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Apple Inc. (hereinafter referred to as Apple) released the latest iPhone 11 Pro (Max) on September 11, 2019, which comes with a USB-C PD (Power Delivery) 18W power adapter and USB-C to Lightning cabl...[Details]
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PT4115 is a step-down constant current source IC in continuous inductor current conduction mode (Figure 1), which can directly convert DC voltage into a stable constant current output. This chip is s...[Details]
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On May 23, iQOO's flagship iQOO Neo8 series was officially launched
. This series of products is fully equipped with BOE's flexible OLED flagship ultra-clear eye-protection screen, which brin...[Details]
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The second Digital China Summit was held at the Straits International Convention and Exhibition Center in Fuzhou from May 6 to 8. As a pioneer province in informatization construction, Fujian is th...[Details]
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As a product of Tektronix, Keithley Sourcemeter is as famous as Tektronix oscilloscopes. However, some users found that errors were introduced by resistors when using Keithley's source meter multimet...[Details]
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Power Supply Development Overview
The power supply industry is the energy-based industry for the entire electronics industry. With the diversification of power electronic equipment and t...[Details]
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With the rapid development of my country's economy and the rapid growth of urban population, many large and medium-sized cities are facing the problem of traffic congestion caused by the growth of ...[Details]
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This afternoon (24), a 6.3-magnitude earthquake occurred in Yilan County, Taiwan, China, with a focal depth of 60 kilometers. The epicenter was located on the island, 61 kilometers from downtown Taip...[Details]
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1. Processing and laying of cable tubes
(1) Metal cable tubes should not have perforations, cracks, significant unevenness, or severe rust, and the inner wall of the tube should be ...[Details]
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1. u-boot startup process Step 1: The code in IROM in S5pc100 automatically copies the first 16KB of NAND FLASH to 0x34000 of SRAM, and then the first part of bootload starts to exec...[Details]
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As the size of modern high-speed ultra-large-scale integrated circuits continues to decrease, the power requirements continue to increase. Therefore, the power density of the power supply must be incr...[Details]
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Detailed description of the definition of each bit of DTC status:
1.0 DTC status bit0: testFailed
If the most recent test result is Failed, the status bit 0 of the corresponding DTC...[Details]
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The realme V13 5G mid-range phone has been officially released. Following the realme V11 5G that debuted earlier this year, the V13 5G is the brand's second phone equipped with the Dimensity 700 chip...[Details]
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1. Qualitative testing before revision
This is mainly done by performing "zero adjustment" and "voltage calibration" of the machine after powering on and preheating, to determine whether the over...[Details]
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Constant Current LED Driver Circuit with Power Factor Correction: 75W, 24V, 3.1A Output, 208–277 VAC Input, Single-Stage PFC Flyback Power Supply
...[Details]
Microcontroller MCU
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