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The hydrogen fuel cell chassis jointly developed by SinoHytec and BAIC was exhibited at the 2019 World New Energy Vehicle Conference Hydrogen fuel cell vehicles are the hottest topic in public opi...[Details]
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In addition to meeting safety requirements, the LED drive circuit should have two other basic functions. First, it should maintain constant current characteristics as much as possible, especially w...[Details]
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Online automatic detection items for refrigerators and their components include:
(1) Refrigeration characteristic curves of freezer and refrigerator compartments;
(2) Pipeline characteristic para...[Details]
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1. The green light in the figure is the elevator up indicator, the yellow light is the down indicator, and the red light is the alarm indicator. 2. The elevator is initially located on the first floo...[Details]
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Theverge reported that the Samsung Galaxy Fold has been launched in the United States for sale at a price of $1,980. Samsung said that users who purchase the Galaxy Fold before December 31, 2019 ca...[Details]
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The TVs in my friends’ homes must have been replaced for several generations. My family has replaced the third TV since I can remember, and my friend’s TV is already the sixth generation! Because ...[Details]
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This is a traffic light program I wrote myself out of boredom a few days ago and implemented it on a 51 microcontroller. Basic timed traffic light switching is implemented, changing the traffic lig...[Details]
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The frequency converter is a commonly used electric energy control instrument, which is widely used in many industries such as industry, chemical industry, shipbuilding, electronics, electricity, avi...[Details]
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Hengxuan Technology is a SOC chip developer founded on June 8, 2015. Its legal representative is Zhang Liang. Its main products are audio system-level chips with WIFI/BT wireless connections. Its pro...[Details]
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Relying on the good momentum of rapid development of new infrastructure, digital technology has been widely used. China has the largest single market and digital technology users, the richest indu...[Details]
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This paper introduces a fully digital UPS design method based on Motorala single chip microcomputer MR16. A prototype is made according to the design idea and good experimental results are obtained...[Details]
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1. Internal resistance measurement technology based on digital filter
Online measurement of the internal resistance of each single battery is one of the difficulties of the detection ...[Details]
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The method of measuring resistors in a row is relatively simple. For resistors in a row with a known pin arrangement order, one test lead can be connected to the common pin, and the other test lead...[Details]
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0 Introduction
With the rapid development of society, the number of private cars is growing, and frequent traffic accidents not only cause personal injury and adverse effects . Therefore, the ...[Details]
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The inverter is an electrical device that converts AC power into AC power with adjustable frequency. It is widely used in industrial automation, motor drive and other fields. In practical applicati...[Details]