Optical communication applications often need to boost the +3.3V input power supply to obtain a set of positive and negative voltages, such as +/-20V. The common practice is to use two chips to genera...
[size=14px]MicroPython V2.0官方的路线图[/size][list]
[*]Python 3.5 support? and 3.6?
[*]full support for PYBD-SFx; see #4669
[*]initial Bluetooth support; see #4589
[*]add LittleFS; see #3847
[*]update CMSI...
Protel 99 SE and AD copper-free hole and copper-free slot design intuitive approach 1: Picture analysis, the pad wants to be made into a copper-free hole, but the pad is needed. Ask, why does the circ...
As shown in the figure, a general buck power chip has a BOOT capacitor, which actually forms a bootstrap circuit with a diode inside. The voltage obtained by charging C1 is used to power the MOS tube ...
Picking up the measured signal through the measuring instrument is a common data acquisition method in the design of the single-chip microcomputer forward channel. Usually, the interface circuit ob...[Details]
Working principle: The DC-DC switching power supply provides
the inverter
with its own low-voltage power, such as ±15V, 5V, etc. The main circuit adopts a single-phase full-bridge circu...[Details]
Recently, Xiaomi Intelligence completed a new round of investment of tens of millions of RMB. (Source: Tianyancha) It is reported that Xiaomi Intelligence was founded in July 2014 in Silicon Valley...[Details]
OFweek Cup · OFweek 2023 China
Robot
Industry Annual Selection (abbreviated as OFweek Robot Awards 2023) is jointly organized by OFweek, China's high-tech industry portal, and its authorita...[Details]
For a long time, my country has implemented "community-style collective heating" for hot water heating, and settled accounts based on the heating area, regardless of whether the user uses heat. Thi...[Details]
Jiwei.com reported on February 7 that according to digital blogger @长安数码君, the last EMUI version EMUI 11.1 is tentatively scheduled to be launched in March, and its kernel will be the Hongmeng kernel...[Details]
After reading Atom's STM32 IAP tutorial, I wondered what bootloader meant at first, and almost confused it with uboot. In fact, the "bootloader" of stm32 does not need to write assembly and link scri...[Details]
According to statistics from the Global Mobile Suppliers Alliance (GSA), as of January 2020, 61 commercial 5G networks have been deployed in 34 countries around the world, and 348 operators in 119 co...[Details]
Successfully capturing signals with sufficient fidelity is a major challenge in communication system design. Stringent standards and specifications require the selection of appropriate interface to...[Details]
Pulse response principle
A "perfect" square wave pulse contains the amplitudes of countless odd-order sinusoidal harmonic components, as shown in Formula 1:
Therefore, we can think...[Details]
Today, Qu Heng, general manager of Xiaomi Ecosystem, said on Weibo that starting today, a small number of Xiaomi watch users will receive grayscale upgrades, and from tomorrow to the 5th, Xiaomi watc...[Details]
The inverter and the external control circuit are mainly connected through external terminals, as shown in the figure below. There are two categories of external terminals: 1. Input signal term...[Details]
When using STM32L151, I encountered the problem that the GPIO_PinAFConfig (xx,xx,xx) function is invalid, and sometimes it causes the program HardFault. I used direct register operation to avoid this...[Details]
Foxconn Chairman Liu Yangwei said that in the next 3-5 years, Foxconn will not enter the semiconductor manufacturing industry, but in the packaging sector, the group's Xunxin has many years of experi...[Details]
LED dead light phenomenon may be encountered by packaging enterprises, downstream finished product enterprises, units and individuals who use it. The reasons are nothing more than two situations: ...[Details]
Analogue and Mixed Signal
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