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Abstract: This paper discusses the basic principles of sound source localization technology based on microphone arrays, and gives the design method of using FPGA to implement each module of the s...[Details]
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In the United States, the traffic accident death rate has been declining in recent years, and in 2010 it was 3% lower than in 2009, reaching a new low since 1949. The U.S. Department of Transportat...[Details]
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1 IC Card Reader Overview People often come into contact with magnetic cards and IC cards in their daily lives. They are divided according to the different information carriers on the cards. Cards ...[Details]
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The power supply has the characteristics of stable output, adjustable voltage, small size, stable performance circuit, etc. The output current of the switching power supply is 1.8A; the output volt...[Details]
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System Overview
This system consists of signal preprocessing circuit, microcontroller AT89C2051, systematic LED display module, serial port data storage circuit and system software. The signal...[Details]
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1.PIC16F876a result register The 7-bit bit of the ADCON1 status register defines whether the output result is left-aligned or right-aligned. I am confused and don't understand what it is saying. I ...[Details]
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As a special commodity, coal quality evaluation must have coal samples that can represent the entire sample, and the acquisition of coal samples must have a standardized sampling and sample prepara...[Details]
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1. MCLK, SMCLK, ACLK default clock frequency
1.1 POR and PUC
POR refers to Power-On Reset, i.e. power-on reset (hardware), and PUC refers to Power-Up Clear, i.e. power-on clear (software reset)...[Details]
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Thermal imagers are a kind of detection instrument, which are widely used in the construction field, to check hollows, defects, tile shedding, moisture, thermal bridges, etc. There are some skills tha...[Details]
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The single most important characteristic of an oscilloscope, bandwidth, provides a range indication in the frequency domain. Bandwidth is the first specification most engineers consider when selectin...[Details]
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Although near-infrared (NIR) spectrometers have been around for 60 years, their importance in measuring the energy reflected or transmitted by different materials is rarely recognized. NIR spectro...[Details]
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introduction
With the continuous development of touch button technology, touch buttons have been widely used in electrical appliances, mobile phones, kitchen equipment, home appliances, in...[Details]
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Lithium-ion batteries can be used in small electronic devices as well as larger applications such as electric vehicles and power grids, and they can easily meet the requirements of various sizes, vol...[Details]
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TTL NOR gate, open collector gate and tri-state gate circuit
1.TTL NOR Gate
The figure below shows the logic circuit of the TTL NOR gate and its representative symbol.
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Understand the basic principles of frequency converter
A frequency converter is a device that converts AC power into DC power with adjustable speed, and then converts DC power i...[Details]