This article discusses the PCB layout of a power supply circuit that generates a regulated 3.3 V rail from a small solar cell. My goal in this project was to create a very simple, very compact circuit...
The number of 3G mobile phone users worldwide exceeds 100 million 2006-6-28 According to data released by the Universal Mobile Telecommunications System (UMTS) Forum on June 13, the number of third-g...
1. The bq24650 output voltage is abnormal and cannot be chargedNow I have a problem. The connection of bq24650 is as shown in the figure. The setting is 6V input and 4.2V output. But if the input volt...
When starting a new design, most of the time is spent on circuit design and component selection, and the PCB layout and routing stage is often not considered carefully due to lack of experience.
Failu...
The previous National College Student Electronic Design Competition, the National Vocational College Student Vocational Skills Competition, and the Freescale Cup National College Student Intelligent ...[Details]
Recently, Li Bin, chairman and CEO of NIO, said in an interview with the media that it is not difficult to develop self-driving chips, which is easier than mobile phone chips. Li Bin's words have ...[Details]
The HID class is a common method in USB applications. By modifying the JOYSTICK application of the STM32 USB firmware library V4.0, we implement a two-way USB communication. 1. Transplant the STM32 s...[Details]
IT Home reported on November 29 that the latest data released by market research firm CINNO Research showed that among the top five brands in the Chinese smartphone market in October this year, ...[Details]
Taiwan is tightening the channels for local talents to work in mainland China, especially in the chip field. Recently, Taiwan’s Ministry of Labor issued a notice prohibiting recruitment platforms and...[Details]
Hydraulic equipment driven by three-phase asynchronous motors has been widely used in production practice due to its many advantages in operation, and more and more research has been carried out on th...[Details]
I have been studying the ADC sampling function of STM32F4 recently. I encountered some problems in the process. I wrote them down for future reference. There are many different library functions betw...[Details]
Today I will post the minimum working circuit of the most commonly used 51 single-chip microcomputer and explain the specific circuit functions.
Here we take the 89c5x microcontroller as an example...[Details]
International New Energy Network News: Tibet, located on the Qinghai-Tibet Plateau, known as the "Roof of the World", has the highest total solar radiation value in China. It is known as the place ...[Details]
According to foreign media reports, Vitesco Technologies, the powertrain business of Continental, presented for the first time a highly cost-effective and compact hybrid transmission solution with in...[Details]
TSMC has made a major breakthrough in its 2nm process, and its R&D progress is ahead of schedule. The industry is optimistic that its risk trial production yield will reach 90% in the second half of ...[Details]
Although Apple CEO Cook has been questioned by the US antitrust department, he has refused to admit that Apple has monopolistic behavior. Even if the App Store has a 30% "commission", it is considere...[Details]
According to the US iPhone sales data for March shared by Consumer Research Intelligence Partners (CIRP), the 5.4-inch iPhone 13 mini is still unpopular with customers. Of all the iPhone 13 model...[Details]
"my country is expected to achieve 600Wh/kg oxide/polymer composite electrolyte solid-state batteries within 1-2 years."
Recently, Chen Jun, an academician of the Chinese Academy of ...[Details]
What is the conversion efficiency of a photovoltaic inverter? In fact, the conversion rate of a photovoltaic inverter refers to the efficiency of the inverter in converting the electricity generate...[Details]