IEEE Spectrum reports that in 2005, the transistor density of large-scale integrated circuits used in data processors will reach 100 million/cm2, the clock frequency will be 1 GHz, and the feature size will be no larger than 100 nm, as shown in the table.
As shown in the table, the 10-year development prospects of VLSI are predicted
In order to meet the power supply needs of the next generation of fast microprocessors, portable communication devices, servers, etc., it is necessary to develop VRMs with large current (50-100 A), low output voltage (less than 1V), and high current change rate (5A/ns). It is necessary to study new circuits, apply high-performance components, and study new structures and new packaging technologies to integrate microprocessors and VRMs of comparable size. The figure shows a concept of integrating microprocessors and VRMs.
As shown in the figure, the microprocessor and VRM are integrated
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STM32 ADC DMA USART comprehensive learning
Learn STM32 ADC conversion and write and debug programs on the development board.
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1. Main circuit and its function
The main circuit of the PWM DC/DC converter is to process
As shown in the figure, the circuit diagram of
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Brushless DC motor (BLDC) is a type of permanent magnet synchronous motor, not a true DC motor, referred to as BLDC in English. Different from brushed DC motor, brushless DC motor does not use mechanical brush device, but adopts square wave self-controlled permanent magnet synchronous motor, replaces carbon brush co
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Ordinary digital multimeters rely on manual operation to complete the conversion between AC and DC measurements. The new DT860D digital multimeter uses the NJU9207F automatic range conversion chip and is equipped with peripheral auxiliary
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IDC latest data: Huawei and vivo shipments increased significantly in Q1, while Apple's shipments fell sharply
Market research firm IDC released the global smartphone market statistics report for the first quarter of 2019. Data source: IDC The report shows that the total number of smartphone shipments in the first quarter of this year was 310.8 million, down 6.6% from 332.7 million in the same period last year. Among them
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Large-size LCD TV ACDC power supply architecture and the latest LED backlight solution
The LCD TV market has been growing rapidly in recent years. Market research firm DisplaySearch predicts a compound annual growth rate (CAGR) of 16% between 2008 and 2012, with total shipments expected to reach 140 million units in 2009 and to exceed 200 million by 2012.
As the market scale expands rapidly, unde
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