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This article discusses how to wake up a touch-sensitive device such as a tablet without touching the device, using basic gesture recognition and novel proximity sensors. The article discusses the p...[Details]
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I. Introduction
In the field of power conversion, isolated converters (forward, flyback, and double-ended) with low output DC voltage all use MOSFET as the rectifier device. Since these devi...[Details]
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In recent years, lighting has become an important area that countries around the world are targeting to promote energy conservation and environmental protection. According to statistics, about 20% ...[Details]
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Abstract: The output of high-range acceleration sensor is less than 10 mV under the excitation of small signal. The noise of traditional test system may cover such small voltage signal, so that hig...[Details]
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1 Embedded Systems
Embedded System refers to a collection of computer hardware and software with specific functions or purposes, which is divided into embedded software system and embe...[Details]
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introduction
The core features of mobile value-added service products are mobility, immediacy and personalization. Mobile value-added services are a new service mode that is rapidly developing...[Details]
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Current
measurement:
Magnetic balance Hall current
sensor
is used
. The sensor can measure AC from DC to 100kHz.
In automatic measurement and control systems, it is often nec...[Details]
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1 Introduction
Lijia'an Yellow River Diversion Culvert is a large gravity diversion gate in the lower reaches of the Yellow River. The Yellow River Diversion Culvert is located in Lijia'an Vi...[Details]
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1. Introduction
Stepper motor is a basic component that converts electrical energy into kinetic energy. It has been widely used in a variety of electromechanical equipment, such as various machine...[Details]
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In the development direction of the automotive industry, electric vehicles (EV) and hybrid electric vehicles (HEV) are becoming an obvious trend. From a technical point of view, hybrid power is mor...[Details]
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I. Introduction
The use of electronics in cars dates back to the early 20th century when electric starters replaced hand cranks. Automotive electronics became popular in the 1960s with the...[Details]
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The circuit has overcharge protection, over-discharge protection, over-current protection and short-circuit protection functions. Its working principle is analyzed as follows:
1 Normal state
...[Details]
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1 Overview
As a driving power source, the new battery has a range of more than 200 km within the acceptable weight range of the mass market, which provides an important way for power batteries...[Details]
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PID is proportional differential adjustment. You can refer to the detailed introduction in the automatic control course for details! The positive action and the negative action in temperature contr...[Details]
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1 Theoretical Analysis
Ultrasonic waves
When propagating in a suspension, the ultrasonic waves that encounter the suspended particles are scattered and attenuated at the interface, an...[Details]
DIY/Open Source Hardware
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