The demand for energy saving and noise reduction in the transmission system of electric bicycle is increasing day by day. Compared with the traditional brushless DC motor driven by 120 degree square wave with two or two conductors, the permanent magnet synchronous motor driven by vector control has the advantages of low noise and low

Three-terminal regulator is a common component of air-conditioning controller. Its main function is to convert and stabilize DC voltage. The crystal elements in the three-terminal voltage regulator are semiconductor materials. In the actual production process, electrostatic damage often occurs, which will affect the normal operation of the whole air conditioning controller. Therefore, it is particularly

With the comprehensive development of society and science and technology, programmable logic controller has been widely used in many fields. We will analyze it from the hardware circuit debugging of programmable logic controller, lower computer program debugging, upper computer program debugging and system on-line programmable logic controller debugging. This paper will discuss the debugging and

In the live broadcast of the first flight of the C919 airliner, the audience saw Captain Cai Jun flying steadily in the sky, only to see his arm move slightly, so that he could easily control the huge C919 airliner. Where’s the secret? The answer is the telex side bar controller. The telex side bar

Modican PLC controller is widely used in ETS system, and this type of PLC control system runs stably and has high reliability. However, with the development and upgrading of power process control system, the original Modican PLC control system has appeared many hidden dangers affecting the safe operation of equipment and system, such as hard

A temperature control system of intelligent household electric water heater is designed. STC89C52 MCU is used as the control core and C language is used to write the program. Using keyboard to set the temperature, the temperature can be accurate to 0.1 degrees Celsius, and using LED light display, can accurately provide users with the

Datang Sanmenxia Power Generation Co., Ltd. Phase II 600 MW units have increased significantly in recent years in the number of card and CPU failures, and the cost of CPU replacement is high, the risk of replacement process is high, increasing the workload of daily maintenance, seriously threatening the safe and economic operation of the

The automatic control system of diesel generator unit involves the computer control technology and related control theory of industrial machinery automation. In this paper, the situation and problems of diesel engine unit controller are briefly described, and then the matters needing attention in the application of MCU in diesel generator unit controller are analyzed, and

In view of the analysis of the operation status of the controller of thermal verification furnace, the debugging method and its application technology are explored. The core purpose is to realize the rational application of the debugging method on the basis of improving the control technology of thermal verification furnace and to meet the core

This paper introduces the system composition, working principle and some shortcomings of the existing verification device for exhaled gas alcohol content detector, and puts forward a system scheme to solve the existing shortcomings. It also introduces in detail the components, working principle, device innovation of the verification device for exhaled gas alcohol content detector in