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1 Composition and working principle of constant current source The constant current source circuit is shown in Figure 1. In the figure, A is a high-precision op amp, Q1 and Q2 are power MOSFETs, and ...[Details]
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As mobile phone screens get bigger and bigger, processors become more powerful and multi-core. To ensure battery life, mobile phone battery capacity also increases, which inevitably causes charging...[Details]
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LED, which is called the third lighting revolution after open flame and incandescent lamp, has broad development prospects and has been strongly supported by many countries and regions, hoping that...[Details]
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National Energy Comprehensive New Energy No. 106
Energy Bureaus of all provinces (autonomous regions, municipalities directly under the Central Government), Development and Reform Commissions...[Details]
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Overall system design 1) The controller of this design uses 51 single-chip microcomputer 2) ADC0808 collects the voltage division of the photoresistor The weaker the light intensity, the more LEDs wi...[Details]
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Many old AirPods users around me have given such comments on AirPods 3. However, as one of the benchmark products in the field of true wireless headphones, it still has a strong influence. In ...[Details]
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As the third generation of semiconductor lighting sources, LED has the advantages of low operating voltage, low power consumption, high luminous efficiency and long life. Compared with tradit...[Details]
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In recent years, the rapid development of smart
electric vehicles
has not only spawned many new "hot spots", but also brought new opportunities for innovation to many traditional components...[Details]
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On December 16, 2021, MediaTek released the Dimensity 9000 flagship 5G mobile platform, which integrates advanced chip design and energy efficiency management technology, with excellent performance a...[Details]
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An oscilloscope is an electronic measuring instrument with a wide range of uses. It can transform invisible electrical signals into visible images, making it easier for people to study the changing p...[Details]
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Today, it is almost a given that switching power supplies will use MOSFETs as power switches. However, there are instances where bipolar junction transistors (BJTs) may still have some advantages ove...[Details]
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Electronic rearview mirror (Camera Monitor Systems, CMS) is a system composed of cameras and monitors. It is necessary to see the rear and side vision of the vehicle clearly within the specified fiel...[Details]
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According to news on August 30, foreign media CNews reported that the parent company of Russian CPU manufacturer Baikal is on the verge of bankruptcy and is currently preparing to auction its assets....[Details]
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Unregulated quartz crystal oscillator circuit without inductor L
Function of the circuit
If an LC resonant circuit is used as the collector load of the transistor, the osci...[Details]
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With the development and progress of society, more and more occasions have increasingly stringent requirements for temperature, and the application of temperature monitoring systems has received in...[Details]
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