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AC frequency conversion is actually a three-phase AC motor that changes its speed by changing the frequency. When the power supply frequency is high, the motor speed is fast, and when the power sup...[Details]

　　1. Don’t be greedy for too many types of microcontrollers 　　There are many manufacturers of single-chip microcomputers, and there are many types. For example, there are as many as 500 types of PIC ...[Details]

Overload is one of the faults that causes the inverter to trip frequently. Overload faults include frequency conversion overload and motor overload, which may be caused by too short acceleration ...[Details]

One is to find a way to reduce the value of the reverse transmission admittance yre of the transistor itself. The second is to try to eliminate the reverse action of the transistor from th...[Details]

The situation in which lithium iron phosphate batteries are the "big brother" and ternary batteries are the "little brother" has lasted for three years in the Chinese market. Moreover, the market a...[Details]

Today (23), according to Huawei's official website, the Huawei Kunpeng Computing Industry Development Summit was held in Beijing. Huawei's rotating chairman Xu Zhijun said that in order to support ...[Details]

With the advancement and popularization of Internet of Things technology, the realization of smart home system has gradually become easier. Smart home can greatly improve people's quality of life, th...[Details]

After ASUS Zenfone 7 was exposed on Xianyu, the phone was exposed again by digital blogger @顺顺数码pro, and the leaked photos are clearer this time. It is confirmed that ASUS Zenfone 7 will use a rotati...[Details]

Preface 　　SCR rectifier devices have been widely used in power systems and in all walks of life in modern industry. For example, in the metallurgical industry, it is used in metal smelting; in the ...[Details]

#i nclude #i nclude #i nclude #i nclude #i nclude #pragma NOAREGS //STC ISP_V2.0 PCB The crystal oscillator is 18.432MHz #define WdtTime_71_1mS      0x30 //71.1mS #define WdtTime_141_...[Details]

For those familiar with conventional engines, the look under the hood of a pure electric vehicle (EV) is a fascinating sight (see Figure 1). The main difference, of course, is that a pure EV does not...[Details]

Recently, Microchip held its annual seminar on the occasion of the 2019 China Optical Network Seminar. This is the ninth consecutive year that Microchip has participated in this seminar. In these nin...[Details]

Main circuit of active filter   Figure 1 Main circuit of active filter  Active power filters are generally designed as voltage source PWM inverters. By controlling the fully controlled switchi...[Details]

If you need to accurately test the parameters of a supercapacitor, you need to build a test platform, have a data acquisition system, and have data processing capabilities. If you have nothing and st...[Details]

       The UART port, also known as the Universal Asynchronous Receiver/Transmitter, is part of the common functions of the microcontroller and is also a necessary hardware interface for early deskto...[Details]