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Researchers have developed a see-through augmented reality (AR) prototype based on an ultrathin nanoimprinted metalens array, creating a full-color, video-rate, and low-cost 3D near-eye display sol...[Details]
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As the living standards of our people continue to improve, more and more citizens have bought their own houses. Before moving in, people like to decorate their houses to make them more comfortable. Bu...[Details]
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I. Overview The measurement of DC resistance of power transformer winding is one of the important items in its test. It is an important data for determining short-circuit loss. Through the measu...[Details]
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The concept of smart cities is no longer a pipe dream in movies, but a reality that can be realized in any city soon. Imagine that failures in the city can be handled in real time, and the city can a...[Details]
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The fierce competition in China's smartphone industry is unprecedented in any other country or region in the world. In order to stand out, domestic mobile phone manufacturers are racking their brains...[Details]
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/*--------------------------------------------------------------------------
ST7920.H
The user function is C51.
Copyright (c) 1988-2004 Keil Elektronik GmbH sum zhaojun
All rights reserved.
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This is my first time to use ARM bare metal debugging. I’m going to record this here for reference by people who encounter the same problem. First, you need to download the corresponding Samsung ke...[Details]
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The structure of current feedback is very different from that of voltage feedback. Current feedback is well suited for high-speed signals because it is not limited by the basic gain-bandwidth produ...[Details]
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Classification of inverters
There are many types of inverters, which can be classified in different ways.
1. According to the frequency of the inverter outputting AC power, it ca...[Details]
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With the development of modern science and technology, the power system is gradually developing towards comprehensive automation and unmanned power stations. The DC power supply monitoring system, ...[Details]
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NCL30000 is a small to medium-sized
switching
power
supply controller
suitable for single-stage PFC LED
driver
. NCL30000 has a very low starting current of 24uA, an ope...[Details]
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Many people do not understand the situation of Sub-6GHz and millimeter wave, so ZTE executive Lu Qianhao specially wrote an article to popularize the knowledge. Lv Qianhao said that the global ...[Details]
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More and more countries are encouraging consumers to adopt hybrid electric vehicles (HEV) and electric vehicles (EV) to promote a cleaner world. Yet bringing a new electric or hybrid vehicle to mar...[Details]
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1. CREE is
a well-known LED chip manufacturer in the United States. Its products are based on silicon carbide (SiC), gallium nitride (GaN), silicon (Si) and related compounds, including blue, green,...[Details]
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1 Introduction
Information acquisition mainly includes the acquisition, storage, processing and control of signals and data. It first collects and records the physical analog quantities of the...[Details]