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Pencil Hardness Tester Introduction: This tester is used to evaluate the hardness of the coating. Scrape the surface of the paint film with a pencil at a 45° angle, and the operator should make sure ...[Details]
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The design adopts multiple filtering measures and twisted pair output mode to effectively reduce the output voltage ripple and improve the output quality of the power supply; it has perfect self-pr...[Details]
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Nowadays, the mainstream trend of smartphones is full screen, but due to technical reasons, everyone's full screen is not "full" enough. So various solutions have emerged, such as hole, water drop, l...[Details]
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On May 26 local time, Bloomberg reported that Apple plans to keep iPhone production basically flat in 2022. This is a conservative stance as the challenges in the smartphone industry are growing this...[Details]
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On May 25, French research institute CEA-Leti announced the launch of the first automatic imager that can activate smartphones and small appliances through facial recognition or other specific patter...[Details]
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P89C669 is a 51MX (memory extension) core microprocessor from PHILIPS Semiconductor. Its instruction execution speed is twice that of the standard 80C51 device. After the linear address is extended...[Details]
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The application of embedded systems has been expanding and becoming more popular with the needs of various intelligent control systems, intelligent toys, industrial control, and handheld devices (Port...[Details]
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Recently, the Shanghai Stock Exchange officially accepted the IPO application of Xuyu Optoelectronics (Shenzhen) Co., Ltd. (hereinafter referred to as: Xuyu Optoelectronics) on the Science and Techno...[Details]
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Discrete low noise, low distortion preamplifier
Function of the circuit
OP amplifiers developed for audio equipment include NE5532A and LM833A, which are known for their low noise, but these ICs ...[Details]
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What is a Total Station Total station, also known as total station electronic distance meter (Electronic Total Station), is a high-tech measuring instrument integrating optics, machinery and elec...[Details]
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1. What is digital power supply and what is the most essential difference between it and analog power supply?
The essence of the so-called digital power supply is that the PWM regulation of the out...[Details]
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Fault phenomenon The instrument cannot be turned on Testing process There was no response when powered on, and the initial suspicion was that there was a power supply problem. After inspection, it ...[Details]
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ARM has continuously made breakthroughs in the development of 32-bit RISC CPUs, and its structure has evolved from V3 to V6.
BSP (Board Support Package) is between the motherboard hardware...[Details]
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The two parties will cooperate to develop advanced power semiconductor technologies to promote the aviation industry's transition to hybrid and pure electric systems
Semico...[Details]
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On November 19, a report by market research firm GfK China showed that the average price of domestic mobile phones had risen to 3,480 yuan in the third quarter of 2023. After this year's price incr...[Details]
DSP and ARM Processors
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