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CCFL dimming method
There are two common methods for CCFL dimming: one is pulse dimming, also known as PWM dimming or digital dimming; the other is analog dimming. This article discusses the adva...[Details]
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1 System hardware composition and network architecture
The core of the camera hardware adopts the S3C2440A chip based on the ARM9 architecture launched by Samsung. The processor frequency reaches ...[Details]
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On December 12, according to foreign media reports, Bank of America analyst Tal Liani said that by fiscal 2022, Apple may contribute $4 billion in revenue to Qualcomm. ...[Details]
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Positive/negative polarity switching circuit for synchronous detection
Function of the circuit
The phase positive and negative conversion circuit is used in CR charge and discharge oscillation...[Details]
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0 Introduction
When ships, submarines and other underwater vehicles are in motion, cavitation is generated by the rotation of the propellers or the waves on the sea surface break and a large amount ...[Details]
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LED spotlights are LED bulbsthat emit directional light Among them, low-power LED spotlights and bulbs are the earliest designed and produced LED bulbs, and have been widely used, but the quali...[Details]
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Last week, TF Securities analyst Ming-Chi Kuo predicted that the upcoming iPhone 13 will support low-Earth orbit satellite communications. However, the media questioned this later, and the servi...[Details]
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The problem of no unlink device found is caused by selecting the wrong emulation downloader: solve: The above two selected models are consistent ...[Details]
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The latest research report released by the Emerging Device Technologies (EDT) team of Strategy Analytics predicts that the total sales of Bluetooth headsets worldwide will exceed 300 million units in...[Details]
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After determining the phase line with leakage, the method to determine the leakage location of the low-voltage line at the distribution transformer is as follows: (1) At the distribution transformer,...[Details]
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1 Temperature sensor MAX6662
MAX6662 is a 12-bit + sign bit temperature sensor. It also integrates a programmable over-temperature alarm and a three-wire (SPI compatible) serial interface in a ...[Details]
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The servo system must have basic performances such as good controllability, high stability and strong adaptability. The performance indicators of AC servo system can be measured from aspects such a...[Details]
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1.1. ADC knowledge ADC (Analog to Digital Converter) can receive 8 channels of analog signal input and convert them into 10-bit binary. Under 2.5MHz A/D conversion clock, the maximum conversion rate...[Details]
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Take the First Step
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Power Supply Design
The first step is to define the power supply requirements, including voltage range, output voltage, and load current. Possible so...[Details]
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According to foreign media reports, the U.S. Department of Energy's Argonne National Laboratory has developed a new design that can significantly improve the performance of lithium-ion batteries an...[Details]