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In recent years, improving the power factor of switching power supplies and reducing their pollution to the power grid have become an inevitable trend in the development of power supplies. In order to...[Details]
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At present, there are three main methods for LED to achieve white light: 1. Synthesize white light through the LED red, green and blue three-primary color multi-chip set and light emission. A...[Details]
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With the advent of the digital wireless communication era, some of the communication equipment used in daily life have gradually begun to be digitized. Digital Communication Technology and Applic...[Details]
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The VF voltage of LED light sources for lighting is very low, generally VF=2.75-3.8V, IF is 15-1400mA; therefore, the output voltage of LED driver IC is VFXN or VFX1, IF constant current is 15-1400...[Details]
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1. Install CodeWarrior The development environment for Freescale's 16-bit microcontroller is CodeWarrior5.1. This software is easy to install and the installation file can be downloaded from th...[Details]
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VSEC is the secondary voltage of the transformer, and Vgs is the driving voltage of the synchronous rectifier obtained by the auxiliary winding. It can be seen that even within the dead time, the d...[Details]
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Working principle of automotive relays
Relays are an automatic switching device consisting of an electromagnetic mechanism and at least one contact. Among them, the electromagnetic mechanism ...[Details]
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In recent years, LED has received more and more attention as a new generation of light source. From power indicator lights, car indicator lights, traffic indicator lights to outdoor display screens...[Details]
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0 Introduction
Energy shortage and environmental pollution are becoming increasingly serious in the world today, forcing people to find and use new alternative energy sources. With the improvement ...[Details]
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The diffusion effect on a liquid chromatography column is somewhat similar to that on a gas phase packed column, but not exactly the same.
The similarity is that the liquid chromatography column ...[Details]
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Structural variables can be passed in their entirety as function parameters. Transfer process: All members are transferred one by one. Pointer variables are passed as function parameters. Then only t...[Details]
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Here we introduce a voltage-stabilized power supply circuit without voltage-stabilizing diode. Its output voltage can be continuously adjusted from 0 to 9V and can be applied to various small elect...[Details]
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Electronic transformer At present, the methods for measuring the hot spot temperature of transformer windings include direct measurement, thermal simulation measurement and indirect calculation me...[Details]
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Abstract: With the complexity of system applications, the same data needs to be distributed to different terminals in many cases, which also promotes the application of network transmission mult...[Details]
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The S120 encoder is a high-precision rotary encoder that is widely used in industrial automation, robotics, CNC machine tools and other fields. The S120 encoder has a variety of models, and the par...[Details]
PCB Design
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