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According to people familiar with the matter, recently, the Shanghai Intellectual Property Court ruled to dismiss all lawsuits filed by Spanish company Fractus against domestic mobile phone manufact...[Details]
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Understanding Isolation Electrical isolation separates sensor signals, which may be exposed to hazardous voltages, from the low-voltage backplane of the measurement system. Isolation provides many a...[Details]
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Measuring 220v leakage is not appropriate because what you want to measure is leakage current. Measuring weak AC current with a multimeter is weak, and it is troublesome to measure it inaccurately. I...[Details]
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Experiment 1 - Lighting up an LED 1. Look at the schematic to determine how the hardware is connected The schematic diagram shows the hardware circuit of the chip controlling the LED and how the chi...[Details]
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"Putting your phone on the bedside will affect your memory", "Be sure to turn off WiFi when you go to bed at night", "Put a cactus next to your computer to prevent radiation", I believe you have hear...[Details]
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Small voltage stabilized power supply production
There are many adjustable rectifier power supplies on the market that can output 3-12V voltage. However, most of these power supplies ...[Details]
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1. Chip heating
This is mainly for high-voltage driver chips with built-in power modulators. If the chip consumes 2mA of current and a voltage of 300V is applied to the chip, the power consump...[Details]
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A lot of light from LED jewelry lighting cannot be irradiated from the LED jewelry lighting chip to the outside due to refraction. For this reason, a layer of silicone transparent resin with a...[Details]
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#include reg52.h #define uint unsigned int #define uchar unsigned char uchar code table ={0xc0,0xf9,0xa4, 0xb0,0x99, 0x92,0x82,0xf8,0x80,0x90}; sbit gew=P2^1; sbit shiw=P2^0; sbit k2=P1^0; uchar nu...[Details]
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1 Introduction
One of the main development trends of modern switching power supplies is to improve the power factor of the input end of the AC/DC converter and reduce the harmonic pollut...[Details]
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Thermocouples and thermal resistance thermometers are commonly used temperature measuring instruments in industrial and mining enterprises and scientific research institutes. Correct installation o...[Details]
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Electromagnetic flowmeters should be used in an environment that avoids external electromagnetic interference, especially interference from power frequency electromagnetic fields. Some high-power moto...[Details]
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1 Introduction With the increase of various household electrical appliances, the amount of electricity consumed by the people has increased dramatically. Driven by economic interests, the phenomeno...[Details]
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A piece of equipment in the workshop broke down. The leader asked the electrician to deal with it. After the electrician arrived at the site to check, he found that the inverter controlling the mot...[Details]
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1. Introduction
The interaction effectiveness between the modules of electric vehicles directly affects the driving efficiency and driving experience of the vehicle. Plug-in hybrid vehicles ca...[Details]
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