1. The above picture shows that I am making a 2000W half-bridge power supply. The PWM wave output by DSP. Is the waveform correct? How does the duty cycle change and what should I pay attention to? [/...
Support this book. This book is a training material for Huaqing Yuanjian Embedded Training Center and can be purchased in bookstores. The other chapters of the electronic version will be produced and ...
[i=s]This post was last edited by chenzhufly on 2015-3-23 21:49[/i] [align=center][size=3][b]Author: chenzhufly QQ: 36886052[/b][/size][/align] [size=3][color=#000000][b]Hardware platform:[/b]Embest S...
Hello, analog electronics experts, I am here to bother you again. Figure 1 below is an RLC oscillation circuit. Switch S2 is turned on at 5A current, the on time is 20us, and the rest of the time is i...
28335 can be debugged with the original sample program, but since the project also uses USB flash drive to expand storage, the segment .ebss must be large enough. In the USB flash drive, segment .ebss...
After replacing the 128MSDRAM, the system finally started up. Now the problem is that the SD card cannot be recognized. I read online that since the Microsoft SD card driver is not open source, the vi...
The rapid development of the Internet has realized high-speed information transmission and resource sharing, greatly facilitating people's lives. Embedded systems are widely used in various electr...[Details]
Traditional broadcasting systems generally need to be operated manually at a fixed time, and can only realize one-way broadcasting with few functions. Traditional bell ringing equipment has a singl...[Details]
Microchip's PIC18F46J50 is a low-power, high-performance 8-bit USB microcontroller (MCU) using nanoWatt XLP technology. The current in deep sleep mode can be as low as 13nA, the operating voltage i...[Details]
1. Circuit composition
The whole circuit consists of two parts:
1. Power saving control circuit
As shown in the figure below. Including delay circuit and drive circuit.
(1) Delay ci...[Details]
1. Introduction
With the growth of parking demand, the scale of parking lots is becoming larger and larger. A lot of research has been done on intelligent parking lots in China, but most of th...[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]
Converged processors meet scalability requirements
In current embedded system design, solutions based on MCU, DSP, FPGA and ASIC account for more than 90% of the market share. These solutions ...[Details]
introduction
Solar cells and LED lighting are typical applications of new energy and energy-saving and efficient technologies. Solar LED lighting uses solar cells to convert solar energy...[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]
Two simple circuits are implemented to drive two LEDs from a battery powered microprocessor.
This design is based on a circuit that uses three resistors and a microprocessor I/O pin as an input h...[Details]
Images in science fiction movies often break through the limits of reality, such as in the movie "Minority Report." Tom Cruise uses a multi-touch screen to browse information. Capacitive sensing te...[Details]
Microcalorimetry
is used to determine energy relationships. Microcalorimetry techniques are often required when performing calorimetric experiments with small sample sizes or slow heating rat...[Details]
Xiaomi, a well-known Internet phone in mainland China, won a million-unit order contract from China Unicom on November 20 last year, which made Xiaomi famous in mainland China. In April this year...[Details]
With the advocacy and implementation of the government's Safe City Plan, the security market has increasingly higher requirements for the clarity of surveillance images. Imagine that after a case o...[Details]
Continuity test
A variety of devices need to be checked for continuity, including cable assemblies, printed circuit boards, and connectors to ensure that these components have the expected contin...[Details]
Power technology
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