Abstract: As the core component of the digital satellite video broadcasting (DVB-S) receiving chip, a design of a fully digital quadrature phase shift keying (QPSK) receiving demodulator is given. The...
There are two types of GPS modules on this board, one is ublox's MAX-M8Q, and the other is LYNQ's N10. When debugging, I still chose ublox's MAX-M8Q.
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When testing, use the serial port transparent mo...
StartFragment#pragma interrupt_handler TimeCountr0_Interrupt:20 void TimeCountr0_Interrupt(void) { //interrupt program } After T0 interrupt, it is always impossible to enter the interrupt programvoid ...
Application and classification of energy storage technology in photovoltaic power generationThe energy supplied by solar energy varies periodically or non-periodically over time and seasons, and does ...
[size=6][color=Red]The whole process of the sunrise on New Year's Day 2008 (a little late) Here is the whole process of the sunrise on New Year's Day 2008 for everyone. May friends all over the countr...
[i=s]This post was last edited by jameswangsynnex on 2015-3-3 20:00[/i]How to choose a good LCD monitorMonitors are a kind of thing that is compared. After you see a monitor in a store, you cross the ...
Assume that data is read from 8-bit AD (if it is a higher-bit AD, the data type can be defined as int), the subroutine is get_ad();
1. Limited secondary filtering
/* A value can be adjust...[Details]
Floating-point digital signal processing has become a constant requirement for precision technology, often in applications requiring high accuracy in areas such as aviation, industrial machinery, a...[Details]
In recent years, the market for mobile/portable devices such as smartphones and laptops has continued to grow rapidly. While these products continue to integrate more new features to enhance the ...[Details]
1. Introduction
Light control circuit plays a vital role in urban street lamps or corridor lighting. With light control circuit, the lights can be automatically turned on and off according to ...[Details]
1 Introduction
Solar street lights are mainly composed of four parts: solar photovoltaic cell components, batteries, charge and discharge controllers, and lighting fixtures. The bo...[Details]
I. Introduction
In the field of power conversion, isolated converters (forward, flyback, and double-ended) with low output DC voltage all use MOSFET as the rectifier device. Since these devi...[Details]
With the rapid development of urban economy, elevators are increasingly used as a vertical transportation tool. However, elevator fault detection and maintenance, especially the role of elevator remot...[Details]
We know that microcontroller development tools generally include real-time online emulators and programmers. Among them, online emulators are very good tools, but they are also more expensive...[Details]
LED is the abbreviation of light emitting diode, which is an electric light source made of semiconductor technology. The core part of LED is a chip composed of P-type semiconductor and N-type semi...[Details]
Overview
In spectral measurement, photomultiplier tubes (PMT) and charge-coupled devices (CCD) are often used as photoelectric converters. PMT is used in slow-changing, high-precision spectral...[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]
It is well known to automotive suppliers that automakers are demanding more from their supply base. For connector suppliers, this means stricter requirements for product performance, stability and ...[Details]
The era of mobile access to the Internet has arrived, and it will rapidly change the business and infrastructure needs of mobile operators under a whole new trend of requirements. We need 4G LTE to...[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]
This article discusses the six design steps of LED lighting system design in detail: (1) determine the lighting requirements; (2) determine the design goals and estimate the optics; (3) the efficie...[Details]
Analog electronics
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