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 three devices, dial-up modem, ISDN terminal adapter and xDSL, are subject to different losses in the actual telephone network when working. This article introduces how to test dial-up modem, IS...[Details]
On October 17, the press conference and technical salon of the Xinyao Yicheng · First China Automotive Chip Application Innovation Rally (referred to as "Innovation Rally") was successfully held in ...[Details]
The Information Science Research Institute of China Electronics Technology Group Corporation, China Merchants Securities Co., Ltd., and Beijing Guolian Wanzhong Semiconductor Technology Co., Ltd. sig...[Details]
Earlier, there were reports that the joint venture between LG Electronics and Canadian auto supplier Magna was "very close" to cooperating with Apple to produce the initial Apple Car. In response, Fo...[Details]
For hardware manufacturers with a huge user base, after-sales service is also an important source of profit. This is especially true for the relatively closed Apple. Previously, in an advance...[Details]
I. Overview
The brushless DC motor consists of a motor body and a driver, and is a typical mechatronics product. The stator winding of the motor is mostly made into a three-phase symmetrical star c...[Details]
The intelligent flexible production line is a production system that automatically completes all or part of the manufacturing process of a product by connecting a group of automatic machine tools a...[Details]
Voice ICs are generally divided into 4 audio output modes. However, we usually only see two. What are the four? They are: current DAC audio output mode, dual PWM direct push audio output mode, volt...[Details]
OmniVision launches 12.6V 7A fully integrated synchronous boost converter WD31089Q to help upgrade the experience of Bluetooth speakers In a busy life, some music can adjust the atmosphere. Portabl...[Details]
//This subroutine is used to exchange data between the PIC series microcontroller and the ferroelectric memory FM24C04
#define bitset(var,bitno) ((var)|=(1
#define bitclr(var,bitno) ((var)&=((1
...[Details]
Avalanche photodiode (APD) is a high-sensitivity, high-speed photodiode. When reverse voltage is applied, its internal gain mechanism can be activated. The gain of APD can be controlled by the ampl...[Details]
There are many registers, so I will not introduce them one by one. Please check the data manual for details.
This part mainly has 3 modules:
1 Basic Module
By setting the frequency division of ...[Details]
1. Special applications of positive and negative voltage fixed integrated regulators
Many electronic instruments and operational amplifiers require positive and negative symmetrical power supplies....[Details]
The cross-strait Apple supply chain has unprecedented cooperation. Pegatron's board of directors yesterday (28) decided that its important subsidiary, Caseson, a casing manufacturer, Rikai, would inc...[Details]
CAN bus (Controller Area Network) is a local area network based on broadcast technology, which is widely used in automobiles, industrial automation, medical equipment and other fields. However, in ...[Details]
PCB Design
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