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With the widespread use of electronic control units (ECUs) in automobiles, the degree of automobile electrification is getting higher and higher. Although the increase in electronic control systems ha...[Details]

To use an 8M crystal oscillator, you need to modify two macro definitions based on the official example: 1) Change PLL_M to 8 in systm_stm32f40x.c 2) Change HSE_VALUE to 8000000 in stm32f40x.h, as fo...[Details]

　　In the previous section, we learned about the data types supported by the KEIL C51 compiler. How are these data types used in the definition of constants and variables? What is the meanin...[Details]

In recent years, radio frequency microelectronic system (RF MEMS) devices have attracted widespread attention for their small size and low power consumption. In particular, the phase shifters and a...[Details]

Frequency Converter Fault Codes PG failure is also a problem we often encounter during use. Generally, open-loop control is not allowed during lifting. main reason: 1. PG connection ...[Details]

1. A700/F700 inverter related parameters l Operation mode: Parameter Pr79=0 l Communication station number: Parameter Pr331=0 l Communication speed: Parameter Pr332=96 l C...[Details]

1 Introduction With the rapid development of science and technology and economy, people's concept of home has changed from simple living to focusing on humanized housing needs, such as safe, comforta...[Details]

3. Packaging test comparison 　　1. Two LED packaging with different heat dissipation structures 　　In order to ensure comparability, the same materials (same chips, die-bonding glue, gold wire, sil...[Details]

With the development of the information age and the advancement of science and technology, intelligent technology has gradually developed in various fields. Key technologies in the intelligent pr...[Details]

The typical RCD absorption circuit is shown in the figure: The following figure shows the work analysis process of RCD absorption: t0-t1: Forward conduction time. When Vds is slightly le...[Details]

Zigbee wireless communication and Linux embedded operating system are often contacted by electronic people. Here we have designed a CMU controller based on the ARM chip S3C2440 as the hardware platfo...[Details]

With the rapid development of the electronics industry, display technology has made great progress in the 1960s, and displays such as PDP and LCD have been introduced one after another. In the 1980...[Details]

        With the support of Zhejiang Natural Science Foundation, Zhao Shilong's team from China University of Metrology conducted in-depth research on rare earth-doped oxygen-fluorine microcrystallin...[Details]

One line and one meter, this is traditional electricity. One network, one mobile terminal, real-time monitoring of line conditions, free choice of electricity bill payment, and popularization ...[Details]

Recently, according to official channels, Geely will officially release the new generation of Thor electric system on October 30; the thermal efficiency of the hybrid system exceeds 46%. In additio...[Details]