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Most power factor correction ( PFC ) power stages operate in critical conduction mode (CrM), which controls the inductor current to ramp up from zero to a desired peak level and then back down to zer...[Details]
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1. Working principle of buzzer Active buzzer: refers to the oscillation source, which will sound when powered on with internal oscillation. Passive buzzer: to give square wave, constantly connected...[Details]
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The camshaft position sensor is also called the camshaft angle sensor, phase sensor, cylinder identification sensor, and some cars also call it the 1 cylinder top dead center sensor. The most common ...[Details]
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Example of calculating the initial value of a timer
1. Calculation of the initial value of the 10MS timer:
1. Crystal oscillator 12M
12MHz divided by 12 is 1MHz, which means one second = 10...[Details]
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1. What is the junction temperature of LED?
The basic structure of LED is a semiconductor P-N junction. Experiments show that when current flows through the LED element, the temperature of th...[Details]
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According to Gsmarena, 13 years ago today, Apple released the first generation of iPhone. Analysts predict that after the end of fiscal year 2020 (ending at the end of September this year), the ...[Details]
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On October 17, the Ministry of Industry and Information Technology recently issued the "Notice on Promoting the Evolution and Application Innovation and Development of 5G Lightweight (RedCap)", propo...[Details]
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Recently, Brazilian media reported that Huawei is teaming up with China Mobile and may acquire Brazilian operator Oi SA. Today (23), Huawei issued a statement denying the rumor. Huawei said it has ...[Details]
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Ten years of experience in the industry, teaching you how to get started with microcontrollers Lecture 10:
At present, almost all beginners install the debugging software VC on their computers when l...[Details]
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The Global Navigation Satellite System (GNSS) is of great significance in many fields, including politics, economy and military. GNSS positioning technology can be seen in everything from airplanes a...[Details]
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Recently, the Industrial Chain Innovation Seminar and the 2024 International Autonomous Intelligent Robot Competition Preparatory Meeting jointly organized by the Group Co., Ltd. and Tsinghua Unive...[Details]
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1 Introduction
There are many electronic control units in electric vehicles, small internal space, and large environmental interference, which puts higher requirements on the control system ...[Details]
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Gartner releases the 2024 digital government service technology maturity curve:
Six technologies that will have a disruptive impact in five years
CIOs need to close the inno...[Details]
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When processing ARM7 serial port receiving and sending data, interrupts are usually involved. However, sometimes some data can be discarded, while some must be received or sent. There are two ways to...[Details]
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0 Introduction
High temperature motors are widely used in oil well logging, aerospace and national defense. At present, induction motors are generally used. However, induction motors h...[Details]
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