RF Test Notes is a column where frontline engineers in the industry introduce RF microwave test technology through a combination of theory and practice, mainly covering noise figure, digital modulatio...
I saw this software on the Internet and it is very useful. From its introduction, it will make the software programming of embedded systems, which is currently difficult to handle, very easy. I don't ...
[i=s]This post was last edited by Brain Enthusiast on 2015-7-8 18:38[/i] I wonder if you have seen the news about unlocking the door by kissing. Does anyone know what the principle is? What sensor is ...
I am working on a receipt collection system recently. I want to collect data transmitted by the car CAN bus. The initial idea is to use the 51+SJA1000+FT232RL system to connect to the host computer to...
I used Altium Designer 6.9 to draw a 51 microcontroller. During the final rule check, the Signal PinSignalJ8_2[0] has no driver error appeared. Many errors are of this type! I don't know how to modify...
[size=14pt][b]Introduction to the switching power supply design process[/b][/size] [size=14pt][b]Using a specific circuit as an example, this paper introduces the switching circuit development process...
In early 2002, I started to write a working program for an IC card prepaid electricity meter. The meter used Philips' 8-bit 51-expanded single-chip microcomputer
87LPC764
, and wa...[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]
When the WDP500-2A plane grating monochromator is used to test the emission wavelength of a high-power laser diode at different currents, the matching of the laser diode has the disadvantages of lo...[Details]
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]
Abstract: In order to generate a stable excitation signal, the design of a digital frequency synthesizer is implemented on FPGA using Verilog hardware language. The design includes accumulator, wav...[Details]
introduction
For the voltage regulator modules (VRMs) that power the latest computer central processing units (CPUs), power supply designers have historically used multiphase interleaved b...[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]
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]
1. System Structure
This system is a simulation system of indoor air-conditioning temperature/humidity control system. The data acquisition and control center collects temperature/humidity...[Details]
0 Introduction
With the rise and continuous improvement of the solid-state lighting industry, light-emitting diodes (LEDs) have become an alternative lighting technology and are gr...[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]
This controller uses PIC16C54 single-chip microcomputer as the controller, and it is very easy to use: just connect a telephone line to the loudspeaker through the controller, and you can rem...[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]
RF/Wirelessly
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