BQ25618/9 is a three-in-one (protection, charging and boost) IIC control switch charging chip specially developed by TI for TWS earphone charging case.
BQ25618 and BQ25619 have the same specifications...
I often use chips from foreign semiconductor manufacturers at work, but with the rapid rise of domestic chips, I am looking forward to having the opportunity to experience domestic chips up close. Thi...
How is impedance matching determined in a circuit? When I looked at some circuits, they said that the impedance matching resistor is 50Ω, and some are 75Ω. I looked up information online, but I still ...
1. Schematic diagram We know that a speaker or buzzer will make a sound when a fluctuating current is added to its two ends. To generate sound, the hardware circuit of a single-chip microcomputer is r...
On June 2, Huawei held a launch conference for the Hongmeng operating system and Huawei's full-scenario new products. The long-awaited Harmony OS 2.0 was officially launched, and now some users of th...[Details]
Recently, the new iron-lithium battery technology released by GAC Group has attracted widespread attention in the industry. The technology is named as a breakthrough composite battery technology - a ...[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]
STM8 has a maximum of 32 interrupt systems, and the interrupt processing is similar to the cortexm series chips. First, each interrupt vector is solidified inside the system, and the user needs to wr...[Details]
Standard measuring tools such as micrometers or calipers are commonly used "tools" for measuring flat and parallel features or inner/outer diameters of workpieces. However, when measuring workpieces ...[Details]
Freescale's MC9S08JM16 series MCU is a member of the low-cost, high-performance 8-bit HCS08 product family. All MCUs in this family use the enhanced HCS08 core and have a variety of modules, memory...[Details]
Jide announced that it has officially established a cooperative relationship with BAIC Motor, and will equip its BEIJING brand models under development with digital car keys, providing support to BAI...[Details]
This article will continue to introduce the power consumption calculation method of brushed motor drivers. In the previous article, the typical driving method of brushed motor drivers, constant vol...[Details]
Not long ago, OPPO held a new product launch conference and officially launched the new generation of Reno series mobile phones. At the press conference, in addition to introducing new features of th...[Details]
The wheels are rolling, the music is flowing, what's more satisfying than loading a big theater into your car? On April 17, 2023, Huawei's nova11 series and full-scenario new product launch confere...[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]
On August 3, CATL and Fengfei Aviation signed a strategic investment and cooperation agreement. CATL invested hundreds of millions of dollars exclusively and became a strategic investor of Fengfei ...[Details]
Digital display instruments are generally composed of three parts: analog-to-digital conversion, nonlinear compensation and scale conversion. It takes electrical signals as input and directly display...[Details]
The charging solutions for TWS earphones are also constantly evolving towards higher efficiency, longer standby time, and higher integration. Prisemi has seized this market trend and launched the h...[Details]
We have conducted a comprehensive inspection of the safety quality and equipment configuration of the energy storage project. No abnormalities have been found so far, and it can be put into operation ...[Details]
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