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Let's summarize the method of judging whether a MOSFET is good or bad. The basic principle is the working principle of MOSFET. Take IRF530 as an example. 1. Digital meter (+)-- DRAIN, (-...[Details]

In recent years, with the improvement of my country's overall economic strength, the people's material and spiritual life has been continuously improved, and the requirements for the working and livi...[Details]

O Introduction Hardness measurement is a traditional testing technology widely used in industrial production, especially in the material processing industry. Portable hardness tester is a more...[Details]

At the 2023 Global Energy Transformation High-level Forum held recently, major innovation platforms such as the National Clean Energy and Safety Emergency Technology Industrial Park and the Changping ...[Details]

Analysis of several online testing technologies for batteries 1. Reasons for battery failure and importance of detection Valve-regulated lead-acid batteries (VRLA) have been...[Details]

     For a long time, iPhone users have been unable to use a very thoughtful, convenient and practical feature on Android phones, that is, the display of Chinese holidays. 　　The iOS calendar only s...[Details]

A single-chip microcomputer is a type of microcomputer. Currently, there are 8051, AVR, ARM7, ARM9 and other series. Among them, "8051" is derived from Intel's MCS-51 series chips, but different manu...[Details]

The data amplification circuit is shown in the figure. The circuit consists of two operational amplifiers and multiple resistors . A1 and A2 should use operational amplifiers with high in...[Details]

On the evening of April 29, Unigroup Guoxin released its Q1 2021 performance report. In Q1 2021, the company achieved operating income of 952 million yuan, a year-on-year increase of 47.44%; net prof...[Details]

1. Cortex-M3 memory map The first 1GB of the storage area is divided into code area and SRAM area. The code area is connected using the optimized I-Code bus. Similarly, the SRAM area is connected u...[Details]

In April 2024, the BMW Group will present its new generation of BMW concept car, which will make its debut in China, at the Beijing International Auto Show. It is a member of the new generation of ...[Details]

Coffee making machines can make latte art patterns on coffee, robots can give live talk shows featuring "Li Bai" and "Du Fu", power inspection robots can handle high-risk operations, and bomb dispo...[Details]

Introduction256 -level grayscale LED dot matrix screens are increasingly showing their broad application prospects in many fields. This paper proposes a new control method, namely, bit-by-bit t...[Details]

ARM requires that the interrupt vector table must be placed in a continuous 32-byte space starting from address 0x00000000. The address of the interrupt vector defined by ARM9 in the vector table is a...[Details]

Preface The automotive industry is currently at a very challenging historical moment. With the ever-changing application scenarios such as electrification, intelligence, networking and sharing...[Details]