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introduction In substation automation systems, it is often necessary to collect and process data on multiple three-phase voltage and current signals (such as real-time monitoring of power quality). I...[Details]
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Light guide plate
Introduction:
The design principle of the light guide plate is derived from
the
liquid crystal
display screen
of the laptop computer
. It is ...[Details]
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We know that only one digital tube/LED can be lit up at a time, but we can make 8 digital tubes light up at the same time through high-frequency dynamic scanning. Here is how to achieve it. 1. Eigh...[Details]
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Recently, SAIC Motor announced that it has developed a new built-in deep ultraviolet disinfectant car air conditioner, which will soon be put into production. SAIC Motor officials learned that from F...[Details]
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The MAX1284/MAX1285 12-bit analog-to-digital converters (ADCs) combine a high-width sample/hold (T/hr) with a high conversion speed, an internal +2.5 V reference, and a low-power serial interface. The...[Details]
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During the use of wire rope, it is easy to have defects such as broken wire, wear, corrosion, local abnormal shape, and rope diameter reduction, which will lead to the decrease of wire rope strengt...[Details]
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Detection of fixed resistors Connect two test leads (regardless of positive and negative) to the two end pins A09-103G of the resistor to measure the actual resistance value. In order to impr...[Details]
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Bringing driverless cars to reality
The "star track" of autonomous driving has been affected by policy lags and the capital winter. It has been struggling in the past period of time. Many ...[Details]
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The selection of reducer is a compulsory course for every mechanical design engineer. Therefore, we will introduce the selection precautions of reducer based on the selection sample of reducer.
...[Details]
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The battery is an important emergency power source for the DC system of the substation. Once the circuit is open, it will pose a serious threat to the power supply safety of the entire substation. ...[Details]
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The lighting industry is developing continuously, and LED lamps and traditional lamps are constantly competing. There are many manufacturers producing LED and LED lighting . Different manuf...[Details]
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Boot from u-boot (1.1.6) in sd card u-boot loads the kernel (4.0) of the first partition (formatted as fat16) in the sd card, and then the kernel starts. // If a partition is to be formatted as fat...[Details]
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At the 2012 Guangzhou Auto Show, many manufacturers launched hybrid models. At the Changan Automobile booth, we saw Changan launch its own hybrid system. What are the characteristics of this hybrid sy...[Details]
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Sometimes it starts from NandFlash, sometimes from NorFlash, sometimes with U-boot, sometimes with SDRAM, etc. Obviously, it is easy to get confused. How is the program executed?
1:
Wheth...[Details]
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On October 30, the e-sports performance flagship, iQOO 13, was officially released. As a flagship series with a high cost-performance ratio, iQOO has strong performance and has been additionally op...[Details]
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