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1. Selection of Optocoupler
For optocouplers using a phototransistor, the CTR range is mostly 20% to 300% (such as 4N35), while PC817 (not recommended) is 80% to 160%, and Darlington optocouplers...[Details]
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1. Smart
Product
Introduction
The intelligent video system is composed of a video analysis
server
located at the front end or back end
. It analyzes the vide...[Details]
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You can use a multimeter to measure it. For a digital meter, you can use the special capacitance range to measure it. You can also use the resistance range of a pointer meter to measure it. It is r...[Details]
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The signal detection circuit is shown in Figure 3 (a), and the waveform is shown in Figure 3 (b):
In Figure 3 (a), LM393 and other components form two Schmitt voltage comparators, whic...[Details]
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The German automotive industry has recently been forced to cut production due to chip shortages, with automakers such as Volkswagen and Volkswagen shutting down assembly lines. Der Spiegel magazine p...[Details]
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LED, or light emitting diode, is a semiconductor solid-state light-emitting device. It uses solid semiconductor chips as light-emitting materials, and emits photons through the excess energy releas...[Details]
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If there really were typical or common embedded system applications, the product catalogs of mainstream semiconductor companies would be much thinner. Designers now not only have to choose from a...[Details]
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This circuit uses an attenuator field effect transistor (FET) to shunt the signal to ground. The R2 is used to control the output level (attenuation level), but you can use other sources of voltage s...[Details]
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According to Reuters, Apple's supply chain data shows that building factories in Brazil and India has not reduced Apple's dependence on China as Sino-US trade tensions continue to escalate. At the sa...[Details]
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Abstract: This paper mainly discusses the digital technology of automobiles and electric vehicles, the structure of computer control systems, and related issues of field communication. Taking the b...[Details]
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Apple's Coronavirus Tool App Sina Digital News reported on the morning of May 2 that Apple today updated its COVID-19 screening application, which is designed to help people understand the latest...[Details]
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According to foreign media reports, the PlayStation 5 exclusive game "Returnal" being developed by Housemarque has been postponed. As confirmed today on Twitter, the third-person shooter will be re...[Details]
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Apple iPhone SE 3 was officially launched on March 18. According to Taiwan Economic Daily, in order to meet the demand for orders in the second quarter, the main foundry Hon Hai, its iDPBG busi...[Details]
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LIN bus
LIN (Local Interconnect
Network) is a low-cost serial communication network for distributed applications in automobiles. It is used to realize distributed electronic system control...[Details]
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Long Term Evolution (LTE) is rapidly gaining popularity around the world. China Mobile has started the construction of more than 200,000 TD-LTE base stations across the country, and 100 key cities ...[Details]