Why is the denominator of the temperature coefficient of the crystal in the above picture T squared? Can someone give me the calculation formula?In the above picture, what unit is fF? Is the relations...
无线多媒体通信和计算市场的迅猛发展既对电源提出了越来越高的要求，同时也为电源以及电源管理IC市场的发展注入了一股强劲的增长动力。近几年来电源管理IC的市场规模和潜力一直处在急速膨胀之中。据美国风险发展公司(VDC)估计，2004年电源管理IC的销售收入将超过75亿美元，平均年增长速率将超过16%。电信和计算机将是其中增长最显著的两大应用领域。One of the major goals of po...
I have just learned 430. Relying on TI's routines and my own ideas, I wrote the following program. The function I want to achieve is: through serial port 1 receive interrupt, the data received by seri...
Windows, VC2008 After installing the driver, the current sound card will come with a sound card settings program. In this sound card settings program, there are various volume settings, which can be a...
The application range of pressure sensors is also very wide. They are used in many industries such as medical, industrial, aerospace, and construction. If the pressure sensor is in a high temperature ...
1. Introduction
Since the 1980s, with the continuous development of automotive electronic technology, there are more and more electronic control units in automobiles, such as electronic fuel i...[Details]
0. Introduction
In daily life, we often see some special-purpose vehicles. When these vehicles pass through intersections, they often obtain the right of way at intersections by temporarily op...[Details]
Battery life is critical for portable applications. For applications such as smoke detectors, security devices, and thermostats, factory-installed batteries need to last for more than 10 years. The...[Details]
I. Introduction
Since RS232 has a short communication distance (only 15 meters according to EAT/TAI-232 standard), and can only perform point-to-point communication, it cannot directly f...[Details]
The automotive lighting and signal control system is responsible for controlling the vehicle's lighting, signal lights, electric horns, reversing and brake buzzers. Traditional automotive lighting...[Details]
The typical fault troubleshooting listed below is for reference of maintenance personnel.
When the computer is turned on, the indicator light is off and there is no screen display
Mainte...[Details]
Digital array radar (DAR) uses digital beam forming (DBF) in both receiving and transmitting modes to achieve flexible distribution and reception of RF signal power in the airspace, obtain excellent t...[Details]
VP2188 is a color STN LCD module produced by Jingdian Pengyuan. This module is a dot matrix transmissive color STN display screen with a color scale of 65 k colors and white LED backlight. Its core...[Details]
TC9012F is a universal CMOS large-scale integrated circuit for infrared remote control signal transmission, suitable for remote control of TV, VTR, laser player and other equipment. In the market, ...[Details]
Among the many members of the single-chip microcomputer family, the MCS-51 series of single-chip microcomputers has occupied the main market of industrial measurement and control and automation eng...[Details]
From the previous section, we have learned that the timer/counter in the microcontroller can have multiple uses, so how can I make them work for the purpose I need? This requires setting the timer/...[Details]
OC faults may be the most frequent and the most frequent of all faults in the inverter. They alarm during the startup process, during the shutdown process, during operation, and even when powered o...[Details]
Preface
In recent years, white light LEDs have gradually replaced incandescent bulbs and fluorescent lamps because they have unparalleled advantages over traditional light sources in terms...[Details]
0 Introduction
With the rapid development of social economy and science and technology, electric locomotives, subways and electric vehicles will be widely used. The power conversion and cont...[Details]
0 Introduction
Ultrasonic waves
are mechanical waves with a frequency of more than 20KHz, and the propagation speed in the air is about 340 m/s (at 20°C). Ultrasonic waves can be gene...[Details]
Analog electronics
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