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According to foreign media reports, Saudi Arabia's Basic Industries Corporation (Sabic) has developed a plastic-intensive electric vehicle (EV) battery pack concept using a systems engineering approa...[Details]
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Under what circumstances is the battery internal resistance tester used? The battery internal resistance tester is a handheld tester that can measure the voltage and internal resistance of the batt...[Details]
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The hottest news today is that many media reported that "Tesla Shanghai Super Factory plans to produce about 550,000 vehicles in 2021, including 300,000 Model 3 models and 250,000 Model Y model...[Details]
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A digital voltmeter is designed using the microcontroller AT89S51 and ADC0809. It can measure DC voltage values between 0 and 5V and has a four-digit display, but uses the least number of components...[Details]
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Use a signal generator to input a signal to the board.
The oscilloscope
can generally only be used to
test
the waveform between a certain node and the ground on the circuit. If the ...[Details]
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clock structure to generate ARMCLK, HCLKX2, and HCLK. clock divider
consists of two parts
pre-dividers
and
post divers.
there are two pre-dividers to divide by 2 and 5
...[Details]
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LED (light emitting diode) has become a new generation of green lighting source with its many advantages such as energy saving, environmental protection, high brightness and long life. As LED light...[Details]
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Following the sharp rise in the price of key semiconductor gas materials such as neon and unstable supply caused by the Russia-Ukraine conflict, the Belgian plant of 3M, the world's largest supplie...[Details]
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In a 32-bit ARM system, a branch instruction or a PC register load instruction is usually placed in the interrupt vector table to implement the function of the program jumping to the interrupt serv...[Details]
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1. What is
the junction temperature of
LED
?
The basic structure of LED is a P-N junction of a
semiconductor
. Experiments show that when current flows through an LED
...[Details]
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Honor held a new product launch conference in Wuhan, launching a number of new products including Honor 20S, Honor Play 3, and Honor MagicBook Pro Ryzen Edition. Honor 20S claims to have solved the p...[Details]
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On the evening of August 26, BOE disclosed its 2019 semi-annual report. The company achieved revenue of 55.039 billion yuan in the first half of the year, a year-on-year increase of 26.6%; the net pr...[Details]
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Take two units as an example: use an analog multimeter to measure
Static measurement: put the multimeter in the multiplication 100 position, measure the resistance with the black pen connected to...[Details]
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"Seventy years of ups and downs have made a great country stand out.
22 years of magnificent Hong Kong moving forward courageously. "
In the 22 years since Hong ...[Details]
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Video surveillance market and development trends
The escalating security issues have forced governments and institutions to invest heavily in surveillance and security equipment. In addition, t...[Details]
Power technology
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