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Measuring simple signals Next, we use the DS1000 oscilloscope to observe an unknown signal in the circuit, and quickly display and measure the frequency and peak-to-peak value of the signal. (1) Ra...[Details]
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1 Mobile phone amplifier
The so-called mobile phone amplifier does not mean that installing this equipment on the spot can improve the communication effect. The mobile phone signal c...[Details]
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In terms of advanced semiconductor technology, TSMC is currently the undisputed leader, accounting for a full 53% of the foundry share in the third quarter. Samsung ranks second, but its share ...[Details]
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A simple circuit is shown in Figure A, where UJT constitutes a self-excited oscillator, and its output signal is added to the control electrode of the thyristor SCR. By adjusting the potentiometer R2...[Details]
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Recently, some investors have found that Zhongfu Circuit's inventory has continued to rise, and they are worried about the risk of scrapping. In this regard, on January 19, Zhongfu Circuit said throu...[Details]
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On July 23, after the Science and Technology Innovation Board had a "good start" on its first day of listing, the opening trend of the next day was obviously differentiated, with a general decline. ...[Details]
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Strategy Analytics' latest research report "IoT Module Vendor Market Share Update" points out that Chinese vendors dominated the IoT module market in 2018. With the acquisition of SIMCom and Longsun,...[Details]
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A few days ago, I was on a business trip and asked if you need a bootloader to implement online upgrades. There are still many people who need it. Here I will share my implementation process with you...[Details]
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Calculators are of various types, exquisitely made, sensitive to trigger, and cheap. Using an old calculator to transform it into a universal keyboard for a single-chip microcomputer system can be ...[Details]
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1 What is safety testing?
Safety testing is a test to see if a product may cause harm to the user during use. The basis for judging safety testing is mainly whether the safety indicators meet the req...[Details]
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The RTC1000 oscilloscope is unique in its high sensitivity, versatility and cost-effectiveness. Rich analysis capabilities make it suitable for a large user base, including embedded design developers...[Details]
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Among variable area capacitive sensors, the flat plate structure is particularly sensitive to the change of the pole distance, which affects the measurement accuracy. The cylindrical structure is less...[Details]
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Transformer feedback oscillation circuit
Transformer feedback oscillation circuit
1. Working Principle
The simplest way to introduce positive feedback is t...[Details]
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Based on foreign news on the 11th, senior U.S. government officials told Reuters that U.S. President Biden and Japanese Prime Minister Fumio Kishida are expected to discuss common security and global...[Details]
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As the electrification transformation enters the deep water zone, the new energy vehicle industry is experiencing rapid technological iteration and accelerated market penetration. As one of the imp...[Details]