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Many electronic products are tested at a few seconds per automated test, and the system
DC
power supply can account for a significant portion of this time, so it is worth paying attentio...[Details]
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On April 9, the "Announcement of the Shanghai Science and Technology Commission on the First Batch of Technology-based SMEs to be Included in the 2021 Database" was released, with a total of 2,457 co...[Details]
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0 Introduction
The actual frequency value of the quartz crystal oscillator is affected by factors such as manufacturing process, device aging and external temperature, and there is a devia...[Details]
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This is the signal generator class project I made. The schematic diagram was drawn with proteus and written in C language with keil4.1. The simulation schematic diagram is as follows The microcontr...[Details]
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The latest research from Strategy Analytics’ IoT Strategies service indicates that IoT cellular device sales will transition to 5G, the primary air interface, by 2025. Strong growth from projects in ...[Details]
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According to reports, Intel released its third quarter financial report for fiscal year 2021 today. The report shows that Intel's third quarter revenue was US$19.192 billion, a 5% increase from...[Details]
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In order to improve system communication efficiency and reduce costs, all current automotive designs use a large number of serial bus communication protocols. I2C and SPI protocols are commonly use...[Details]
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summary
This article describes the correct system-level test method for evaluating Controller Area Network (CAN) transceivers. The advantages of this test method are explained by s...[Details]
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1. Physical indicators
Pixel center to pixel pitch (dot pitch) The distance between the centers of adjacent pixels. (Unit: mm)
Density (dot count): The number of pixels per unit ar...[Details]
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When developing STM32, I encountered some simple tasks that require timing, such as delay, etc. The most convenient one is the systick it provides.
Systick was originally designed to provide a tickin...[Details]
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On November 12, at the opening ceremony and plenary session of the 31st China Society of Automotive Engineers Annual Conference and Exhibition, Li Jun, academician of the Chinese Academy of Enginee...[Details]
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This article mainly introduces the application of AC-DC conversion technology and AC-DC-AC-DC conversion technology, namely rectification circuit and switching regulated power supply.
The powe...[Details]
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1. The forward and reverse control method of the inverter
There are two main ways for the inverter to achieve forward and reverse rotation of the motor: external control and internal control.
...[Details]
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1. Details In the previous lecture, we know that the initial value of the "16-bit variable" synthesized by TH0 and TL0 must be at least 0 and cannot be a negative number. So we have to satisfy: 6...[Details]
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CH451
// AT89C51 C language program
//Web:http//winchiphead.com
//Author: yhw 2003.7
#define CH451_RESET 0x0201 //Reset
#define CH451_LEFTMOV 0x0300 //Set the movement mode -
left shift#define ...[Details]
RF/Wirelessly
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