[i=s]This post was last edited by qwqwqw2088 on 2020-11-10 11:21[/i]Common mode radiation is caused by voltage drop in the grounding circuit (as shown in the figure below). Some parts have high potent...
Chapter 3 of the book "Operational Amplifier Parameter Analysis and LTspice Application Simulation" is about special amplifiers, including four types of special amplifiers: instrumentation amplifiers,...
There are generally two ways to increase the transmission rate of wireless transmission. One is to increase the spectrum utilization rate, and the other is to increase the spectrum bandwidth. In wirel...
Different efficiency
Different voltages
Different power
Different frequencies
Different uses
Different manufacturers
Different materials
BroadbandNarrowbandCommunicationDot frequency...
1. Background
I have done a project on STM32 low-power signal acquisition before, using the STM32L031 microcontroller. The project requirements are as follows:
The device is powered by a battery, dete...
Apple uses OLED displays across the entire iPhone 12 lineup and is expected to continue using such panels in the upcoming iPhone 13 lineup. A report from Omdia claims that iPhone OLED panel shipments...[Details]
1. PCIE 3.0 and PCIE 2.0
The main difference between PCIE 3.0 and its predecessor PCIE 2.0 is that the rate is increased from 5GT/s to 8GT/s. In order to ensure data transmission density, DC b...[Details]
The traditional IF digital quadrature demodulation system has limited chip selection and a significant increase in cost. Therefore, a new IF digital quadrature demodulation
system
structure is ...[Details]
1 Introduction
Since the realization of chaotic synchronization in electronic circuits, chaotic encryption has become the hottest research field in information security and chaotic application...[Details]
The parameter of the SysTick_Config(SystemFrequency / 10) function is the value of the systick reload timer. The systck counting frequency is 72000000 times per second, so 7200000 times is 1/10 s...[Details]
OPPO announced today on its official Weibo account that the new Find X5 flagship series will use the Qualcomm Snapdragon 8 mobile platform and will be the world's first to launch the MediaTek ...[Details]
At present, in the research and development of liquid flow energy storage, perfluorosulfonic acid membrane is the most widely used proton exchange membrane. In the early liquid flow energy storage ...[Details]
Driven by the "Made in China 2025" action plan and the "Industry 4.0" concept, the automotive industry, as a key area for implementing intelligent manufacturing, is actively trying new flexible manuf...[Details]
Recently, the China Automotive Power Battery Industry Innovation Alliance (hereinafter referred to as the "Battery Alliance") released monthly power battery data for February this year. Data show tha...[Details]
Currently, several major power battery manufacturers are accelerating their capacity expansion, and there is a large space for battery demand. If the capacity of power battery companies still cannot ...[Details]
On August 12, the Financial Times reported that Continental AG, one of Europe's largest automotive industry suppliers, is considering splitting up the company by listing its core automotive busines...[Details]
By using the Zener breakdown characteristics of the voltage regulator tube, a high-frequency signal with a frequency of hundreds of megahertz can be obtained. The circuit is shown in the figure. The ...[Details]
Many switching power supply chips use the formula Vout=(1+R1/R2)Vref to set the output voltage (Vref is the reference voltage, R1 and R2 are sampling resistors , and R2 is grounded). As shown in Figu...[Details]
I recently worked on a project, in which a part of the internal part of the stm32 is used to store my own code, and a space is opened up to store the FPGA code. Every time the machine is turned on, t...[Details]
On November 4, the reporter learned from Hefei Power Supply Company that the functional application of Hefei's virtual power plant platform is constantly deepening. By vigorously expanding access reso...[Details]