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This paper takes energy conservation as the starting point, and designs an energy-saving control device according to the frequent braking characteristics of urban buses. Through this device, the orig...[Details]
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I helped someone repair a clock today and found that the data read from the DS1302 was not displayed normally. So I replaced it with a new one and it worked. I thought it was that simple, the chip was...[Details]
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1 Overview
Power system equipment is closely related to heat. From the perspective of safety and economy, it is very important to monitor the thermal status of equipment online. Infrared non-contact ...[Details]
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introduction
The storage test technology method is an effective method for recording the parameters of moving objects under special conditions. It first stores the test data in the memory, an...[Details]
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Current probes can be used to measure the current flowing through a conductor. They are magnetic rings designed based on the Faraday principle to measure the interference current signal in the conduc...[Details]
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This article summarizes some common methods of secondary constant current in LED lighting power supply, hoping to help novices improve. It is no exaggeration to say that the LED driver power suppl...[Details]
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At the same time, remember to set the delayed initialization function 1 //System clock initialization function 2 //pll: Selected frequency multiplier, starting from 2, the maximum value is 16 ...[Details]
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In recent years, with the rapid development of smartphone operating systems, it has provided fertile soil for mobile phone automated testing in terms of technology and demand. Mobile phone automated t...[Details]
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The power amplifier, commonly known as the "loudspeaker", is the most basic device in the audio system. Its task is to amplify the weak electrical signal from the signal source (from the mixing con...[Details]
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1. How to study after getting our courseware? Our relative goal is relatively clear, which is to work on projects. Each project also has clear functional requirements. We only need to implement the f...[Details]
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introduction
At present, most of the automatic blood pressure monitoring systems used in hospitals are imported equipment, which are expensive and increase the cost of medical treatment. The s...[Details]
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After China's three major telecom operators launched 5G tariffs in November, China officially entered the first year of 5G. The market immediately focused on whether 5G mobile phones could have explo...[Details]
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Mobile backup power supplies solve the outdoor power supply needs of digital products, and use natural renewable energy conversion and energy storage or household electricity storage to solve...[Details]
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The basic structure of twisted nematic LCD
1. Overview of Liquid Crystal Display
Liquid Crystal Display (LCD) uses liquid crystal material as its basic component.
The crystals can ...[Details]
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0 Introduction
Existing research on multi-level converters is mainly focused on voltage source converters (Vohage Source Inverter, VSI for short), while research on current source converte...[Details]
RF/Wirelessly
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