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Priced at 749 yuan, Apple's MagSafe external battery has officially been put on sale. However, consumers have encountered various unexpected problems after purchasing it, among which the most re...[Details]
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The insulation level and temperature rise of the motor are important indicators of motor performance, which directly affect the service life and safety performance of the motor.
In practical ...[Details]
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Taking the single-chip microcomputer AT89C51 as the control core, the semiconductor refrigeration technology is introduced into the LED heat dissipation research. The PID algorithm and PWM modulati...[Details]
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On December 6, the signing ceremony of the long-term power transmission and reception cooperation agreement for the Gansu Jiuquan to Hunan Xiangtan UHV DC project was held in Beijing. The signing o...[Details]
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If the resistance block has a large error in a certain range, it means that the shunt resistance value in that range has changed. You can readjust the resistance value or replace the resistance of th...[Details]
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Case number one: Instrument model: 8720ES Instrument failure: does not turn on The customer described that the instrument suddenly went black and could not be restarted while in use. Based on the fau...[Details]
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To convert a 2-digit hexadecimal number to decimal, divide it by 10 to find the quotient and remainder. What about 4-digit hexadecimal numbers? The DIV instruction can only perform division operati...[Details]
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A new study finds that electric vehicle batteries could help store renewable energy, making it a reality for the grid and meeting its energy storage needs as early as 2030. Climate think tank Ember...[Details]
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1. ADC Introduction STM32F103 has at least 2 AD analog-to-digital converters, each ADC has 18 channels, and can measure 16 external and 2 internal analog quantities. The maximum conversion frequency ...[Details]
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Development Environment Host development environment: Ubuntu 12.04 BootLoader：u-boot-1.1.6 kernel：linux-2.6.30.4 CPU：s3c2440 Development board: TQ2440 Development steps 1. Hardware Analysis The har...[Details]
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1. First you need to set up Keil ! (https://img-blog.csdn.net/20180509170628341?watermark/2/text/aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dhbmd6aGltaW5fMDcwMg==/font/5a6L5L2T/fontsize/400/fill/I0JBQkFCMA==/diss...[Details]
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The MAX9276/MAX9280 gigabit multimedia serial link (GMSL) serializers and deserializers receive data over 50Ω coaxial cable or 100Ω shielded twisted-pair (STP) cable and output the deserialized data ...[Details]
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July 25, 2019. Today, an average car has around five square meters of glass, which is almost twice as much as it was 30 years ago. While many components, including interior mirrors with built-in fati...[Details]
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1. Introduction
With
the rapid development of
power
electronics
technology, power electronic equipment is increasingly closely related to people's work and life, and e...[Details]
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PT100 temperature sensor is a commonly used temperature measurement device with the characteristics of high precision, high stability and high reliability. This article will introduce the working p...[Details]
Power technology
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