I have a DSP chip, including a USB2.0 controller, which can realize the USB function through programming. Now there is a problem. When the USB cable is connected to the host, the device side can recei...
In communication systems, such as transmitter testing, the power level of the transmission may range from a few watts to hundreds of watts or even thousands of watts. Such a large power signal must be...
The current problem with serial communication is that the serial communication reception is not normal, but it can be sent normally. Please give me some advice to see where the problem is. The source ...
temp=(T-time->NowT); if(time->Enable && (temp>(time->clock))) if((time->Enable) && ((T-time->NowT)>(time->clock))) The above two writing methods have different results in PIC...
Radio waves need to be transmitted, and the frequency must be high enough, such as 900MHZ and 1800MHZ of GSM. The frequency of sound is very low, only 20HZ-20KHZ. This frequency signal cannot be trans...
I made the board myself, I use two of them myself, and the rest are extra, I'm selling half of them and giving them away, I'm selling them at a lower cost, 15 yuan a piece, free shipping nationwide, I...
Introduction
Power subsystems are becoming more and more integrated into the overall system. Power systems have moved from being separate "essential dangerous devices" to being monitorable...[Details]
Problems such as the depletion of natural resources, air pollution, traffic congestion, and rising fossil fuel prices have forced societies and individuals to seek alternative means of transportati...[Details]
1. Disadvantages of choosing too high a voltage level
Choosing too high a voltage level will result in too high an investment and a long payback period. As the voltage level increases, the...[Details]
Motors, especially those with brushes, generate a lot of noise. This noise must be dealt with if the appliance is to meet the requirements of EMC standards. The means to solve EMC are nothing more ...[Details]
1 What is an LED floodlight?
LED downlights are also called spotlights, projection lamps, and spotlights. They are mainly used for architectural decorative lighting and commercial space lighti...[Details]
LED is the abbreviation of the English word. Its main meanings are: LED = Light Emitting Diode, a solid-state semiconductor device that can convert electrical energy into visible light. It can dire...[Details]
The battery and its management system are one of the key technologies of electric vehicles. In the past few years, most companies have encountered embarrassment in the development of electric vehic...[Details]
The cruise control system (CCS) of a vehicle is also called a constant speed driving system. It is an electronic control device that uses advanced electronic technology to automatically adjust the ...[Details]
Improving the coordination of material handling and internal transportation between departments in modern factories is an important measure to achieve full automation of production. Traditional mat...[Details]
This paper first proposed an elevator controller algorithm based on a finite state machine, and then designed a three-story elevator controller based on the algorithm. The correctness of the elevat...[Details]
1 Introduction
With the rapid development of the national economy, AC motors have played an extremely important role in industrial production. As the main traction motor in various industries,...[Details]
Conventional crystalline silicon solar cells are made on high-quality silicon wafers with a thickness of 350-450μm, which are sawn from pulled or cast silicon ingots. Therefore, more silicon materi...[Details]
“Productivity determines production relations, and the development of productivity determines the change of production relations”, yes, society is always full of changes, and advanced science and t...[Details]
1. What is the difference between the continuous output power and the peak output power of a power inverter?
Continuous power and peak power differ in the meaning they express.
Continuous...[Details]