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First, let's take a look at the soft components that represent variables in the PLC. They are mainly input X, output Y, auxiliary relay M, timer T, counter C, status S, data register D, XY. General...[Details]
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The 2450 is Keithley's next generation digital SourceMeter source measure unit (SMU) and truly puts Ohm's Law (current, voltage and resistance) testing at your fingertips. Its novel graphical user in...[Details]
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Lightning strike is a natural phenomenon, but it may cause great property loss and personal injury to human life. Therefore, in urban construction, relatively high and metal buildings and public faci...[Details]
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00 Write in front This series of articles is from a teacher who has served as a teaching assistant for the PIC microcontroller course. I mainly explained the contents of several experimental classes ...[Details]
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Passive current sharing is a method of connecting two or more power supplies or DC-DC converters in parallel so that they can share the load approximately evenly. This method is popular because it ...[Details]
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The flash memory needs to add a 12V power supply voltage when writing data. The attached figure is a circuit for switching the output voltage of the power supply when writing data to the flash memory...[Details]
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The following is the hardware LED interface of the TQ2440 development board: LED control ideas 1. Set the corresponding pin as output 2. Set the correspon...[Details]
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With the rapid development of electronic technology, household appliances and other electronic products are becoming more and more humanized. In order to realize voice processing and voice control,...[Details]
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Commonly used detection methods for integrated circuits include online measurement , off-line measurement and substitution. 1. Off-line measurement When the integrated circuit is not soldered int...[Details]
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Affected by the epidemic, the production and sales of new energy vehicles in 2020 fell sharply year-on-year, and the auto market fell to a freezing point. Faced with the current situation, the govern...[Details]
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The DER grid connection technology introduced above is "limited access", that is, strict restrictions are imposed on access capacity, etc. In order to fully utilize renewable energy, it is necessar...[Details]
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On August 9, Xiaopeng Motors announced that the first batch of 11 high-speed supercharging stations were completed and put into operation. So far, Xiaopeng Motors has put into operation 45 destinat...[Details]
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Intel and many partners gather at 2022 OpenVINO™ DevCon
June 27, 2022, Shanghai - Recently, the 2022 OpenVINO™ DevCon•China Station hosted by Intel was successfully held in the form ...[Details]
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The multi-channel pulse amplitude analyzer can not only automatically obtain energy spectrum data, but also obtain the entire energy spectrum in one measurement, thus greatly reducing data acquisit...[Details]
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The voltage-frequency converter can be constructed by using only the voltage-controlled oscillator in the phase-locked loop. The characteristic of the circuit is that when the 12th pin is suspended a...[Details]
PCB Design
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