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A battery capacity tester is an instrument that tests how much power a battery can store. Most of the batteries that need to be measured on the market are mobile phone batteries, computer batteries, ...[Details]
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u-boot startup process: From the file level, the main processes are in two files: cpu/arm920t/start.s, lib_arm/board.c, 1)start.s The boot code executed in flash, which is stage1 in bootload...[Details]
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There are many places where digital technology can be used in a power system, one is within the power supply itself, and the other is to implement power management and monitoring functions at the...[Details]
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Spectrum Analyzer is mainly used to display the spectrum characteristics of the frequency domain input signal, so it is an indispensable measuring instrument for signal analysis. Spectrum analyzer ...[Details]
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Abstract: According to the actual working conditions of the leakage transformer, the equivalent circuit and magnetic circuit analysis are combined to discuss the conditions with and without magneti...[Details]
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TOP2XX series IC is a kind of three-terminal switch power supply chip that integrates control circuit and power switch. The package form of this kind of chip is TO-220. The pin name and function ar...[Details]
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K-type thermocouple is a temperature sensor commonly used in current industrial production and scientific experiments. It can directly measure the temperature of liquid vapor, gas medium and solid ...[Details]
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Tip 1: Avoid measurement errors caused by connections, test leads, and DMM wiring The simplest way to eliminate errors caused by wiring is to perform a null measurement. For DC voltage or resistance ...[Details]
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Control strategy schematic (compensation for harmonic current)
As shown in the figure. The power supply current is closed-loop controlled, and the reference current and the actual cu...[Details]
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I don’t know if you have noticed that there have been more and more news about Apple’s quality issues in recent years. Last year, the iPhone 12 was returned and exchanged on a large scale by consumer...[Details]
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Many designs use astable multivibrators based on logic elements. The simplest approach is an RC feedback loop around a single inverting Schmitt-trigger converter (Figure 1). The output charges th...[Details]
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Deep-sea motor control system is a key technology in deep-sea operations such as deep-sea scientific investigation, geological exploration, biological resource collection, and deep-sea salvage. It ...[Details]
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According to foreign media reports, in order to protect pets in vehicles, Ford has developed an airbag installed at the bottom of the seat and has obtained a patent. (Image source: USPTO) The ...[Details]
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Segment Displays, also known as digital tubes in English, are devices that package multiple light-emitting diodes together to form an 8-shaped or a 5-shaped device. As shown in the picture ab...[Details]
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0 Introduction
Modularization is the development trend of switching power supplies. Parallel operation is an effective solution for large-capacity power supply products. Capacity expansion can ...[Details]
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