stm32/boards/pllvalues.py: Relax PLLQ constraints on STM32F413 MCUs.
stm32/powerctrl: Support using PLLI2C on STM32F413 as USB clock source.
stm32/powerctrl: Allow a board to configure AHB and APB clo...
The battery voltage is pulled down, the BAT battery voltage is 4.21V,
When MCU_CTL is at a low level (short-connected to GND and then released), Q5 and Q1 are turned off, and the BAT_OUT output is alr...
4V350W dual-tube forward, the customer requires EMI to pass CLASS B with a margin greater than 6dB, two levels of common mode inductors T20_10_10 are added in front, and now both conduction and radiat...
There was a problem with the project recently. After changing the program, the compilation was not correct.It's as if the program has not been modified, so it runs incorrectly.
Can any experts please ...
bq27411-g1 (single-cell fuel gauge) bq27541 (single-cell fuel gauge) bq27546-g1 (single-cell fuel gauge) Which of these three fuel gauges from TI are you familiar with? For example, after replacing th...
Using ordinary PWM IC + logic chip + 2 half-bridge drivers to achieve 4-switch buck-boost instead of LM5175 is too expensive. Currently, the production line uses hundreds of pieces every day.This cont...
Huawei will release a new generation of foldable screen phone - Mate X2 on February 22. Earlier rumors said that the flexible screen panel of the phone was exclusively supplied by Samsung Display. Bu...[Details]
introduction
With the continuous development of liquid crystal displays, higher requirements are put forward for display contrast. Using vertically arranged liquid crystal displays, namely VA ...[Details]
The probe is a signaling switch for the CMM to touch the measured parts. It is a key component of the CMM. The accuracy of the probe determines the measurement repeatability of the measuring machine. ...[Details]
The camera shutter determines how and when light is recorded during each exposure. Today, FILIER will introduce to you how Sony Pregius series global shutter CMOS sensors provide clear and distorti...[Details]
On November 3, the 2020 National Science and Technology Awards Conference was held in Beijing. Academician Wang Dazhong, an internationally renowned nuclear energy scientist, was awarded the countr...[Details]
The MAX17129/MAX17149 are high-efficiency drivers for white light-emitting diodes (LEDs). They are designed for LED arrays as light sources for small to medium-sized liquid crystal displays (LCDs)....[Details]
The oscilloscope is an instrument that is frequently used by those of us in the electronics field when doing experiments and projects. Here we will briefly introduce the issues that you should pay ...[Details]
We often use the term "black technology" to describe new technologies that are beyond comprehension. As a car fan, how many of the following 8 black technologies in the automotive field do you know? ...[Details]
Chen Anwei, Chairman and Party Secretary of State Grid Anhui Electric Power Co., Ltd.
Chairman Kou Wei emphasized at the company's second quarter work conference in 2019 that the construction ...[Details]
On May 29, at the 2021 Chinese and Foreign Famous Enterprises Sichuan Investment Promotion Conference and Project Cooperation Agreement Signing Ceremony, AVIC Lithium Battery and Chengdu Economic D...[Details]
SOPC is a more flexible and efficient SOC solution that replaces ASIC with PLD. SOPC is designed through design methods based on IP cores and hardware description languages, and with the help of ED...[Details]
Note: In 51 single-chip C language programming, in order to improve the portability of the program, it is necessary to program with aliases of portable variable types.
Save the following content to...[Details]
On August 3, the Tianneng Lithium Battery and Haiquan Automobile 10,001 power battery system off-line ceremony with the theme of "Energy Gathering and Coexistence" and the signing ceremony of the T...[Details]
Single-chip microcomputers are widely used in various fields, and there are many kinds of button designs for human-computer communication. Different design methods have different advantages and disad...[Details]
Data from the World Health Organization (WHO) show that the number of deaths from traffic accidents is increasing every year worldwide, while the number of deaths from traffic accidents in Europe i...[Details]