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What is thermal resistance
Thermal resistance (Θ) is the ratio of the temperature rise in a heat dissipation path to the heat flowing through the same path. It is described by the ...[Details]
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Reasons:
① The characteristics of the meter itself have changed, such as the instrument shaft tip and the bearing are not installed correctly; the rotation is not flexible, etc.;
② The shunt res...[Details]
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There are many circuits that show the operation of zero crossing detectors using 50Hz and 60Hz wires. Although there are many circuits, most of them have shortcomings. The circuit shown in this examp...[Details]
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1. Determine the interference source based on the frequency of the interference signal
When solving electromagnetic interference problems, the most important issue is to determine the so...[Details]
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It is the end of the year now. As usual, the annual flagships of major mobile phone manufacturers will be released one after another, presenting the "Spring Festival Gala of the Technology Indu...[Details]
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2.1 Hardware functions of MCS-51 microcontroller
2.2 MCS-51 Hardware System Structure
2.3 Memory Structure
2.4 I/O Ports
2.5 Reset Circuit
2.6 CPU Timing
2.7 CPU Pin F...[Details]
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There are hundreds of digital types. According to the range conversion method, they can be divided into manual range digital multimeters, automatic range digital multimeters and automatic/manual rang...[Details]
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Insert the J5 jumper of the 51hei-5 MCU development board to the 23 terminal to select the buzzer, burn the program and you can hear the beautiful girl's music.
#include reg52.h
#include ab...[Details]
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In electrical experiments, the core issue is to explore the measurement of resistance. Its content is nothing more than measuring the resistance of conductors, the resistance of meters, and the resist...[Details]
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TDK has recently launched the new B43707* and B43727* series of EPCOS aluminum electrolytic capacitors in screw format. The rated operating voltage of the new series of capacitors is 400 V DC to 450 ...[Details]
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I believe everyone is familiar with the famous AlphaGo, and the company that developed it is DeepMind. As a star AI company under Google, DeepMind disclosed 12 AI patent applications in 2018, which i...[Details]
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Measuring current with a multimeter is a bit cumbersome and requires disconnecting the circuit. For example, disconnect the live wire, connect the red test lead to the power side, and connect the bla...[Details]
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A diode is a device with two electrodes that allows current to flow in one direction. Due to this feature, diodes are often used as reverse blocking in circuits. Using the two working states of the d...[Details]
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1 Introduction
Life signals are affected by many factors such as the human body, and have the characteristics of weak signals, strong noise, low frequency range and strong randomness. The tradi...[Details]
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The "Skyactiv Technology Media Open Class" jointly organized by Mazda China and FAW Mazda (Weibo) was held in Beijing on January 6. This is the first professional technical training and exchange acti...[Details]