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The correct wiring method when using a DC ammeter to measure DC current is as shown in the figure. Among them: Figure (a) shows the direct connection method of the DC ammeter; Figure (b) shows the DC...[Details]
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Abstract: Common fault codes of oscilloscopes, oscilloscope maintenance scope: no light spots, no waveforms, no display in horizontal or vertical directions, dense or tilted vertical/horizontal lines...[Details]
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China Energy Storage Network:
As of February 22, the cumulative amount of electricity delivered by "Xinjiang Power Delivery" reached 503.7 billion kWh, creating more than 120 billion yuan i...[Details]
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1. Introduction
Induction heating technology was first used in household induction cookers. Later, as the advantages of high efficiency, energy saving and environmental protection became more ...[Details]
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Selection of EMC measurement equipment When selecting EMC test equipment, we often encounter the following questions: What is the difference between an EMI receiver and a spectrum analyzer? Why s...[Details]
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China Energy Storage Network:
From now until the middle of this century is an important strategic opportunity period for building a global energy internet. At present, the resources, technolo...[Details]
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1.138 decoder 1.74HC138 is a high-speed CMOS device. The 74HC138 pin is compatible with the low-power Schottky TTL (LSTTL) series. The 74HC138 decoder accepts 3-bit binary weighted address inputs (...[Details]
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X-ray Flaw Detection Principle
(1) Characteristics of X-rays
X-rays are a type of electromagnetic wave with a very short wavelength. They are photons with a wavelength of 10-6~10-...[Details]
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In 2021, the pandemic has made remote work and online learning the norm, and the demand for higher computing power and less latency has increased significantly, so the high-performance computing (HPC...[Details]
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Today, methods to protect electronic products from circuit faults and manage power-on surge currents have evolved from simple fuses and uncertain P-channel FETs to much more advanced solutions. These...[Details]
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Parallel communication: refers to a communication method in which each bit of data is transmitted simultaneously.
Serial communication: refers to the communication mode in which data is transmitted...[Details]
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The typical fault troubleshooting listed below is for reference of maintenance personnel. When the computer is turned on, the indicator light is off and there is no screen display Maintenance: Aft...[Details]
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It has been more than a year since TSMC announced its decision to build a factory in the United States. During this period, the new US President Biden came to power and announced a package of subsidi...[Details]
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Use mege8L's PB0-PB3 to connect the four terminals of the stepper motor! The torque of this stepper motor is very small, and it is strongly recommended not to remove it from the base! ! ! Otherwise, ...[Details]
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Direct reading spectrometers often encounter some minor faults during use. If the manufacturer cannot arrive in time, we can try to solve them ourselves. Some problems are really simple.
1. The neg...[Details]
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