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1.1. What is a dynamic digital tube? (1) The digital tube is still the original digital tube (either common anode or common cathode); the dynamic digital tube has two ends: COM end and segment code e...[Details]
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A few days ago, multiple sources pointed out that Lenovo founder Liu Chuanzhi was about to step down as chairman of Lenovo Holdings. On the evening of December 18, Lenovo Holdings issued an announcem...[Details]
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Dual Tone Multi-Frequency (DTMF) signaling is gradually being used on touch-tone telephones around the world. It quickly replaced the dial pulse signaling used in traditional rotary phones because it...[Details]
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1 Introduction
As LED technology matures, LEDs of various colors have been developed, and the cost has also dropped significantly. LED drive circuits with an output current of more than 300mA ...[Details]
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1 Introduction Multi-parameter monitors are widely used in ICU, CCU, wards, operating rooms, etc. At present, my country also has products with independent intellectual property rights, such as Min...[Details]
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Compared with traditional light sources such as incandescent lamps and compact fluorescent lamps, light-emitting diodes (LEDs) have many advantages such as high luminous efficiency, long life, and ...[Details]
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Overview
When collecting data, accurate relative time is very important. Especially when collecting at high speed, it is difficult for the software of the host computer (especially the softwar...[Details]
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On the sensing surface, when the light intensity changes, the oscillation frequency of the amplifier output also changes accordingly. The blind can sense the corresponding changes in the external ...[Details]
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According to data, in June 2019, domestic passenger car sales reached 1.766 million units, up 11.6% from the previous month and 4.9% from the previous year. Among them, sedan sales reached 887,000 un...[Details]
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Verkor, a European pioneer in low-carbon batteries for electric vehicles, recently held an unveiling ceremony for its innovation center in Grenoble, a major French technology center. Several French go...[Details]
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Did you know that hardware problems account for less than 10% of all test instrument failures? More often, the lack of regular inspection and maintenance of the instrument and improper use of the osc...[Details]
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Overview
Ozone, as an efficient cold sterilization method, has been widely used in all walks of life. Ozone, which has efficient and rapid sterilization effect, is widely used in hospital...[Details]
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There are various classification methods for testing instruments according to their technical characteristics or scope of use. ① According to the parameters being measured, the detection instruments ...[Details]
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CPLD (Complex Programmable Logic Device) is a complex user-programmable logic device. Due to its continuous connection structure, it is easy to predict delays, making circuit simulation more accurate...[Details]
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In the development of single-chip microcomputer applications, engineers are still troubled by code efficiency, anti-interference and reliability of single-chip microcomputers. In order to help engine...[Details]
Microchip MCU
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