supply
design, the physical design of the PCB board is the last step. If the design method is not appropriate, the PCB may radiate too much electromagnetic inte...[Details]
ON Semiconductor ON Semiconductor's revenue will reach US$8.33 billion in 2022 and US$8.25 billion in 2023, a slight decrease of 0.9%. Automotive business revenue in 2022 will be US$3.36 billion,...[Details]
In the current embedded LINUX system development process, all engineers are tired of using two different debugging modes to debug the system kernel and application respectively. First, a JTAG debuggi...[Details]
简介:自动控制系统的综合性能在很大程度上取决于步进电机的精确度,细分技术可以显著改善步进电机的距角精度。利用细分算法控制AT89C51单片机输出具有一定时序的方波控制信号,经过TA8435芯片处理后输出相应的阶梯波来实现对步进电机的细分控制。本文重点就TA8435芯片的使用与控制进行详细介绍。 introduction The stepper motor is a control actua...[Details]
Speaking of buzzers, everyone is familiar with them. Buzzers are generally designed and implemented using single-chip microcomputers or special control boards. For those who are engaged in industri...[Details]
What is Automotive Grade? It means consistent reliability.
From the moment your car engine starts, it has to work in the sweltering summer heat and the cold winter nights. A cel...[Details]
Introduction: The solar controller designed here has stable performance, overcharge and overdischarge protection and temperature compensation. After testing, the system shows good control effect, whi...[Details]
Previously, many manufacturers produced a wide range of fairly standard
Li-Ion battery
products with a maximum charge voltage of 4.2 V ±1%. Therefore, most existing ICs for charging Li-Ion ...[Details]
Communication module: RS485 communication is implemented on a small board. Its communication circuit consists of a UART interface and an RS485 driver circuit. The UART interface is responsible for...[Details]
An "intelligent detection control circuit" for the water boiler is designed and manufactured using the AT89C205l single-chip computer chip. It can monitor the water level in the water tank and the ...[Details]
This week, I debugged the CAN of STM32 and collected some information from the Internet. Thanks to the original author for his selfless contribution.
Here are some key points:
1. CAN filter
As fo...[Details]
We’ve already seen that improving the efficiency of an electric vehicle’s powertrain can increase its range. Aside from purely mechanical solutions, such as using larger (or multiple) electric moto...[Details]