A microphone, an ultrasonic transmitter, a controller, and other discrete components. When something hits a glass, the microphone receives the sound wave signal, which is analyzed by the controller to...
, implement the programming of 8255 three ports, output data from one port and input data from another port, and judge whether the input data and output data match. If they match, then conversely, out...
I used two ADC channels and found that when collecting the same signal, the ADC reading of one channel was always 20-30 more than the other.
Has anyone ever encountered such a situation?
Let’s talk ab...
Incremental encoder, read pulses and count through CPLD. Later, I found a strange phenomenon. The encoder started at a position, and after multiple forward and reverse rotations, it returned to the or...
On October 25, 2020, Samsung Electronics announced that its chairman Lee Kun-hee had passed away due to illness. Since he was hospitalized for a sudden heart attack in 2014, the 70-year-old man has be...
An Introduction to Digital Control of Switching Power ConvertersGeof PotterApplying digital methods to the control of power converters, in particular board-mounted dc/dc converters, offers a rich set ...
At present, the development of wireless power supply technology for electric vehicles (EVs) is becoming more and more active. In 2012, Volvo of Sweden established Volvo Technology Japan in Tokyo as...[Details]
Hardware designers have begun to adopt FPGA technology in high-performance DSP designs because it can provide 10-100 times faster computing than PC-based or microcontroller-based solutions. Previou...[Details]
A single-chip microcomputer is also called a single-chip microcontroller. It is not a chip that completes a certain logical function, but a computer system integrated into one chip. In general, a c...[Details]
1. Introduction
RFID (radio frequency identification) is a non-contact automatic identification technology that emerged in the 1990s. It uses the characteristics of radio frequency signal prop...[Details]
In
circuit design,
current
measurement
is widely used, and the main fields are divided into three categories: in measurement,
the electric meter
is used to measure the curre...[Details]
0 Introduction
With the development of my country's economy, the number of motor vehicles continues to increase. The growth of existing roads and other hardware facilities can no longer meet t...[Details]
Automotive applications are particularly sensitive to EMI events, which are unavoidable in a noisy electrical environment consisting of a central battery, bundled wiring harnesses, various inductiv...[Details]
Analog engineers have traditionally struggled with complexity when designing power supplies that required multiple outputs, dynamic load sharing, hot-swap, or extensive fault-handling capabilities....[Details]
In order to highlight the concept of "energy saving and environmental protection" of intelligent buildings, solar street lights are designed for intelligent communities. The inclination and capacit...[Details]
The reason for the light decay of white LEDs: the decline of phosphor performance
So far, the rapid decline of the luminous performance of white light LEDs, especially low-power white light LE...[Details]
In recent years, lighting has become an important area that countries around the world are targeting to promote energy conservation and environmental protection. According to statistics, about 20% ...[Details]
Electronic systems are located at different points on the automotive power bus and therefore often need to operate under very stringent power requirements. These include load dump, cold crank, very lo...[Details]
Although it is relatively easy to check the stability of a simple amplifier at lower frequencies, it may be much more difficult to evaluate the stability of a more complex circuit. This artic...[Details]
1. Introduction
Testing the temperature of steel billets before rolling is an important measure to ensure the quality of steel. Traditional manual testing is difficult to ensure product qu...[Details]
Abstract: With the development and construction of BeiDou II system, China will shift from the situation dominated by GPS to the situation dominated by BeiDou II global navigation system independen...[Details]
DIY/Open Source Hardware
京公网安备 11010802033920号
EEWORLD
