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The following is the circuit diagram of the open circuit and short circuit burglar alarm:
The reason for using AC drive is to make the light emitting diode output greater light power. Its...[Details]
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The frequency meter range can reach 1HZ-1MHZ (in fact, the 51 single-chip microcomputer cannot reach this range, so don't do it in an experimental environment). This is a class design, which is imple...[Details]
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One of the biggest advantages of LED technology is the ability to generate pure color light with an extremely narrow spectrum in the form of electromagnetic radiation, with high efficiency an...[Details]
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Newbies to STM32 usually struggle with one problem. I am also confused about the so-called "clock problem". When we are devoted to STM32 programming, we will painfully discover the fact that no matte...[Details]
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There are already many mobile phones equipped with ultra-high zoom capabilities on the market. The reason why this function can be achieved is the emergence of periscope lenses. Currently, the mobile...[Details]
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The world is getting hotter, and data centers cannot keep up. As autumn enters, we look back on the fact that temperatures this summer have set new high temperature records many times, with the wor...[Details]
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In the past two years, brands such as Samsung, TCL, and Xiaomi have successively launched Mini LED backlit TVs. TrendForce research points out that high-specification Mini LED backlit TV products hav...[Details]
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Please follow the recommended sequence of steps below to resolve power/load circuit stability issues:
1. Remove as many capacitors as possible from the test fixture and across the DUT.
2. Use Teflo...[Details]
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Recently, I received a project that required the use of hardware I2C on STM8L to communicate with SN3731. The user was a solution provider, and the hardware designer did not leave any test points. He...[Details]
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Recently, the Suzhou Municipal Science and Technology Bureau announced the proposed projects for Suzhou's key industrial technological innovation in 2021. The announcement period is from November 1 t...[Details]
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Chopping is a current conversion technology in power electronic control. Its essence is pulse width modulation of DC control. It is named chopping because its waveform is neat and symmetrical lik...[Details]
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Chengjingxincai〔2022〕No.16
To the competent departments of industry and information technology (energy), development and reform departments, finance departments, and relevant units (enterprise...[Details]
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eo reporter Cai Yixuan from New York
It was around 6pm on Saturday, July 13, 2019. Broadway was as busy as usual. The giant LED billboards, the shining big screens and the noisy air in Times S...[Details]
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The centering of hydraulic control valve directly affects the static and dynamic characteristics of the valve. For example, the reset centering of the three-position reversing valve will affect the le...[Details]
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Intelligent soft start cabinet is an electrical equipment widely used in the industrial field. It controls the starting current of the motor to achieve soft start and soft stop of the motor, thereb...[Details]