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The United States Air Force is looking for a company that can design and manufacture a 3-phase uninterruptible power supply (UPS) that can provide 480V AC power to a 100kVA equipment load for at leas...[Details]
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A few days ago, a regulatory document submitted by Tesla to the U.S. Securities and Exchange Commission (SEC) showed that it had signed a pricing agreement for 2021 with Panasonic, its long-term batt...[Details]
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According to foreign media GSMArena, Motorola launched the Motorola G50 5G mobile phone earlier this year. The latest news shows that Motorola is about to launch a G50 5G mobile phone code-nam...[Details]
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The AC adapter circuit of a commercially available portable CD/VCD player is shown in the attached figure. The nominal output of the adapter is 5V, 500mA, the volume is 7×4×1.8cm, and the weight is a...[Details]
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The figure below is the power supply module circuit diagram (+V1 and -V1 power supply module). +V1 and -V1 provide +30V and -30V voltages for TDA7294 respectively.
...[Details]
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LG Electronics' smartphone business has been losing money for 16 consecutive quarters, which is why LG can no longer continue to produce smartphones in South Korea. On the 25th, LG Electronics announ...[Details]
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Reasons why the motor burns but the switch does not trip
When the motor burns but the switch does not trip, the following situations may occur. First of all, it is very important to understan...[Details]
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High-purity platinum wire is wound into a coil. In order to make the coil have an appropriate resistance (1Ω～2Ω), it should generally be wound more than 10 times. A paste coating composed of aluminum ...[Details]
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The basic principles and functions of any MCU are similar, and the only difference is the configuration and number of its peripheral function modules, instruction system, etc. For the instruction sys...[Details]
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Texas Instruments announced today that the company's board of directors has appointed Haviv Ilan as its next president and chief executive officer, effective April 1. Haviv Ilan, who has worked at T...[Details]
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Huawei has been included in the Entity List by the United States for a long time, but Huawei has not been greatly affected. In the Q&A session after Ren Zhengfei's public dialogue today, an audience ...[Details]
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High brightness light emitting diodes (
HB
LEDs
)
combine high output, high efficiency, and long life. Manufacturers are developing devices that can achieve
higher
luminous...[Details]
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The hello world program is a must-have for beginners of every language. Here is a brief source code in assembly form:
And rough notes. You can check the function of interrupt 21 on the Internet. I ...[Details]
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According to foreign media reports, on Wednesday local time, the adult guardian of a child in California filed a class action lawsuit in the federal court In San Jose, accusing Apple of violating a C...[Details]
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The multiplexer is a key device in the digital TV front-end platform. Its main function is to complete the multiplexing of the input multi-channel transport stream (TS). Its performance stability d...[Details]
DIY/Open Source Hardware
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