Abstract: This paper introduces the design technology of 65W dual-output 1/4 brick module power supply PAQ65D48-* series, including the application of active embedded soft switch single-ended forward ...
D8199 is a stereo amplifier and DC volume control circuit. It is widely used in audio amplifier remote control, electronic game consoles and CATV (fiber optic television) audio control....
I would like to ask what method is better for reducing vibration of a small crystal oscillator. The size of the crystal is about 3*5cm, but the phase noise at 1KHz is required to be better. What metho...
I wrote a program in WinCE, but as soon as the program runs, a "Crash" window pops up, saying: "Unexpected program failure. Please send "crash.txt" to the developers. Program will now exit." What kind...
I programmed a calculator these days, and after programming it, I found that some calculations were inaccurate, for example, 5.6*3=16.799999 (the calculator retains six significant figures). Is it an ...
The first question: How are serial port 3 lines and 9 lines distinguished in the driver? For example, that statement. The second question: Where is the MODEM and IRDA judged in the driver. For example...
From being a global leader to losing the market, Korean battery manufacturers have always wanted to regain the lost market and dignity, but facing Chinese battery manufacturers represented by CAT...[Details]
When discussing autonomous driving technology, there are often two extremes: on the one hand, there's the vision of "fully autonomous driving," while on the other, there's concern about potential s...[Details]
On August 22, the National Energy Administration released the latest data, showing that by the end of July 2025, China's total number of electric vehicle charging infrastructure will reach 16.696 m...[Details]
introduction
As “energy conservation and emission reduction” has become an indicator of the National Economic Development Outline of the 11th Five-Year Plan, people’s awareness of green enviro...[Details]
introduction
The concept of the smart home is gradually developing and gaining market acceptance. We believe its ultimate form lies in the interconnection of all home appliances through open i...[Details]
In the scorching summer, electric fans are a must-have for cooling down people's homes. However, I believe most people have encountered this situation: the fan is plugged in, the switch is pressed,...[Details]
Teletrac Navman has launched the Multi IQ dashcam, a cloud-based solution designed for large commercial vehicle operators. It connects up to five cameras to cover the vehicle's interior, sides, and...[Details]
Methods of DC motor speed regulation:
1. The voltage regulator can be used to change the input voltage and speed directly, which is often used for large kilowatt-level motors.
2. Thyristo...[Details]
Previously, Positive Motion Technology shared with you the firmware upgrade of motion controller, ZBasic program development, ZPLC program development, communication with touch screen and input/out...[Details]
Plug-in hybrid vehicles (PHEVs) utilize two powertrains. Their pure electric range is typically inferior to that of pure electric vehicles, often reaching less than half that. Currently, mainstream...[Details]
Electric vehicles will revolutionize transportation, changing fuel consumption, carbon emissions, costs, maintenance, and driving habits. Currently, a major selling point for electric vehicles is t...[Details]
Tires are a very important component for cars. They are related to the driving experience of the vehicle. We are almost inseparable from cars in our daily lives. For tires, according to the role of...[Details]
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In recent years, multi-touch has emerged as a new alternative to traditional human-computer interaction. It eliminates the need for keyboards and mice, enabling simultaneous inter...[Details]
introduction
With the development of society, people's requirements for the quality of refrigerated and frozen foods are constantly improving. The changes in food appearance and nutritional co...[Details]